Subjects -> ENVIRONMENTAL STUDIES (Total: 913 journals)
    - ENVIRONMENTAL STUDIES (810 journals)
    - POLLUTION (31 journals)
    - TOXICOLOGY AND ENVIRONMENTAL SAFETY (54 journals)
    - WASTE MANAGEMENT (18 journals)

POLLUTION (31 journals)

Showing 1 - 27 of 27 Journals sorted by number of followers
Water, Air, & Soil Pollution     Open Access   (Followers: 22)
Aerosol Science and Technology     Hybrid Journal   (Followers: 15)
Water, Air, & Soil Pollution : Focus     Hybrid Journal   (Followers: 7)
Journal of Hazardous, Toxic, and Radioactive Waste     Full-text available via subscription   (Followers: 6)
Journal of Limnology     Open Access   (Followers: 6)
Archives of Environmental Protection     Open Access   (Followers: 5)
Journal of Energy, Environment & Carbon Credits     Full-text available via subscription   (Followers: 5)
Greenhouse Gases : Science and Technology     Hybrid Journal   (Followers: 4)
Journal of the Air & Waste Management Association     Hybrid Journal   (Followers: 4)
Open Journal of Air Pollution     Open Access   (Followers: 4)
Jurnal Pengendalian Pencemaran Lingkungan     Open Access   (Followers: 4)
Ciencias Marinas     Open Access   (Followers: 3)
Energy and Emission Control Technologies     Open Access   (Followers: 3)
Atmospheric Pollution Research     Hybrid Journal   (Followers: 2)
Aerosol Science and Engineering     Hybrid Journal   (Followers: 2)
Journal of Polymers and the Environment     Hybrid Journal   (Followers: 1)
Pollution     Open Access   (Followers: 1)
Emerging Contaminants     Open Access   (Followers: 1)
Current Pollution Reports     Hybrid Journal   (Followers: 1)
Exposure and Health     Hybrid Journal   (Followers: 1)
Environmental Chemistry and Ecotoxicology     Open Access   (Followers: 1)
Microplastics and Nanoplastics     Open Access   (Followers: 1)
Environmental Pollutants and Bioavailability     Open Access   (Followers: 1)
Journal of Air Pollution and Health (رتبه علمی- پژوهشی)     Open Access  
Revista Internacional de Contaminación Ambiental     Open Access  
Latin American Journal of Aquatic Research     Open Access  
Hidrobiológica     Open Access  
Similar Journals
Journal Cover
Exposure and Health
Number of Followers: 1  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 2451-9766 - ISSN (Online) 2451-9685
Published by Springer-Verlag Homepage  [2468 journals]
  • Bisphenol A Negatively Impacts Human Sperm MicroRNA and Protein Profiles

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      Abstract: Abstract Bisphenol A (BPA), a widely prevalent endocrine disruptor, has detrimental effects on human health and male reproduction. Elevated BPA levels have been linked to reduced sperm quality and production, while paternal exposure may result in poor reproductive outcomes and offspring health. For many years, the effects of BPA exposure in human reproduction were mainly attributed to the deregulation of the hypothalamic–pituitary–gonadal (HPG) axis. In the past decades, other mechanisms of action have been proposed, and studies highlighting epigenetic alterations linked to BPA in sperm emerged. Nevertheless, the impact of BPA on human sperm miRNA and protein profiles and its implications for fertilization and post-fertilization events remain unexplored. This study aimed to investigate the association between BPA concentration in seminal plasma and seminal quality and to examine the alterations in human sperm miRNA and protein expression among men with varying BPA levels in seminal plasma. BPA levels were measured in seminal plasma from 102 Portuguese men, and it was detected in 88% of the samples. No correlation was observed between BPA levels and age or seminal parameters. The small RNA content of 15 normozoospermic samples was evaluated using small RNA sequencing, revealing that 15 miRNAs exhibited a correlation with BPA levels. Gene ontology analysis of their target genes indicated their involvement in embryonic development and response to stress. The proteome of 20 normozoospermic human sperm samples, categorized into four groups based on BPA levels, was accessed by liquid chromatography–mass spectrometry. Data are available via ProteomeXchange with the identifier PXD047280. Sixty-two differentially expressed proteins were identified across groups. The biological processes most affected in samples with higher BPA levels were “protein sumoylation” and “cytoplasmic translation”. The altered miRNAs and proteins identified in spermatozoa from men environmentally exposed to BPA represent potential biological markers of exposure to this endocrine disruptor and may help elucidate cases of idiopathic male infertility, fertilization failure, and abnormal embryo development.
      PubDate: 2024-02-19
       
  • Geochemical Processes of Groundwater Fluoride Evolution in Geothermal
           Areas: A New Insight into the Dynamics of Fluorine Levels in Geothermal
           Water

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      Abstract: Abstract Geothermal areas often exhibit high levels of fluorine in the geothermal water, which poses a significant challenge to the utilization of geothermal water resources. However, the underlying mechanisms responsible for the enrichment of fluoride during the formation of geothermal water are not yet fully comprehended. To shed light on this matter, an analysis was conducted to examine the hydrochemical characteristics, as well as the δD and δ18O isotopes, of geothermal water at various depths in the geothermal areas. This investigation aimed to reveal the potential evolutionary process of fluoride in geothermal water. The results demonstrate that the concentration of F– in the geothermal water samples from the Tongjing mining area ranges from 0.17 to 3.02 mg/L, with an average concentration of 1.41 mg/L. Specifically, the F– concentration in geothermal water samples above 40 °C exceeds 1.5 mg/L. The presence of Ca2+(Mg2+)–Na+(K+) exchange in groundwater causes a reduction in Ca2+(Mg2+) content, which subsequently decreases the saturation level of minerals such as CaF2, CaSO4‧2H2O, CaCO3, and CaMg(CO3)2. Consequently, more fluorine-containing minerals dissolve, leading to an increased concentration of F– in the groundwater. During the formation of geothermal water in the geothermal areas, the mixing of hot and cold water elevates the temperature of shallow groundwater. This rise in temperature enhances the solubility of CaF2 and significantly facilitates cation exchange, thereby promoting the development of a groundwater environment characterized by high temperature, high Na+ concentration, and low Ca2+ concentration. Such conditions favor the enrichment of fluoride in geothermal water. These findings offer novel insights into the impact of geothermal water temperature on the evolutionary mechanism of fluoride and elucidate the process by which fluoride evolves in geothermal water within geothermal areas.
      PubDate: 2024-02-16
       
  • Influence of Selenium Supplementation on Mercury Levels in hair of
           Metropolitan Residents in China: Spatial Distribution, Impact Factors, and
           Antagonism

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      Abstract: Abstract Selenium (Se) has an antagonistic effect on the toxicity of mercury (Hg). This study aimed to investigate the influence of Se supplementation on Hg levels in long-term chronically exposed metropolitan residents in China. The levels of Se and Hg in human hair samples from 1373 metropolitan residents in China were analyzed and differences in sex, age, and region were evaluated. Higher concentrations of Hg were found in the hair of males, 60–74 years of age, and South and East Chinese residents. Participants with Se supplementation exhibited statistical lower hair Hg levels (p < 0.01) compared to those without additional Se supplementation. The Se:Hg molar ratio was used to evaluate the detoxification ability of Se. The proportion of Se:Hg molar ratios of < 1 were 25.40% and 3.83% for participants belong to G1 (without additional Se supplementation) and G5 (Se supplementation for more than 24 months). These results indicate that long-term Se supplementation may enhance the body’s ability to bind to or detoxify Hg, leading to a lower proportion of participants with imbalanced Se:Hg ratios. It is essential to consider targeted Se supplementation or dietary adjustments to optimize the Se:Hg balance and mitigate the risks associated with Hg exposure in Chinese residents.
      PubDate: 2024-02-14
       
  • Determining the Minimum Suitable Number of Water Quality Indicators to
           Improve the EWQI Water Quality Assessment Model in Baojixia Irrigation
           District, Northwest China

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      Abstract: Abstract Selecting a suitable number of parameters for water quality assessment can make the assessment cost-effective. The current investigation involved the collection of 64 groundwater samples from the Baojixia irrigation district located in China. These samples were then analyzed for 17 water quality parameters. Two minimum entropy water quality index (EWQImin) models were proposed by selecting the key parameters from the analyzed water quality parameters through principal component analysis (PCA) and multiple linear regression analysis (MLR), correspondingly. Then, the two proposed EWQImin models were utilized to evaluate the water quality within the study area. The findings revealed that the EWQImin−MLR model, which comprised 5 key parameters (total dissolved solids (TDS), sodium (Na+), nitrate (NO3−), total hardness (TH), and fluorine (F−), exhibited better performance in groundwater quality evaluation. This model demonstrated a higher coefficient of determination (R2 = 0.953, P < 0.001), coupled with lower values of Root Mean Square Error (RMSE, 4.948) and Percentage Error (PE, 5.823%) when compared to the EWQImin−PCA model consisting of 6 key parameters including TDS, Na+, TH, chloride (Cl−), nitrite (NO2−) and chemical oxygen demand (CODMn). Furthermore, the groundwater quality in the Baojixia irrigation district was considered a moderate quality category, with the eastern region displaying poorer water quality in comparison to the western area. The comparison of EWQImin and EWQI indicated that the developed EWQImin model was a suitable and effective method as its performance in evaluating groundwater quality within the Baojixia irrigation district is excellent. The results of this research have significant implications for the effective management of groundwater and the promotion of sustainable development of water resources in future investigations.
      PubDate: 2024-02-12
       
  • Positive Association Between Serum Concentration of 4-Tertiary-octylphenol
           and Oxidation of DNA and Lipid in Adolescents and Young Adults

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      Abstract: Abstract 4-Tertiary-octylphenol (4-t-OP), a frequently utilized alkylphenol, is extensively utilized in a wide range of consumer goods. While experimental research has demonstrated that 4-t-OP exposure leads to increased oxidative stress, it remains unclear if this also occurs in human beings. To investigate this issue, we enrolled 886 Taiwanese adolescents and young adults (aged 12–30 years) and examined the associations among serum 4-t-OP levels, urine oxidized nucleoside 8-hydroxydeoxyguanosine (8-OHdG) (a biomarker of DNA damage), and 8-iso prostaglandin F2α (8-isoPGF2α) (a biomarker of lipid peroxidation). In linear regression analyses, a 1-unit increase in natural log serum 4-t-OP levels was positively associated with urine levels of the 8-OHdG and 8-isoPGF2α (β = 0.083, SE = 0.037, P = 0.025, and β = 0.418, SE = 0.068, P < 0.001) after controlling for covariates. Furthermore, we observed an interaction between age and 4-t-OP, as well as between low-density lipoprotein cholesterol and 4-t-OP, in the association between 4-t-OP and 8-isoPGF2α. In conclusion, our study showed that serum concentrations of 4-t-OP exhibit positive connections with biomarkers of oxidative stress on DNA and lipids. Additional investigation is crucial to determine the presence of a causal link between 4-t-OP exposure and oxidative stress in human subjects.
      PubDate: 2024-02-09
       
  • The Association Among Urinary Di-(2-ethylhexyl) Phthalate Metabolites,
           Serum Lipid Profiles, and Serum Apoptotic Microparticles in a Young
           Taiwanese Population

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      Abstract: Abstract Prior research has suggested that exposure to Di-(2-ethylhexyl) phthalate (DEHP) may impact lipid metabolism. However, no previous studies have investigated the relationship between DEHP exposure and newly identified lipoprotein biomarkers. Additionally, the role of lipoproteins in the link between DEHP exposure and vascular endothelial cell apoptosis remains unexplored. A total of 867 Taiwanese individuals aged 12 to 30 years were enrolled in this study to examine the correlation between urinary DEHP metabolites, lipoprotein profiles (including low-density lipoprotein cholesterol (LDL-C), small dense low-density lipoprotein cholesterol (sdLDL-C), low-density lipoprotein triglyceride (LDL-TG), high-density lipoprotein cholesterol, lipoprotein(a), apolipoprotein A1, apolipoprotein B, and triglyceride), and apoptotic microparticles (CD31+/CD42a−, CD31+/CD42a+, and CD14). We reported elevated levels of mono-2-ethylhexyl phthalate (MEHP) that were found to be positively associated with higher levels of lipoproteins [LDL-C, sdLDL-C, LDL-TG, and lipoprotein(a)] with P values less than 0.001, less than 0.001, 0.010, and 0.006, respectively, as well as three types of apoptotic microparticles (all P values < 0.001). Additionally, increased levels of LDL-C, sdLDL-C, LDL-TG, and triglycerides were linked to higher levels of ln-CD31+/CD42a− with P values less than 0.001, less than 0.001, 0.002, and 0.014, respectively. Furthermore, increased levels of LDL-C and sdLDL-C were also linked to higher levels of ln-CD31+/CD42a+ with P values less than 0.001 and 0.001, respectively. The structural equation model demonstrated that MEHP had a direct correlation with CD31+/CD42a− and was also indirectly associated with it through LDL-C, sdLDL-C, and LDL-TG. Furthermore, MEHP was directly linked with CD31+/CD42a+, and indirectly associated with it through LDL-C and sdLDL-C. In conclusion, these novel findings have important implications for our understanding of the effects of DEHP exposure on cardiovascular health. The identification of DEHP as a contributor to lipoprotein alterations and apoptosis in vascular endothelial cells provides a valuable foundation for future research in the field of environmental cardiology. Further research is necessary to determine whether a causal relationship exists.
      PubDate: 2024-02-09
       
  • Per- and Polyfluoroalkyl Substances Concentrations are Associated with an
           Unfavorable Cardio-Metabolic Risk Profile: Findings from Two
           Population-Based Cohort Studies

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      Abstract: Abstract Per- and polyfluoroalkyl substances (PFAS) are widely used and persistent chemicals, leading to ubiquitous exposure. Although high PFAS levels have been associated with an adverse cardiovascular risk profile, the distribution of levels and relations with cardio-metabolic risk markers in the general population have not been fully characterized. We assessed the association between blood levels of perfluorooctaneic acid (PFOA), perfluorooctane sulfonic acid (PFOS), and perfluorohexanesulfonic acid (PFHxS) and a range of lipoproteins and metabolites as well as clinical lipid measurements. We used data from participants of the Netherlands Epidemiology of Obesity study (NEO) (n = 584) and the Rhineland Study (n = 1962), jointly spanning an age range of 30 to 89 years. PFAS were measured with the Metabolon HD4 platform, and lipoprotein and metabolite profiles were measured using Nightingale’s nuclear magnetic resonance-spectroscopy platform, and mainly comprised lipoprotein markers. Using linear regression analyses, we quantified age-, sex-, and education-adjusted associations of PFOA, PFOS, and PFHxS with clinical lipid measurements and 224 lipoproteins and metabolites. Higher levels of PFAS, particularly PFOS and PFHxS, were associated with higher concentrations of total lipid, cholesterol and phospholipid content in most HDL, IDL, LDL, and VLDL subclasses. The effect sizes were age-dependent for the majority of the associations, with the deleterious effects of PFAS being generally stronger in people below compared to those above median age. Our observation that in the general population even low PFAS concentrations are associated with an unfavorable lipid profile, calls for further critical regulation of PFAS substances.
      PubDate: 2024-02-06
       
  • Assessment of the Long-Term Exposure to Lead in Four European Countries
           Using PBPK Modeling

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      Abstract: Lead (Pb) is a naturally occurring heavy metal that received, in the last decades, much attention in the human health risk assessment community. In the European Human Biomonitoring Initiative (HBM4EU), Pb was identified as a priority substance as various scientific and policy questions were open and still to be answered. They included the further investigation of the internal exposure to Pb, the factors determining it, and its variations within European populations. The aim of this work was to develop an integrative modeling framework for the assessment of the aggregated long-term exposure to Pb in Belgium, Czech Republic, Germany, and Norway. This framework enabled predicting the concentrations of Pb in human blood (PbB) from estimates of the external exposure. The effect of past and current exposure events was accounted for, as multiple country-specific Pb concentration data in environmental compartments and diet, and estimates of the dietary intake of Pb covering a period from the 1970s until the present times were compiled. This modeling approach allowed, using a two-dimensional Monte Carlo (MC2D) approach, running a population-based simulation and characterizing the inter-individual variability within the simulated populations and the uncertainty on the external exposure estimates. The predicted PbB levels were compared with the results drawn from HBM data. To the best of our knowledge, this holistic modeling approach combines for the first time temporal and country-specific trends in environmental lead concentrations to derive internal exposure, in order to get better insights into the relationship between environmental and human lead exposure, and to characterize individual exposure at different ages. Graphical
      PubDate: 2024-02-01
       
  • Temporal and Spatial Distribution of Disinfection Byproducts in Drinking
           Water Supplied to the Mega City of Vietnam and Assessment of the
           Associated Risks

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      Abstract: Abstract This study investigated the characteristics (levels, profiles, seasonal variations) of disinfection by-products (DBPs) including four trihalomethanes (THMs) and six haloacetic acids (HAAs) in two water supply systems (zones A and B) of Ho Chi Minh City and assessed their human health risk via daily exposure. THMs and HAAs were analyzed simultaneously using GC/MS coupled with a headspace. The results indicated that the levels of total DBPs measured in zone B (419 ± 223 and 204 ± 153 µg/L in dry and rainy seasons, respectively) were significantly higher than those in zone A (101 ± 49.7 and 48.9 ± 15.0 µg/L in dry and rainy seasons, respectively). Significant correlations (p < 0.05) between DBPs indicated similar formation pathways and variations of these DBPs in the pipeline. The findings also showed significant correlations (p < 0.05) of DBPs with not only regular parameters (TOC, UVA254, residual chlorine, Cl−) but also soluble ions (SO42−, Na+, K+, and Ca2+). THMs were the main contributors to the total DBPs (86.8 ± 7.4% and 91.4 ± 10% for zones A and B, respectively). Among four THMs, trichloromethane (TCM) was the predominant compound, accounting for 83.7 ± 4.8% (zone A) and 91.4 ± 10.0% (Zone B). For the HAA group, monochloroacetic (MCAA) was the major contributor (86.3 ± 8.2% and 60.5 ± 23% for zones A and B, respectively). Non-cancer and cancer risks caused by DBPs for the population using drinking water in Ho Chi Minh City were notably high. The study suggested that water should be pretreated before use in households to eliminate the level of DBPs and reduce their impacts on human health.
      PubDate: 2024-02-01
       
  • Geochemical Characteristics of Groundwater Consumed by Patients with
           Chronic Kidney Disease with Unknown Aetiology in the Crystalline Dry Zone
           Terrain of Sri Lanka

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      Abstract: Abstract Quality of drinking water has become a significant concern with chronic kidney disease of uncertain aetiology (CKDu), particularly in the dry zone regions of Sri Lanka. In this study, groundwaters consumed by biopsy-proven CKDu patients were assessed for identifying possible hydrogeochemical risk factors because histopathological observations are still considered the best method for identifying CKDu cases. Major anions, cations, and 22 trace elements in groundwater were measured in addition to dissolved organic carbon (DOC) and its isotope ratios (expressed as δ13CDOC). Variations of groundwater quality were monitored monthly in five selected wells. The data were compared with a non-endemic region with a similar climatic and socio-economic background. Groundwater used by CKDu cases is predominantly of the Ca–Mg–HCO3 type. Over 88% of the samples showed excess hardness, while 44% showed high fluoride (F−) contents (> 0.60 mg/L). These two parameters are noticeably different compared to groundwater from non-endemic regions with similar geoenvironmental backgrounds. The dissolved organic carbon (DOC) content varied from 0.06 to 0.30 mmol/L with a mean value of 0.15 mmol/L in CKDu wells. In most cases, known nephrotoxic trace elements such as As, Pb, Cd, and U were found to be lower than 0.01 µg/L. Seasonally, F− and Si4+ (as H4SiO4) content fluctuated, even though monsoon rain inputs did not seem to alter the geochemical composition. Principal component analysis (PCA) indicated that the dissolution of aquifer minerals and ion exchange processes are most likely responsible for the groundwater geochemistry in the study terrain. This study highlights the importance of F−, hardness (Ca2+ + Mg2+), and Si4+ in groundwaters of CKDu-related tropical terrains. The synergetic impact of these parameters needs further systematic studies, ideally combined with animal models, to unravel the aetiological mechanisms of CKDu.
      PubDate: 2024-02-01
       
  • Groundwater Nitrate Pollution Due to Excessive Use of N-Fertilizers in
           Rural Areas of Bangladesh: Pollution Status, Health Risk, Source
           Contribution, and Future Impacts

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      Abstract: Abstract Groundwater is a key water source for drinking and irrigation in Bangladesh, and nearly 69% of the total population of Bangladesh lives in rural areas and depends on shallow tube-wells for direct drinking purposes. Literature published from the year 2005 to 2021 along with N-fertilizers data from the fiscal year 1985–1986 to 2021–2022 has been reviewed in this study to understand the current status of groundwater nitrate (NO3−) pollution in rural areas of Bangladesh. The review showed that the farm inputs (N-fertilizers, manure) have the highest contribution (64%) to groundwater NO3− pollution followed by pit latrines (18%) in rural areas of Bangladesh. Based on the urea consumption rate, elevated NO3− concentration in groundwater in some rural areas, and the estimated duration of N-fertilizers accumulation into groundwater, a total of 23 districts are classified as the most vulnerable areas facing severe future NO3− pollution and may cause new concerns to local people's health within the next 3 decades. Most of these districts lie within hydrogeological Zone-I (Tista fan), Zone-II (flood plains), and Zone-III (Pleistocene tracts). After conducting the health risk assessment, this study implies that the safe standard limit of nitrate in drinking water for consumption is below 31 mg/L as NO3− for children. Governments must take immediate and long-term measures to protect public health from groundwater NO3− pollution in rural areas of Bangladesh.
      PubDate: 2024-02-01
       
  • Speciated and Total Urinary Arsenic Levels in Belo Horizonte, the Largest
           Brazilian City within the Mineral-Rich Region “Iron Quadrangle”

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      Abstract: The “Quadrilátero Ferrífero” (Iron Quadrangle) is a mineral-rich province in Brazil, where arsenic anomalies are associated with gold mining and tailings dam failures. Urine samples were randomly collected from residents of Belo Horizonte (BH) city (N = 506 total/138 speciation) and the metropolitan area (N = 35 total/10 speciation), with stratifications in age, female-male and geopolitical regions. Creatinine, acid-digested total arsenic (TAs), and five inorganic and organic arsenic species were measured: arsenobetaine (AsB); arsenous (AsIII) and arsenic (AsV) acids and their dissociation products; monomethylarsonic acid (MMA); and dimethylarsinic acid DMA). Overall, the TAs GM (μg/g creat) of all stratification groups indicated no statistical difference. The TAs geometric mean (GM) of BH was 9.68 [9.17–10.2] μg/g creat, being AsB (43.8%) and DMA (20.7%) the major components. The toxic arsenic (ToxAs) fraction (i.e., AsIII + AsV + MMA + DMA) was 5.23 [4.45–6.15] μg/L. These TAs and ToxAs values are lower than international benchmarks and the Brazilian legislated standard of 35 μg/L for ToxAs. The TAs GM (μg/L) and creatinine were 36% higher for males than for females (p < 0.0001), making TAs GMs comparable, after creatinine correction. Similarly, though the 10–19 age group showed significantly higher ToxAs GM (12.7 [6.49–24.8] μg/L) (p = 0.048) and creatinine (p < 0.001), the ToxAs GM (7.22 [2.92–17.9] μg/g creat), was not statistically different than those from the other age groups. The study, the first one in Brazil, identifies the relative contribution of inorganic and organic arsenic and provides a baseline level for clinical reference and bio-monitoring studies, particularly applicable to both occupational and non-occupational populations in a mineral-rich region. Graphical abstract
      PubDate: 2024-02-01
       
  • Metal(Loid)s in Aquatic Products and Their Potential Health Risk

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      Abstract: Aquatic products decrease environmental burdens and improve human health by supplying various essential nutrients, while their contamination with metal(loid)s could pose health risks to humans through food chain. In this study, the concentrations, trophic magnification and health risks of multiple metal(loid)s in various aquatic products were analyzed, including arsenic, cadmium, mercury, lead, cobalt, manganese, iron, copper, nickel and zinc. The results showed that the total concentrations of the metal(loid)s in marine foods from the same sea area were in the following order: seaweeds > shellfish > cephalopods > crustaceans > saltwater fish > freshwater fish. Arsenic speciation analysis indicated that high concentrations of arsenolipids were detected in lower trophic organisms. The maximum level of organoarsenic in seafood should be evaluated because of the potential toxicity of arsenolipids and arsenosugar metabolites. Weekly intake of metal(loid)s was far below the recommended provisional tolerable weekly intake even with excessive consumption of aquatic products. The hazard index was above 1 for excessive consumers, while our results also indicated that the health risks from aquatic products could be sharply decreased by reducing the ingestion of seaweeds and cephalopods. The study provided valuable guidance on the consumption of aquatic products by the general public. Graphical abstract
      PubDate: 2024-02-01
       
  • Associations of Perinatal Metal and Metalloid Exposures with Early Child
           Behavioral Development Over Time in the New Hampshire Birth Cohort Study

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      Abstract: Abstract Research on the neurodevelopmental effects of metal(loid)s has focused mainly on outcomes assessed at one time point, even though brain development progresses over time. We investigated biomarkers of perinatal exposure to metals and changes in child behavior over time. We followed 268 participants from the prospective New Hampshire Birth Cohort Study between birth and age 5 years. We measured arsenic (As), copper (Cu), manganese (Mn), lead (Pb), selenium (Se), and zinc (Zn) in toenails from 6-week-old infants. The Behavioral Symptoms Index (BSI), externalizing, and internalizing symptoms were assessed using the Behavior Assessment System for Children, 2nd edition (BASC-2) at ages 3 and 5 years. Multivariable linear regression was used to estimate associations of metals with behavior change, calculated as the difference in symptom raw scores between 3 and 5 years, in addition to the associations for symptom scores at 3 and 5 years separately. Sex-specific associations were also explored using stratified models and a sex-metal interaction term. Adjusted associations of metals and change in behavior varied by exposure and outcome. Each 1 µg/g increase in ln toenail Cu was associated with improved behavior between 3 and 5 years [BSI: β = − 3.88 (95%CI: − 7.12, − 0.64); Externalizing problems: β = − 2.20 (95%CI: − 4.07, − 0.33)]. Increasing Zn was associated with increased externalizing behavior over time (β = 3.42 (95%CI: 0.60, 6.25). Sex-stratified analyses suggested more pronounced associations among boys compared to girls. Perinatal exposure to metals may alter behavioral development between ages 3 and 5 years. Findings support the need for more research on associations between metals and neurodevelopment over longer time periods.
      PubDate: 2024-02-01
       
  • Exposure Factors vs. Bioaccessibility in the Soil-and-Dust Ingestion
           Pathway: A Comparative Assessment of Uncertainties Using MC2D Simulations
           in an Arsenic Exposure Scenario

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      Abstract: Abstract Human Health Risk Assessment (HHRA) is a widely applied method to make decisions about the environmental status of sites affected by toxic substances. Its conclusions are affected by the variability and uncertainty of the input variables in the HHRA model. The aim of this work is to apply an algorithm based on 2D Monte Carlo simulations to integrate the variability and uncertainty of exposure factors, concentration, and bioaccessibility, reported by various information sources, to assess and compare their influence on the risk outcome. The method is applied to a specific case study of exposure of children to arsenic from accidental soil ingestion in a residential setting in the city of Madrid (Spain) by combining information from 12 studies. The consideration of the variability and uncertainty of the exposure parameters in the Baseline Risk Assessment (BRA, deterministic) resulted in a greater reduction in the numerical value of risk estimations than that produced by considering only the bioaccessibility factor. The results of the Probabilistic Risk Assessment (PRA) showed that the risk distribution was more sensitive to the variabilities of the accidental soil intake rate and the total arsenic concentration than to other variables such as bioaccessibility. In this case study, the uncertainty introduced by using the "default" reasonable maximum exposure factors in the HHRA model and the variability of the concentration term produce overestimates of risk that are at least in the range of those produced by omitting the bioaccessibility term. Thus, the inclusion of bioaccessibility is, alone, insufficient to improve the HHRA since the selection of the exposure factors can significantly affect the estimates of risk for the soil ingestion pathway. In other sites or for other contaminants, however, the role of the uncertainties associated with the bioaccesible fraction could be more pronounced. The method applied in this work may be useful in updating exposure factors to reduce uncertainties in HHRAs.
      PubDate: 2024-02-01
       
  • Association of Strontium Exposure with Liver Function: A Cross-Sectional
           Study from a Mining Area in Hunan, China

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      Abstract: Abstract Previous studies found that some metals could affect liver function. However, the effect of strontium (Sr) exposure on liver function has not been evaluated. A cross-sectional study involved 1021 residents from a mining area in Hunan Province, China. This study was conducted to first investigate the effects of Sr alone as well as combined with five other heavy metals, including lead (Pb), cadmium (Cd), manganese (Mn), zinc (Zn), and copper (Cu) on liver function. Liver function was determined by detecting the level of alanine aminotransferase (ALT), aspartate aminotransferase (AST), and total bilirubin (TBIL) in the serum. The plasma concentrations of Sr, Pb, Cd, Mn, Zn, and Cu were measured using inductively coupled plasma-mass spectrometry (ICP-MS). The sociodemographic characteristics, lifestyle factors, and history of disease were assessed by questionnaire. Then the association between plasma Sr and liver function was analyzed by multiple linear regression and Bayesian kernel machine Regression (BKMR). A positive correlation was found between Sr and ALT and Sr and AST [ALT (β = 15.06, 95% confidence interval (CI) 8.37, 21.75, P < 0.05), AST (β = 9.92, 95% CI 3.72, 16.11, P < 0.05)] by multiple linear regression model. According to the BKMR, Sr and Pb, as well as Sr and Cu, had synergistic effects on liver function. Our findings suggest that Sr may be an independent risk factor for liver injury and has a synergistic relationship with Cu and Pb.
      PubDate: 2024-02-01
       
  • Coexposure to Multiple Metals and the Risk of Abnormal Blood Pressure in
           Chinese Children

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      Abstract: Abstract While associations between metal exposure and adult blood pressure (BP) have been widely explored, those between multimetal coexposure and children’s BP remain unclear. We aimed to assess the associations between multimetal coexposure and children’s BP. In this cross-sectional study, we recruited 1165 children aged 6–12 years from China’s heavy metal-polluted areas. Inductively coupled plasma mass spectrometry (ICP‒MS) was used to measure urinary levels of 17 metals (titanium, vanadium, chromium, iron, strontium, cobalt, nickel, copper, arsenic, selenium, rubidium, cadmium, molybdenum, antimony, thallium, lead, and uranium) in children. Least absolute shrinkage and selection operator (LASSO) penalized regression models, multimetal-adjusted logistic or linear regression models and Bayesian kernel machine regression (BKMR) models were used to evaluate the associations of multimetal coexposure with elevated BP (systolic BP and diastolic BP) in children. A total of 253 (21.7%) participants had abnormal BP. Urinary vanadium (V), selenium (Se) and titanium (Ti) were found to have greater effects on abnormal BP in children by LASSO regression. In the covariate-adjusted multimetal (V, Se and Ti) logistic regression models, the highest quartiles of urinary V, Ti and Se were associated with a 5.21 (95% CI: 2.29, 11.88)-, 2.66 (95% CI: 1.22–5.82)- and 0.20 (95% CI: 0.11–0.37)-fold risk of abnormal BP, compared with the lowest quartile. Covariate-adjusted multimetal linear regression analysis and BKMR regression analysis further found that urinary V was positively correlated and urinary Se was negatively correlated with children’s BP levels. Interaction analysis found that higher levels of urinary Se attenuated the effects of urinary V on children’s diastolic BP levels. Higher urinary V and Ti levels were risk factors for abnormal BP in children, and urinary Se was a protective factor.
      PubDate: 2024-02-01
       
  • Enrichment Mechanism and Health Risk Assessment of Fluoride in Groundwater
           in the Oasis Zone of the Tarim Basin in Xinjiang, China

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      Abstract: Abstract Groundwater is crucial water supply source in the Tarim Basin in Xinjiang. Due to the existence of high-fluoride groundwater, the shortage of water resources is more prominent, which brings challenge to safe groundwater supply. A total of 1326 groundwater samples were collected in the oasis zone to investigate the sources, driving factors, and health hazards of high-fluoride groundwater. Results showed that the high-fluoride groundwater was widely distributed around the edge of the oasis belt. The exceeding rates of fluoride in single-structure phreatic water (SSPW), phreatic water in confined groundwater area (PWCGA), shallow confined groundwater (SCG), and deep confined groundwater (DCG) were 31.6%, 51.5%, 35.0%, and 14.8%, respectively. Fluoride concentration showed a gradually decreasing trend from PWCGA to DCG. High-fluoride concentrations were closely related to weakly alkaline groundwater environment, high HCO3−, high Na+, and low Ca2+. The continuous dissolution of fluoride-containing minerals such as fluorite was the main driving mechanism of high-fluoride groundwater. Competitive adsorption of OH−/HCO3− and F−, evaporation concentration, precipitation of calcium-containing minerals, and cation exchange were conducive to the enrichment of groundwater fluoride. Human activities such as irrigation of high-fluoride groundwater also had a certain degree of effect on the shallow high-fluoride groundwater formation. Drinking high-fluoride groundwater would cause non-carcinogenic risks to different populations, health risks of fluoride through drinking water were increased with decreasing age. To effectively utilize groundwater resources and provide healthy drinking water for local residents, it is recommended to adopt the measures of water supply with different quality and fluoride reduction.
      PubDate: 2024-02-01
       
  • Recycled Household Ash in Rice Paddies of Bangladesh for Sustainable
           Production of Rice Without Altering Grain Arsenic and Cadmium

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      Abstract: Abstract In Bangladesh most agronomic biomass (straw, husk, dried dung) is burnt for domestic cooking use. Consequently, the soil is continuously stripped of mineral nutrients and carbon (C) substrate. Here we investigate if recycling of household ash (ash) as fertilizer can sustainably improve soil fertility as well as minimise accumulation of toxic elements (As, Cd) in rice grain. Large scale field trials across two geographic regions (Barind, Madhupur) and two seasons (wet, dry) and with application of 3 fertiliser treatments (NPKS, ash, NPKS + ash) were conducted. At the end of each season, the impact of region*season*treatment on soil microbial comunities, rice yield, and grain quality (As, Cd, nutrient elements) was assessed. When compared to conventional field application rates of NPKS (control), application of ash boosted rice yield by circa. 20% in both regions during wet and dry season, with no effect on rice grain carcinogenic inorganic arsenic (iAs), dimethylarsonic acid (DMA) or cadmium (Cd), but with potential to increase zinc (Zn). For soil microbial communities, a significant region and season effect as well as correlation with elements in rice grain was observed, amongst these Cd, Zn, iAs and DMA. This study illustrates that application of ash can reduce the requirement for expensive chemical fertiliser, whilst at the same time increasing rice yield and maintaining grain quality, making farming in Bangladesh more sustainable and productive. The study also implies that the combined impact of region, season, and soil microbes determines accumulation of elements in rice grain.
      PubDate: 2024-02-01
       
  • Potential Factors Associated with the Blood Metal Concentrations of
           Reproductive-Age Women in Taiwan

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      Abstract: Exposure of reproductive-age women to toxic trace elements warrants attention because of their negative effects. This study aimed to investigate the levels of arsenic (As), cadmium (Cd), mercury (Hg), chromium (Cr), and lead (Pb) in the blood of 837 Taiwanese childbearing-age women and establish the correlation between their dietary pattern and heavy metal concentration. The concentrations of Cd and Pb were significantly higher in nonpregnant women than in pregnant women (Cd: 2.41 µg/L vs. 2.12 µg/L; Pb: 0.83 µg/dL vs. 0.73 µg/dL), whereas the concentration of Cr was significantly lower in nonpregnant women than in pregnant women (Cr: 0.98 µg/L vs. 1.05 µg/L). Otherwise, no significant differences in As (9.02 µg/L vs. 9.51 µg/L) and Hg (3.71 µg/L vs. 3.79 µg/L) were found between the nonpregnant and pregnant women. Overall, the blood metal concentrations of Cd and Hg showed a decreasing trend in the different pregnancy stages. The levels of As and Hg were highly correlated with seafood intake. Finally, lifestyle habits, such as burning incense usage and Chinese herb intake may contribute to metal accumulation in maternal or reproductive-age women. Preventive risk communication and educational strategies should be applied to these subgroups in view of food safety and public health concern. Graphical
      PubDate: 2024-02-01
       
 
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  Subjects -> ENVIRONMENTAL STUDIES (Total: 913 journals)
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POLLUTION (31 journals)

Showing 1 - 27 of 27 Journals sorted by number of followers
Water, Air, & Soil Pollution     Open Access   (Followers: 22)
Aerosol Science and Technology     Hybrid Journal   (Followers: 15)
Water, Air, & Soil Pollution : Focus     Hybrid Journal   (Followers: 7)
Journal of Hazardous, Toxic, and Radioactive Waste     Full-text available via subscription   (Followers: 6)
Journal of Limnology     Open Access   (Followers: 6)
Archives of Environmental Protection     Open Access   (Followers: 5)
Journal of Energy, Environment & Carbon Credits     Full-text available via subscription   (Followers: 5)
Greenhouse Gases : Science and Technology     Hybrid Journal   (Followers: 4)
Journal of the Air & Waste Management Association     Hybrid Journal   (Followers: 4)
Open Journal of Air Pollution     Open Access   (Followers: 4)
Jurnal Pengendalian Pencemaran Lingkungan     Open Access   (Followers: 4)
Ciencias Marinas     Open Access   (Followers: 3)
Energy and Emission Control Technologies     Open Access   (Followers: 3)
Atmospheric Pollution Research     Hybrid Journal   (Followers: 2)
Aerosol Science and Engineering     Hybrid Journal   (Followers: 2)
Journal of Polymers and the Environment     Hybrid Journal   (Followers: 1)
Pollution     Open Access   (Followers: 1)
Emerging Contaminants     Open Access   (Followers: 1)
Current Pollution Reports     Hybrid Journal   (Followers: 1)
Exposure and Health     Hybrid Journal   (Followers: 1)
Environmental Chemistry and Ecotoxicology     Open Access   (Followers: 1)
Microplastics and Nanoplastics     Open Access   (Followers: 1)
Environmental Pollutants and Bioavailability     Open Access   (Followers: 1)
Journal of Air Pollution and Health (رتبه علمی- پژوهشی)     Open Access  
Revista Internacional de Contaminación Ambiental     Open Access  
Latin American Journal of Aquatic Research     Open Access  
Hidrobiológica     Open Access  
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JournalTOCs
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
 


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