Assessment of potentially toxic elements in atmospheric dust and associated health risks in Zahedan City, Iran
In this study, we investigated the concentration, sources, and human health risk assessment of PTEs in 88 monthly atmospheric dust samples collected between December 2020 and October 2021 using inductively coupled plasma mass spectrometry. The results showed that the concentrations of PTEs in atmospheric dust followed the descending order of Mn  >  Zn >  Ba >  Sr >  Cr >  V >  Ni >  Cu >  Pb >  Co >  As >  Mo >  Cd. The calculated enrichment factors revealed significant enrichment for As >  Zn, moderate enrichment Pb >  Ni, de...
Source: Environmental Geochemistry and Health - July 10, 2023 Category: Environmental Health Source Type: research

Dynamic characteristics of soil heavy metals and microbial communities under moss cover at different successional stages in a manganese mining area
AbstractThe mining and smelting of manganese ores and the accumulation of slag not only pollute the environment and increase the threat to biodiversity, but also adversely affect the health of human and other organisms. Therefore, it ’s important to study the restoration of manganese mining area. Since mosses play an irreplaceable role in the ecological restoration of mine sites, this study is carried out in a slag heap area that has been in continuous operation for about 50 years, and spatial variation is used instead of tem poral variation to study the diversity of moss plants, the characteristics of soil heavy metal ...
Source: Environmental Geochemistry and Health - July 9, 2023 Category: Environmental Health Source Type: research

Accumulation, potential risk and source identification of toxic metal elements in soil: a case study of a coal-fired power plant in Western China
AbstractCoal-fired power plants (CPP) usually release massive numerous amounts of potentially toxic metal(loid)s (PTMs) into nearby ecosystems. There have been relatively few studies targeted on the ecological influences of PTMs related to the CPP in arid area. In this work, the distribution pattern, source apportionment and environmental risks of As, Cd, Cr, Hg, Pb and a couple of seldom monitored PTMs (Se, Zn, Co, Cu, Fe, Mn and Ni) in the soils near a coal electricity integration base were investigated in Hami, a city in northwestern China. Nemerow synthesis pollution index, geo-accumulation index and ecological risk in...
Source: Environmental Geochemistry and Health - July 8, 2023 Category: Environmental Health Source Type: research

Impact assessment of air pollutants and greenhouse gases on urban heat wave events in the Beijing –Tianjin–Hebei region
This study analyzed the prevention of air pollution and the strategies of emission reduction based on decision trees (DT), random forests (RF), and extreme random trees (ERT). Additionally, we quantitatively investigated the contribution rate of atmospheric particulate pollutants and greenhouse gases to urban heat wave occurrences by combining numerical models and big data mining technology. This study focuses on changes in the urban environment and climate. The main findings of this study are as follows.  The average concentrations of PM2.5 in the northeast of Beijing –Tianjin–Hebei in 2020 were 7.4%, 0.9%, and 9.6% ...
Source: Environmental Geochemistry and Health - July 7, 2023 Category: Environmental Health Source Type: research

Probabilistic human health risk assessment and Sobol sensitivity reveal the major health risk parameters of aluminum in drinking water in Shiraz, Iran
In this study, we present a probabilistic human health risk assessment (HRA) for non-cancerogenic risks, with Sobol sensitivity analysis, to vet the concern of increased health risk from Al in drinking water in Shiraz, Iran, for children, adolescents, and adults. The results show that the concentration of Al in the drinking water in Shiraz varies significantly between winter and summer seasons and varies considerably spatially across the city irrespective of the season. However, all concentrations are below the guideline concentration. The HRA results show that the highest health risk is for children in summer, and the low...
Source: Environmental Geochemistry and Health - July 6, 2023 Category: Environmental Health Source Type: research

Combined assessment of health hazard and odour impact of soils at a contaminated site: a case study on a defunct pharmaceuticals factory in China
In this study, hazardous and odorous pollutants in the soil were assessed for a large site that was previously used for production of pharmaceuticals to determine the degree and characteristics of soil contamination at pharmaceutical production sites, for undertaking rational remediation measures. The main hazardous pollutants at the study site were triethylamine,n-butyric acid, benzo(a)pyrene (BaP),N-nitrosodimethylamine (NDMA), dibenzo(a,h)anthracene (DBA), total petroleum hydrocarbons (C10 –C40) (TPH), and 1,2-dichloroethane; TEA, BA, and isovaleric acid (IC) were the main odorants. As the type and distribution of haz...
Source: Environmental Geochemistry and Health - July 6, 2023 Category: Environmental Health Source Type: research

Characteristics, sources and health risk assessment of trace metals and polycyclic aromatic hydrocarbons in PM2.5 from Hefei, China
AbstractTrace metals (TRs) and polycyclic aromatic hydrocarbons (PAHs) are major toxic components of fine particulate matter (PM2.5) and related to various health adverse outcomes. The study aims to get a better understanding of the contents, sources and risks of PM2.5-bounded TRs and PAHs in Hefei, China, during the period of 2019 –2021. We collected 504 samples and measured twelve TRs and sixteen priority PAHs by inductively coupled plasma mass spectrometry and high-performance liquid chromatography. The annual mass concentrations of PM2.5 was fluctuated in the year of 2019 –2021 at 50.95, 47.48 and 59.38 μg/m3, wi...
Source: Environmental Geochemistry and Health - July 5, 2023 Category: Environmental Health Source Type: research

Contamination of As, Cd, Cr, Hg and Pb in soils in Arica commune (Chile)
The objectives of this study are (a) to determine the background concentration of As, Cd, Cr, Hg and Pb in Arica commune; (b) to determine the degree of soil contamination in Arica city using environmental indices and (c) to evaluate the human health risk of these potentially toxic elements. In the rural area of Arica commune, 169 samples were taken and 283 samples were taken in the urban area of Arica city. Total concentrations of Cd, Pb and Cr were determined by EPA 3052 and EPA 6010 C. Mercury was determined by EPA 7473. Arsenic was determined by EPA 7061A. The available concentrations of As and Cr were determined by di...
Source: Environmental Geochemistry and Health - July 5, 2023 Category: Environmental Health Source Type: research

Toxicity, physiological, and morphological alterations of Indian camphorweed (Pluchea indica) in response to excess copper
AbstractIndian camphorweed (Pluchea indica (L.) Less.) is used as herbal tea due to the presence of volatile aromatic oils and several phytochemical compounds. The aim of this study was to assess the impact of copper (Cu) contamination on the physiology and morphology ofP. indica, and the health risks associated with its consumption as tea. The cuttings ofP. indica were subjected to 0  mM (control), 5 mM (low Cu), and 20 mM (excess Cu) of CuSO4 treatments for 1, 2, and 4  weeks. Thereafter, Cu contamination as well as physiological and morphological parameters were assessed. Cu accumulation was higher in the root tissu...
Source: Environmental Geochemistry and Health - July 4, 2023 Category: Environmental Health Source Type: research

The effects of nutrient loading from different sources on eutrophication in a large shallow lake in Southeast China
This study aimed to estimate the phosphorus and nitrogen loads to the lake, exploring their sources and their ecologic effect s using in situ observation and the export coefficient model. Our results showed that the pollution loads of total phosphorus (TP) and total nitrogen (TN) were 2.390 and 46.040 t/year, respectively, most of which were derived from the water diversion (TP 45.7%, TN 29.2%) and non-point source (TP 30. 2%, TN 41.6%). The TN input was the highest in East river (3.557 kg/d), followed by Red river (2.524 kg/d). During the wet season, the input of TP and TN increased by 14.6 and 18.7 times, respectively,...
Source: Environmental Geochemistry and Health - July 3, 2023 Category: Environmental Health Source Type: research

Ambient carbon monoxide and the risk of cardiovascular disease emergency room visits: a time-series study in Lanzhou, China
In conclusion, the study showed that exposure to ambient CO may increase the risks of ERVs for total and cause-specific CVD. Besides, CO-ERVs associations may vary by gender and age. (Source: Environmental Geochemistry and Health)
Source: Environmental Geochemistry and Health - July 3, 2023 Category: Environmental Health Source Type: research

Source apportionment of heavy metal(loid)s in sediments of a typical karst mountain drinking-water reservoir and the associated risk assessment based on chemical speciations
AbstractAs important place for water storage and supply, drinking-water reservoirs in karst mountain areas play a key role in ensuring human well-being, and its water quality safety has attracted much attention. Source apportionment and ecological risks of heavy metal(loid)s in sediments of drinking-water reservoir are important for water security, public health, and regional water resources management, especially in karst mountain areas where water resources are scarce. To expound the accumulation, potential ecological risks, and sources of heavy metal(loid)s in a drinking-water reservoir in Northwest Guizhou, China, the ...
Source: Environmental Geochemistry and Health - July 2, 2023 Category: Environmental Health Source Type: research

Uptake, accumulation, toxicity, and interaction of metallic-based nanoparticles with plants: current challenges and future perspectives
This study was intended to  be an unambiguous assessment including current knowledge on NPs uptake, accumulation, and translocation in higher plants. Furthermore, it will also provide sufficient knowledge to the scientific community to understand the metallic NPs-induced inhibitory effects and mechanisms involved within plan ts.Graphical abstract (Source: Environmental Geochemistry and Health)
Source: Environmental Geochemistry and Health - June 30, 2023 Category: Environmental Health Source Type: research

Spatiotemporal variations of 2,4-dichlorophenoxy acetic acid with the role of sugarcane industry and related human health risk assessments in the Shadegan International Wetland
This study aimed to determine the ecological risks assessment in fish, plant tissues, and trends in 2,4-D urinary biomarker concentration in humans of Shadegan International wetland, Iran. Sampling was carried out from three areas: freshwater, saltwater, and bra ckish water. The average concentration of 2,4-D at point 38, taken from the wetland’s northern parts, was 15.73 µg/L. In the lower regions, it reached 326 µg/L at point 25. From points 37 to 16, it was higher than the international standard. The increasing trend of 2,4-D concentration was obse rved from point 36 to the middle of the wetland. The non-carcinoge...
Source: Environmental Geochemistry and Health - June 30, 2023 Category: Environmental Health Source Type: research

Application of pesticide in paddy fields: a Southeast Asia case study review
This study assessed pesticide innovation reported between 1945 and 2021 for a better understanding of the utilisation of the chemicals over time. The pesticides assessed in this study were classified based on their chemical compounds, such as organochlorines, organophosphates, carbamates, and pyrethroid. This review could provide a comprehensive understanding of the interactions between pesticides and the environment and their impacts on non-targeted organisms. (Source: Environmental Geochemistry and Health)
Source: Environmental Geochemistry and Health - June 29, 2023 Category: Environmental Health Source Type: research