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Environmental Geochemistry and Health

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https://read.qxmd.com/read/30783820/air-quality-and-pm-10-associated-poly-aromatic-hydrocarbons-around-the-railway-traffic-area-statistical-and-air-mass-trajectory-approaches
#1
Nazrul Islam, Shahadev Rabha, Luis F O Silva, Binoy K Saikia
Diesel engine railway traffic causes atmosphere pollution due to the exhaust emission which may be harmful to the passengers as well as workers. In this study, the air quality and PM10 concentrations were evaluated around a railway station in Northeast India where trains are operated with diesel engines. The gaseous pollutant (e.g. SO2 , NO2 , and NH3 ) was collected and measured by using ultraviolet-visible spectroscopy. The advanced level characterizations of the PM10 samples were carried out by using ion chromatography, Fourier-transform infrared, X-ray diffraction, inductively coupled plasma optical emission spectrometry , X-ray photoelectron spectroscopy, field-emission scanning electron microscopy with energy-dispersive spectroscopy, and high-resolution transmission electron microscopy with energy-dispersive spectroscopy techniques to know their possible environmental contaminants...
February 19, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30778789/prediction-of-cd-toxicity-to-daphnia-magna-in-the-mixture-of-multi-walled-carbon-nanotubes-and-kaolinite
#2
Suyeon Lee, Junyub Kim, Injeong Kim, Minhee Jang, Yusik Hwang, Sang Don Kim
In this study, we investigated cadmium toxicity created by adsorption kinetics in several mixtures containing two types of multi-walled carbon nanotubes (COOH-MWCNT and NH2 -MWCNT) and natural kaolinite. Characteristics of two types of MWCNTs were measured by zeta potential and ATR FT-IR graphs and TEM images. The solution of CNTs and kaolinite was tested to study Cd adsorption kinetics and mechanisms of differentiation-associated toxicity using Daphnia magna in a binary system (Cd-MWCNTs and Cd-kaolinite) and a ternary system (Cd-MWCNTs-kaolinite)...
February 18, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30778788/the-geochemistry-of-geophagic-material-consumed-in-onangama-village-northern-namibia-a-potential-health-hazard-for-pregnant-women-in-the-area
#3
Selma N Kambunga, Carla Candeias, Israel Hasheela, Hassina Mouri
Ingestion of geophagic materials might affect human health and induce diseases by different ways. The purpose of this study is to determine the geochemical composition of geophagic material consumed especially by pregnant women in Onangama Village, Northern Namibia and to assess its possible health effects. X-ray fluorescence and inductively coupled plasma mass spectrometry were used in order to determine the major, and trace elements as well as anions concentrations of the consumed material. The geochemical analysis revealed high concentrations of aluminium (Al), calcium (Ca), iron (Fe), magnesium (Mg), manganese (Mn), potassium (K), sodium (Na), and silica (Si); and trace elements including arsenic (As), chromium (Cr), mercury (Hg), nickel (Ni) and vanadium (V) as well as sulphate (SO4 2- ), nitrate (NO3 - ), and nitrite (NO2 - ) anions comparing to the recommended daily allowance for pregnant women...
February 18, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30778787/spatial-analysis-of-chromium-in-southwestern-part-of-iran-probabilistic-health-risk-and-multivariate-global-sensitivity-analysis
#4
Mohamad Sakizadeh, Eisa Ahmadpour, Fatemeh Mehrabi Sharafabadi
This study was concerned with chromium as a potential carcinogenic contaminant in 64 wells located in five aquifers, southwest of Iran. A probabilistic health risk assessment indicated a high risk to the local residents including adults and children in the study area. A sequential sensitivity analysis and a novel approach known as multivariate global sensitivity analysis using both principal component analysis and B-spline were applied to investigate the behavior of health risk model along time considering four independent input parameters in the risk equation...
February 18, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30771113/risk-based-prediction-of-metal-toxicity-in-sediment-and-impact-on-human-health-due-to-consumption-of-seafood-saccostrea-cucullata-found-in-two-highly-industrialised-coastal-estuarine-regions-of-eastern-india-a-food-safety-issue
#5
Shreemayee Satapathy, Chitta Ranjan Panda, Bhabani Sankar Jena
Estuarine ecosystems of the Bay of Bengal, India, are considered as the most productive environment, which have been persistently threatened by substantial anthropogenic activity. This study aims to investigate the metal contamination in the sediment of two estuaries and possible biomagnifications in the indigenous edible oyster Saccostrea cucullata and related health hazards due to its consumption. The accumulative ecological risks indicated that the sediment is moderate to strongly contaminated with cadmium and lead...
February 15, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30767095/elevated-level-of-arsenic-negatively-influences-nifh-gene-expression-of-isolated-soil-bacteria-in-culture-condition-as-well-as-soil-system
#6
Arindam Chakraborty, Atif Aziz Chowdhury, Kiron Bhakat, Ekramul Islam
Comprehensive studies on the effect of arsenic (As) on free-living diazotrophs that play a crucial role in soil fertility by nitrogen fixation are still scanty. Here, we isolated three free-living bacteria from rice field with potential nitrogen-fixing ability and investigated the impact of As on their nifH gene expression and extracellular polysaccharide (EPS) production in culture condition and soil system. 16S rRNA sequence analysis showed that the isolated bacteria were affiliated to β-Proteobacteria, γ-Proteobacteria and Firmicutes...
February 14, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30761418/addressing-climate-change-through-a-market-mechanism-a-comparative-study-of-the-pilot-emission-trading-schemes-in-china
#7
Yu Zhou, Jingjing Jiang, Bin Ye, Yumeng Zhang, Jing Yan
The questions of how to mitigate climate change and its impact on human health are currently high on the Chinese agenda for future development. The emission trading scheme (ETS) has become one of China's most important instruments to address climate change through a market mechanism. In the wake of the evolution from regional pilots to a nationwide scheme, it is inevitable to be confronted with tremendous political-economic-institutional challenges. To facilitate a smooth start-up of the upcoming nationwide ETS, this study provides a systematic overview of seven ETS pilots, involving the detailed comparison of ETS design and the in-depth evaluation of market performance, both internal and external performance, based on trading data...
February 14, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30739235/modeling-primary-and-secondary-fractionation-effects-and-atmospheric-transport-of-polychlorinated-biphenyls-through-single-source-emissions
#8
Song Cui, Qiang Fu, Chongguo Tian, Zulin Zhang, Rupert Hough, Zhenxing Shen, Jianmin Ma, Lihui An, Yi-Fan Li
The Chinese Gridded Industrial Pollutants Emission and Residue Model (ChnGIPERM) was used to investigate potential fractionation effects and atmospheric transport of polychlorinated biphenyls (PCBs) derived from single-source emissions in China. Modeling the indicative PCBs (CB28, CB101, CB153, and CB180) revealed spatiotemporal trends in atmospheric transport, gas/particle partitioning, and primary and secondary fractionation effects. These included the inference that the Westerlies and East Asian monsoons affect atmospheric transport patterns of PCBs by influencing the atmospheric transport time (ATT)...
February 10, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30730016/correction-to-spatial-distribution-of-heavy-metals-and-their-potential-sources-in-the-soil-of-yellow-river-delta-a-traditional-oil-field-in-china
#9
Xiongyi Miao, Yupei Hao, Fawang Zhang, Shengzhang Zou, Siyuan Ye, Zhouqing Xie
In the original publication of the article, the sixth author name "Zhouqing Xie" has been misspelt. The correct name is given in this correction. The original version of this article was revised.
February 7, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30721388/ecological-and-health-risks-of-soil-and-grape-heavy-metals-in-long-term-fertilized-vineyards-chaharmahal-and-bakhtiari-province-of-iran
#10
Mohsen Mirzaei, Safar Marofi, Eisa Solgi, Mozhgan Abbasi, Roohollah Karimi, Hamid Reza Riyahi Bakhtyari
Heavy metal pollution in food-producing ecosystems resulting from long-term fertilizing and other agricultural practices is causing major concern due to its health risk potential for human and other organisms. This study was designed to investigate heavy metal concentrations (Cu, Zn, Pb, Cr and Cd) and assess their ecological risk using contamination factor (Cf), pollution load index (PLI) and ecological risk index. Health risk assessment (HRA) was also estimated by investigating non-carcinogenic and carcinogenic risks of soil via oral ingestion, dermal contact, inhalation, and health risk of grape consumption...
February 5, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30719612/health-risks-from-pahs-and-potentially-toxic-elements-in-street-dust-of-a-coal-mining-area-in-india
#11
R E Masto, M K Singh, T K Rout, A Kumar, S Kumar, J George, V A Selvi, P Dutta, R C Tripathi, N K Srivastava
Polycyclic aromatic hydrocarbons (PAHs) and potentially toxic elements (PTEs) (Ba, Zn, Pb, Cu, Cr, Ni, As, Co) were determined in the road dusts of a coal mining area (Dhanbad, India) to assess their content and potential human health risks. Dust samples were collected from sign boards of the heavy traffic road connecting Dhanbad and Sindri. The total PAHs (∑PAHs, all values in mg/kg) content in the road dust samples varied from 3.98 to 13.1, with carcinogenic PAHs content of 14.8-34.4% of the ∑PAHs. Phenanthrene (2...
February 4, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30706204/environmental-and-health-impacts-of-geochemical-cycles-of-persistent-toxic-substances-in-food-productions-systems-editorial-to-the-special-issue-for-the-8th-international-conference-on-geochemistry-in-the-topics-sub-tropics-geotrop-2017
#12
EDITORIAL
https://read.qxmd.com/read/30701355/biogeochemical-characterization-of-surface-waters-in-the-aljustrel-mining-area-south-portugal
#13
Ana T Luís, José António Grande, Nuno Durães, José Miguel Dávila, María Santisteban, Salomé F P Almeida, Aguasanta M Sarmiento, María Luisa de la Torre, Juan Carlos Fortes, Eduardo Ferreira da Silva
Aljustrel mining area (South Portugal) is a part of the Iberian Pyrite Belt and encloses six sulfide mineral masses. This mine is classified of high environmental risk due to the large tailings' volume and acid mine drainage (AMD)-affected waters generated by sulfides' oxidation. The use of biological indicators (e.g., diatoms) revealed to be an important tool to address the degree of AMD contamination in waters. Multivariate analysis has been used as a relevant approach for the characterization of AMD processes...
January 30, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30689095/polybrominated-diphenyl-ethers-pbdes-in-soil-and-dust-from-plastic-production-and-surrounding-areas-in-eastern-of-china
#14
REVIEW
Jing Xu, Wangyang Qian, Juying Li, Xiaofei Zhang, Jian He, Deyang Kong
Polybrominated diphenyl ethers (PBDEs) are a class of organic pollutants. They are used as flame retardants that caused worldwide environmental concern. This study investigated the occurrence of PBDEs in soils and dusts from three plastic manufacture plants and surrounding areas in Eastern China. A total of 13 PBDE congeners were detected using gas chromatography-mass spectrometer (electron impact ionization). The total concentrations of PBDEs range from 2.21 to 558, 19.7-4916, and 8.70-18,451 ng/g dry weight in the soils of three sampling areas, with mean of 1004 ng/g d w; in dusts, the concentrations range from 7240 to 10,469, 684-4482, and 193-3989 ng/g d w, with an overall mean of 3619 ng/g d w...
January 28, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30689094/quantitative-assessment-of-ecological-compensation-for-groundwater-overexploitation-based-on-emergy-theory
#15
Cuimei Lv, Minhua Ling, Zening Wu, Xi Guo, Qianqian Cao
Ecological compensation is an important economic tool for the control and management of ecological and environmental problems. The accurate assessment of the amount of compensation is the key factor in the implementation of ecological compensation schemes. However, due to the complex and various ecological and environmental problems caused by groundwater overexploitation, there is no scientific quantitative method. Emergy theory is a new method to quantitatively study the relationship between environmental resources and social economy...
January 28, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30673964/characteristics-of-metal-contamination-in-paddy-soils-from-three-industrial-cities-in-south-korea
#16
In-Gyu Cho, Min-Kyu Park, Hye-Kyung Cho, Jin-Woo Jeon, Sung-Eun Lee, Sung-Deuk Choi
Paddy soil contamination is directly linked to human dietary exposure to toxic chemicals via crop consumption. In Korea, rice paddy fields are often located around industrial complexes, a major anthropogenic source of metals. In this study, rice paddy soils were collected from 50 sites in three industrial cities to investigate the contamination characteristics and ecological risk of metals in the soils. The cities studied and their major industries are as follows: Ulsan (petrochemical, nonferrous, automobile, and shipbuilding), Pohang (iron and steel), and Gwangyang (iron and steel, nonmetallic, and petrochemical)...
January 23, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30671691/is-using-nanosilver-mattresses-pillows-safe-a-review-of-potential-health-implications-of-silver-nanoparticles-on-human-health
#17
REVIEW
Sriram Prasath, Kavitha Palaniappan
Human exposure to engineered nanoparticles has become inevitable in today's extensive commercial use and large-scale production of engineered nanoparticles. Even though several studies have characterised the exposure to nanomaterials during wakeful state (related to occupational exposures and exposures from commercially available particles), very few studies on human exposure during sleep exist. As the study of exposure to all possible nanomaterials during sleep is extensive, this study focuses on exposure to specifically silver nanoparticles which are present in beddings and mattresses...
January 22, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30671690/mineralogical-compositional-and-isotope-characterization-of-human-kidney-stones-urolithiasis-in-a-sri-lankan-population
#18
Rohana Chandrajith, Anushka Weerasingha, Kusala M Premaratne, Dhanushke Gamage, Anuruddha M Abeygunasekera, Michael M Joachimski, Atula Senaratne
In order to understand the processes of stone formation, compositional, spectroscopic, mineralogical and crystallographic characteristics of human urinary stones collected from patients in Sri Lanka were investigated in detail. The data showed that the majority of urinary calculi were calcium oxalate, either whewellite or weddellite. Other solid phases of stones were composed of struvite, uricite and hydroxylapatite. However, mixed compositions were common except for whewellite stones which occur frequently in pure form...
January 22, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30661141/seasonal-and-spatial-contamination-statuses-and-ecological-risk-of-sediment-cores-highly-contaminated-by-heavy-metals-and-metalloids-in-the-xiangjiang-river
#19
Huan Li, Liyuan Chai, Zhihui Yang, Qi Liao, Yi Liu, Bin Ouyang
To reveal seasonal and spatial variations of heavy metals and metalloids (HMMs) in sediment of the Xiangjiang River, a total of 24 water and 649 sediment samples were collected from six sampling stations in the Songbai section of the river which had been polluted by HMMs for 100 years. Their contamination statuses and ecological risk were determined by enrichment factor (EF), geo-accumulation index (Igeo ), pollution load index (PLI), and mean probable effect concentration quotients (mPECQs) analyses. The results revealed a unique seasonal distribution of metals in the sampling stations: The highest concentrations were revealed in the dry seasons (autumn and winter) and the lowest during the wet seasons (spring and summer)...
January 19, 2019: Environmental Geochemistry and Health
https://read.qxmd.com/read/30648198/a-cross-sectional-survey-based-on-blood-vocs-hematological-parameters-and-urine-indicators-in-a-population-in-jilin-northeast-china
#20
Xiaocui Li, Yuanyuan Guo, Xiuling Song, Yinghua He, Huiwen Zhang, Hao Bao, Xinxin Li, Yushen Liu, Yue Zhai, Juan Wang, Kun Xu, Juan Li
The objective of this study was to examine whether long-term exposure to low-dose volatile organic compounds (VOCs) will have an effect on the health of non-occupational population. A total of 499 non-occupational participants aged more than 18 that live around Jilin Petrochemical Industrial Zone were chosen by stratified cluster random sampling. Their blood VOCs' levels, hematological parameters and urine indicators together with detailed questionnaire data were used to find possible relationships using binary logistic regression analysis...
January 16, 2019: Environmental Geochemistry and Health
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