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Environmental Geochemistry and Health

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https://www.readbyqxmd.com/read/30229408/temperature-inversion-and-air-pollution-relationship-and-its-effects-on-human-health-in-hanoi-city-vietnam
#1
Thi Thuy Trinh, Thi Tham Trinh, Thi Trinh Le, The Duc Hanh Nguyen, Binh Minh Tu
This study aimed to investigate the effects of temperature inversions on the concentration of some pollutants in the atmosphere in Hanoi City, Vietnam, during the period from 2011 to 2015. This work also aimed to evaluate relationships between the thermal inversion and health effects that are associated with air pollution. During this period, the temperature inversions were most frequently presenting from November to March in Hanoi City. Air quality data was gathered from air quality monitoring stations located in the study area...
September 18, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30225731/evaluation-of-the-diagnostic-ratios-of-adamantanes-for-identifying-seriously-weathered-spilled-oils-from-simulated-experiment-and-actual-oil-spills
#2
Bin Han, Li Zheng, Qian Li, Faxiang Lin, Yu Ding
The composition and physical properties of spilled oil have great changes during the seriously weathering process. It brings great difficulties to the source identification of oil spill. So the stable and trustworthy diagnostic ratios (DRs) for accurate identification of severely weathered spilled oils are very important. The explosion of Sinopec pipeline happened on November 22, 2013 at Qingdao, China. Local beaches at Jiaozhou Bay were polluted by spilled oils. We have collected original spilled oil samples from an area free from human interference near the oil leakage point after the accident...
September 17, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30225730/analysis-of-groundwater-variation-in-the-jinci-spring-area-shanxi-province-china-under-the-influence-of-human-activity
#3
Cuimei Lv, Minhua Ling, Zening Wu, Pan Gu, Xi Guo, Danyang Di
Jinci Spring is one of the most famous karst spring in Northern China and is the main drinking and irrigation water source of Taiyuan city, Shanxi Province. It has special significance in terms of humanities and water resources. Because of the continuous over-exploitation of groundwater, the water level of groundwater has been decreased significantly. The flow of Jinci Spring has decreased year by year since the 1970s, and in 1994 it cut off completely. The flow cutoff has brought huge losses to the local economy and negatively impacted the ecological environment...
September 17, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30225729/occurrence-and-fate-of-ppcps-in-typical-drinking-water-treatment-plants-in-china
#4
Wenjie Fu, Jing Fu, Xiaoyan Li, Bing Li, Xiaomao Wang
In this study, the occurrence and removal of twenty-nine pharmaceuticals and personal care products (PPCPs) in two water treatment plants (WTPs) in China were investigated. WTP1 employed ozonation and granular active carbon (GAC) filtration after coagulation and sedimentation, while WTP2 applied anthracite and GAC filtration instead. In the influent, six and four selected PPCPs with total concentrations of 554.97 and 12.94 ng/L were detected in WTP1 and WTP2, respectively (in October), among which, sulfamethoxazole and erythromycin were detected with highest concentrations due to their widely used as both human and veterinary medicines...
September 17, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30225728/environmental-impact-assessment-of-uranium-exploration-and-development-on-indigenous-land-in-labrador-canada-a-community-driven-initiative
#5
Atanu Sarkar, Derek H C Wilton, Erica Fitzgerald, Abhishek Sharma, Abhinav Sharma, Akshay Jinka Sathya
There is hardly any study on environmental impacts of uranium exploration and mining development prior to actual mining activities. Rather, the majority of the literature addresses the environmental impacts of either ongoing or decommissioned mines. The objective of the study was to measure the possible radioactive contamination (total uranium and lead) in the local ecosystem surrounding an abandoned uranium development site on indigenous land in Labrador (Canada). Water (brook and ponds), soil/sediments (brook and ponds), plants (growing along the brook and pond shores), and local fish (trout) and clams from bays were collected from mine development site, downstream, and control sites...
September 17, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30220078/polycyclic-aromatic-hydrocarbons-pahs-in-agricultural-soils-from-ningde-china-levels-sources-and-human-health-risk-assessment
#6
Huang Zheng, Chengkai Qu, Jiaquan Zhang, Shakeel Ahmed Talpur, Yang Ding, Xinli Xing, Shihua Qi
Soil-bound polycyclic aromatic hydrocarbons (PAHs) in farmland are critical to human health. The level, composition, source, and cancer risk of sixteen PAHs in agricultural soil from Ningde, China, were investigated. The results indicated that the total concentrations of 16 PAHs ranged from 77.3 to 1188 ng g-1 , with a mean value of 406 ng g-1 . Five-ring PAHs were found to have the highest concentrations (148 ± 133 ng g-1 ), followed by four-ring (120 ± 101 ng g-1 ), three-ring (61.9 ± 54...
September 15, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30218256/contamination-assessment-and-health-risk-of-arsenic-exposure-to-stairway-dust-in-the-zinc-smelting-district-northeast-china
#7
Na Zheng, Yan Yu, Shengnan Hou, Sujuan Xu, Lin Tang, Xiaofeng Ji
Stairway dust samples were collected from residential communities in Huludao city to investigate population health risk of arsenic (As) exposure through stairway dust. ArcGIS software was used to analyze As spatial distribution in Huludao city. Hazard index was applied to assess health risk due to exposure to As in stairway dust. The results were that As concentrations ranged from 13.26 to 237.58 mg kg-1 , and the mean value was 59.64 mg kg-1 , which was seven times as high as the background value of Liaoning Province...
September 14, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30209637/ecological-and-human-health-risk-assessment-of-toxic-metals-in-street-dusts-and-surface-soils-in-ahvaz-iran
#8
Navid Ghanavati, Ahad Nazarpour, Benedetto De Vivo
This study aimed to examine the concentrations and environmental health risk of the potentially toxic metals including Pb, Zn, Cu, Cd, Cr, and As in street dusts and surface soils of Ahvaz, the capital of Khuzestan province, located in the southwest of Iran. To this end, a total of 81 street dusts and 96 surface soils were collected from Ahvaz urban areas. Toxic metals were measured by inductively coupled plasma-mass spectrometry and evaluated using enrichment factors, potential ecological risk index and human health risk assessment...
September 12, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30206754/lead-contamination-of-the-mining-and-smelting-district-in-mitrovica-kosovo
#9
Lunchakorn Prathumratana, Rokho Kim, Kyoung-Woong Kim
Lead contamination in topsoil of the mining and smelting area of Mitrovica, Kosovo, was investigated for total concentrations and chemical fractions by sequential extraction analysis, mineralogical fractions by X-ray diffraction (XRD) and scanning electron microscopy with energy-dispersive X-ray spectrometer (SEM-EDX). The study revealed that all samples contained Pb exceeding USEPA standard of 400 mg kg-1 . The highest total concentration of Pb (125,000 mg kg-1 ) was the soil from the former smelter. Sequential extraction results showed that the predominant form of Pb was associated with Fe-Mn oxide-bound fraction which ranged from 45...
September 11, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30203220/the-sources-and-chemical-content-of-edible-soil-sticks-sold-in-markets-in-tanzania-a-cross-sectional-analytical-study
#10
Charisma U Msoffe, Elias C Nyanza, Deborah S K Thomas, Ola Jahanpour, Deborah Dewey
Geophagy, or eating soil, is common in various countries including Tanzania. Studies have reported on the levels of different chemicals in consumed soil, some of which can be harmful to the health of individuals practicing geophagy. Dried soil sticks for eating, referred to as pemba, are commercially available in many markets in sub-Saharan Africa, but few studies have established the sources of the soils. The purpose of the current study was to: (1) systematically document the sources of the soils used in pemba commonly sold in regional markets throughout Tanzania using a global positioning system (GPS) to establish the supply chain flow of pemba to markets, and (2) assess the chemical element content of the soil sources for both water-extractable chemical element (WEC) and total chemical element (TC) contents...
September 10, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30203219/hydrogeochemical-characterization-and-evaluation-of-groundwater-quality-in-kangayam-taluk-tirupur-district-tamil-nadu-india-using-gis-techniques
#11
Sakthivel Duraisamy, Vennila Govindhaswamy, Karunanidhi Duraisamy, Srinivasamoorthy Krishinaraj, Anand Balasubramanian, Subramani Thirumalaisamy
The main objective of the present study is to evaluate the hydrogeochemical characteristics of groundwater and its suitability for drinking water supply in Kangayam taluk, Tirupur district, Tamil Nadu, India. To achieve this objective, seventy-eight groundwater samples were collected from the wells spread over the study area during December 2016. The collected groundwater samples were tested in the laboratory for various hydrogeochemical parameters such as hydrogen ion concentration (pH), electrical conductivity, total dissolved solids, total hardness, calcium, magnesium, sodium, potassium, chloride, bicarbonate, carbonate, nitrate, sulphate and fluoride...
September 10, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30191444/ambient-particulate-matter-concentration-levels-of-ahvaz-iran-in-2017
#12
Gholamreza Goudarzi, Nadali Alavi, Sahar Geravandi, Ahmad Reza Yari, Farzaneh Aslanpour Alamdari, Sina Dobaradaran, Majid Farhadi, Hamed Biglari, Maryam Dastoorpour, Bayram Hashemzadeh, Mohammad Javad Mohammadi
Dust storm in Khuzestan region is strongly influenced by transportation and influx of large amount of particulate matter from internal sources (Hawizeh Marshes and East Ahwaz) and external sources (the Arabian Desert in Saudi Arabia, Jordan, Syria and the Sahara Desert). Particulate matter is one of the main components of indoor and outdoor air quality that can be very dangerous for human. The principal objective of this study was the pinpoint of the source of airborne particulate matter by the NOAA HYSPLIT model in Ahvaz City, southwest of Iran...
September 6, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30187152/regional-bedrock-geochemistry-associated-with-podoconiosis-evaluated-by-multivariate-analysis
#13
Jamey N Cooper, Allen M Cooper, Benjamin L Clausen, Kevin E Nick
Podoconiosis is a disease whose etiology remains murky. Currently, the disease is attributed to particles that are believed to move through the skin and into the lymphatic system causing swelling of the lower legs. Identity of these particles or their composition remains unclear, though the presence of silicon and/or aluminum is often noted and frequently cited as causal agents. We applied multivariate analyses to the bedrock compositions of a large set of cases from an online database in an effort to identify underlying patterns or combinations of relative element abundances associated with podoconiosis-endemic regions...
September 5, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30173366/occurrence-of-fluorosis-in-a-population-living-in-a-high-fluoride-groundwater-area-nakuru-area-in-the-central-kenyan-rift-valley
#14
Patrick Gevera, Hassina Mouri, Godfrey Maronga
Endemic fluorosis caused by the consumption of high-fluoride groundwater is a public health problem in Nakuru, in the Kenyan Rift Valley. The present study was carried out during the period January-February 2017 to determine the prevalence and severity of dental fluorosis among patients of two Nakuru healthcare facilities, namely St. Mary's Hospital-Gilgil and Egerton University-Njoro Dental Clinic. The patients consisted of both young and old members of the Nakuru population served with groundwater containing high levels of fluoride ranging from 0...
September 1, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30171477/micrornas-and-their-role-in-environmental-chemical-carcinogenesis
#15
Minghui Li, Xia Huo, Chand Basha Davuljigari, Qingyuan Dai, Xijin Xu
MicroRNAs (miRNAs) are a class of small, noncoding RNA species that play crucial roles across many biological processes and in the pathogenesis of major diseases, including cancer. Recent studies suggest that the expression of miRNA is altered by certain environmental chemicals, including metals, organic pollutants, cigarette smoke, pesticides and carcinogenic drugs. In addition, extensive studies have indicated the existence and importance of miRNA in different cancers, suggesting that cancer-related miRNAs could serve as potential markers for chemically induced cancers...
August 31, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30171476/air-pollution-and-body-burden-of-persistent-organic-pollutants-at-an-electronic-waste-recycling-area-of-china
#16
Qilin Qin, Xijin Xu, Qingyuan Dai, Kai Ye, Chenyang Wang, Xia Huo
This paper reviews the concentrations of persistent organic pollutants (POPs) in atmosphere of an electronic waste (e-waste) recycling town, Guiyu, in Southeast China, focusing on polybrominated diphenyl ethers (PBDEs), polychlorinated dibenzo-p-dioxin and dibenzofurans (PCDD/Fs), polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs). We assess the evidence for the association between air pollution and human body burden, to provide an indication of the severity of respiratory exposure...
August 31, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30155753/assessment-of-water-quality-and-trace-metal-contaminations-in-mondolkiri-province-in-the-northeastern-part-of-cambodia
#17
Kongkea Phan, Samrach Phan, Soknim Se, Huy Sieng, Laingshun Huoy, Kyoung-Woong Kim
The aim of the present study is to investigate water quality and potential trace metal contaminations in the Northeastern part of Cambodia. Tube well (n = 35), hand-dug well (n = 18), channel (n = 10) and lake/pond (n = 8) water samples were randomly collected from Mondolkiri province which is located in the Northeastern highland of Cambodia. A water sample was collected in two different bottles. One was filled in 30-mL polyethylene bottle after which was acidified to pH < 2 with concentrated HNO3 ...
August 28, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30143907/enhanced-irreversible-fixation-of-cesium-by-wetting-and-drying-cycles-in-soil
#18
Sang-Min Park, Jung-Seok Yang, Daniel C W Tsang, Daniel S Alessi, Kitae Baek
The retention of radioactive cesium (Cs) in soil is significantly related to the types of clay minerals, while the weathering process affects the irreversible adsorption sites in clay minerals. In this study, the effect of weathering (exposure duration of Cs and repeated wetting and drying cycles) on fractionation of Cs in soils was investigated using fractionation analysis by the sequential extraction. The residual fraction of Cs increased slowly with exposure time but increased rapidly by repeated wetting and drying cycles...
August 24, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30140965/population-based-mortality-data-suggests-remediation-is-modestly-effective-in-two-montana-superfund-counties
#19
B Davis, S McDermott, M McCarter, A Ortaglia
The health effects of living in proximity to Superfund sites with ongoing remediation were evaluated for residents of two contiguous Montana counties, Deer Lodge and Silver Bow. Deer Lodge and Silver Bow are home to the Anaconda Smelter and Silver Bow Creek/Butte Area Superfund sites, respectively. Established by the Environmental Protection Agency in 1983, both sites have had ongoing remediation for decades. Employing county level death certificate data obtained from the Centers for Disease Control and Prevention WONDER site, sex and age-adjusted standardized mortality ratios (SMRs) for composite targeted causes of death were calculated using observed versus expected mortality for both counties, and compared to the expected mortality from the remaining Montana counties...
August 23, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30132092/assessment-of-the-stabilization-of-heavy-metal-contaminants-in-soils-using-chemical-leaching-and-an-earthworm-bioassay
#20
Azilah Abd Aziz, Byung-Tae Lee, Hyeop-Jo Han, Kyoung-Woong Kim
Soil stabilization is a remedial technique that reduces the exposure of the soil environment to soil contaminants. Its efficacy can be assessed by determining whether the environmental availability of a contaminant decreases following treatment. We evaluated several chemical leaching treatments by assessing both contaminant leachability and bioaccumulation in the earthworm Eisenia fetida, and determined the most effective treatment for achieving soil stabilization. Soil samples contaminated with As, Cd, Cu, Pb, and/or Zn were collected from abandoned mine areas and stabilized by adding limestone and steel slag (5% and 2% w/w, respectively)...
August 21, 2018: Environmental Geochemistry and Health
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