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Environmental Geochemistry and Health

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https://www.readbyqxmd.com/read/28213721/effect-of-chemical-amendments-on-remediation-of-potentially-toxic-trace-elements-ptes-and-soil-quality-improvement-in-paddy-fields
#1
Sung Chul Kim, Young Kyu Hong, Se Jin Oh, Seung Min Oh, Sang Phil Lee, Do Hyung Kim, Jae E Yang
Remediation of potentially toxic trace elements (PTEs) in paddy fields is fundamental for crop safety. In situ application of chemical amendments has been widely adapted because of its cost-effectiveness and environmental safety. The main purpose of this research was to (1) evaluate the reduction in dissolved concentrations of cadmium (Cd) and arsenic (As) with the application of chemical amendments and (2) monitor microbial activity in the soil to determine the remediation efficiency. Three different chemical amendments, lime stone, steel slag, and acid mine drainage sludge, were applied to paddy fields, and rice (Oryza sativa L...
February 17, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28197871/monitoring-and-risk-assessment-of-polychlorinated-biphenyls-pcbs-in-agricultural-soil-from-two-industrialized-areas
#2
Leesun Kim, Jin-Woo Jeon, Ji-Young Son, Min-Kyu Park, Chul-Su Kim, Hwang-Ju Jeon, Tae-Hoon Nam, Kyeongsoon Kim, Byung-Jun Park, Sung-Deuk Choi, Sung-Eun Lee
For monitoring and risk assessment, levels and distributions of Σ29 PCBs in paddy soil samples collected from Gwangyang (10 sites) and Ulsan (20 sites), heavily industrialized cities in Korea, were investigated using high-resolution gas chromatography/high-resolution mass spectrometry. Overall, total concentrations of Σ29 PCBs in Gwangyang (216.4-978.6 pg g(-1) dw) and Ulsan (273.8-1824.1 pg g(-1) dw) were higher than those (106.6-222.6 pg g(-1) dw) in agricultural soil from Anseong in Korea. The TEQ (toxic equivalency) values from Gwangyang (0...
February 14, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28194624/concentration-of-heavy-metals-in-vegetables-and-potential-health-risk-assessment-in-china
#3
Taiyang Zhong, Dawei Xue, Limin Zhao, Xiuying Zhang
Food safety is an important issue in the world. This study assessed the health risk for the Chinese public when consuming vegetables grown in China, based on 1335 data records from 220 published papers during 2007-2016. The results showed that the average of Pb, Cd, and Hg concentration in vegetables was 0.106, 0.041, and 0.008 mg/kg, which were lower than the maximum allowable concentrations, respectively. Leaf vegetables contained higher heavy metals than root vegetables and fruit vegetables. On a provincial scale, the highest Pb, Cd, and Hg concentrations in vegetables were determined by those in soil and atmosphere...
February 13, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28185221/waste-dumpsites-and-public-health-a-case-for-lead-exposure-in-zimbabwe-and-potential-global-implications
#4
Tsanangurayi Tongesayi, Jameson Kugara, Sunungurai Tongesayi
Most waste sites in Zimbabwe are not sanitary landfills but open dumps that indiscriminately receive waste from municipalities, industries, commercial establishments, and social services establishments. People, including children, who eke out a living through scavenging the dumps expose themselves to environmental pollutants at the dumps via inadvertent ingestion and inhalation of contaminated dust, and dermal absorption. The public is potentially being exposed to a slew of the pollutants via air, water, and food, all contaminated by uncontrolled leachates and aerially deposited dust and particulates from the sites...
February 9, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28185220/polycyclic-aromatic-hydrocarbons-pahs-in-surface-sediments-near-a-mining-site-in-okobo-enjema-nigeria-concentrations-source-apportionment-and-risk-assessment
#5
Kenechukwu E Ugwu, Pius O Ukoha
PAHs are pollutants of serious environmental and human health concerns. PAH studies in environmental compartments may assist in designing PAH control measures. The levels of selected PAHs in surface sediment samples of a stream near a mining site at Okobo-Enjema, Nigeria, were investigated. The data were used to determine the possible sources of the PAHs and to assess the potential health risk of the PAHs to humans which was evaluated based on the sediment quality, contamination level and cancer risk guidelines...
February 9, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28185219/polycyclic-aromatic-hydrocarbons-in-urban-street-dust-sources-and-health-risk-assessment
#6
Xue Song Wang
Urban street dust samples from 49 sampling sites in Xuzhou (China) were collected and analyzed for 16 polycyclic aromatic hydrocarbons (PAHs) using gas chromatography/mass spectrometry. The organic matter and total carbon contents were also determined. The results showed that total PAHs concentrations varied from 2174 to 24,499 ng/g with a mean value of 6616 ng/g, organic matter content varied from 3.1 to 8.7% with a mean value of 5.8%, total carbon content varied from 13.2 to 24.2%, with a mean value of 19...
February 9, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28176197/using-urine-as-a-biomarker-in-human-exposure-risk-associated-with-arsenic-and-other-heavy-metals-contaminating-drinking-groundwater-in-intensively-agricultural-areas-of-thailand
#7
Pokkate Wongsasuluk, Srilert Chotpantarat, Wattasit Siriwong, Mark Robson
Urine used as a biomarker was collected and compared between two groups of participants: (1) a groundwater-drinking group and (2) a non-groundwater-drinking group in intensively agricultural areas in Ubon Ratchathani province, Thailand. The statistical relationship with the metal concentration in shallow groundwater wells was established with urine data. According to the groundwater data, the health risk assessment results for four metals appeared to be higher for participants who drank groundwater than for the other group...
February 7, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28176196/association-of-soil-selenium-strontium-and-magnesium-concentrations-with-parkinson-s-disease-mortality-rates-in-the-usa
#8
Hongbing Sun
Among the 41 soil elements analyzed from 4856 sites across the contiguous 48 states, average Parkinson's disease (PD) mortality rates between 1999 and 2014 have the most significant positive correlation with the average soil strontium (Sr) concentrations (correlation r = 0.47, significance level p = 0.00), and average PD mortality rates have the most significant inverse correlation with the average soil selenium (Se) concentrations (r = -0.44, p = 0.00). Multivariate regression models indicate that soil Sr and Se concentrations can explain 35...
February 7, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28160201/2016-outstanding-reviewers
#9
(no author information available yet)
No abstract text is available yet for this article.
February 3, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28155030/compositional-analysis-of-topsoil-metals-and-its-associations-with-cancer-mortality-using-spatial-misaligned-data
#10
Gonzalo López-Abente, Juan Locutura-Rupérez, Pablo Fernández-Navarro, Iván Martín-Méndez, Alejandro Bel-Lan, Olivier Núñez
The presence of toxic metals in soil per se, and in soil impacted by mining, industry, agriculture and urbanisation in particular, is a major concern for both human health and ecotoxicology. The dual aim of this study was: to ascertain whether topsoil composition could influence the spatial distribution of mortality due to different types of cancer and to identify possible errors committed by epidemiological studies which analyse soil composition data as a closed number system. We conducted an ecological cancer mortality study, covering 861,440 cancer deaths (27 cancer sites) in 7917 Spanish mainland towns, from 1999 to 2008...
February 2, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28150053/healing-and-edible-clays-a-review-of-basic-concepts-benefits-and-risks
#11
Celso de Sousa Figueiredo Gomes
The use of clay by humans for medicinal and wellness purposes is most probably as old as mankind. Within minerals, due to its ubiquitous occurrence in nature and easy availability, clay was the first to be used and is still used worldwide. Healing clays have been traditionally used by man for therapeutic, nutritional and skin care purposes, but they could impart some important health and skin care risks. For instance, clay particles could adsorb and make available for elimination or excretion any potential toxic elements or toxins being ingested or produced, but they could adsorb and make available for incorporation, through ingestion or through dermal absorption, toxic elements, e...
February 1, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28144801/a-brief-and-critical-review-on-hydrofluorosis-in-diverse-species-of-domestic-animals-in-india
#12
REVIEW
Shanti Lal Choubisa
India is one of the fluoride-endemic countries where the maximum numbers of ground or drinking water sources are naturally fluoridated. In India, a total of 23, out of 36 states and union territories have drinking water contaminated with fluoride in varying concentration. In the present scenario, especially in rural India, besides the surface waters (perennial ponds, dams, rivers, etc.), bore wells and hand pumps are the principal drinking water sources for domestic animals such as cattle (Bos taurus), water buffaloes (Bubalus bubalis), sheep (Ovis aries), goats (Capra hircus), horses (Equus caballus), donkeys (Equus asinus) and dromedary camels (Camelus dromedarius)...
January 31, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28130735/impact-of-micro-and-macroelement-content-on-potential-use-of-freshwater-sediments-gyttja-derived-from-lakes-of-eastern-latvia
#13
Zane Vincevica-Gaile, Karina Stankevica
Organic-rich freshwater sediments formed from the remains of water plants, plankton and benthic organisms, which are transformed by microorganisms, and mixed with mineral components supplied from the lake basin, are known as gyttja (sapropel or dy). Gyttja is a valuable natural resource that can be used in various fields such as agriculture, forestry, construction, chemical industry, balneology and the latter ones are especially interested in chemical composition and safety of natural materials. The aim of the study was to investigate micro- and macro-element content of gyttja derived from lakes of eastern Latvia (north-east of Europe)...
January 27, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28101717/trace-metals-accumulation-in-soil-irrigated-with-polluted-water-and-assessment-of-human-health-risk-from-vegetable-consumption-in-bangladesh
#14
REVIEW
Md Atikul Islam, Davor Romić, Md Ali Akber, Marija Romić
Trace metals accumulation in soil irrigated with polluted water and human health risk from vegetable consumption was assessed based on the data available in the literature on metals pollution of water, soil, sediment and vegetables from the cites of Bangladesh. The quantitative data on metal concentrations, their contamination levels and their pollution sources have not been systematically gathered and studied so far. The data on metal concentrations, sources, contamination levels, sample collection and analytical tools used were collected, compared and discussed...
January 18, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28097496/historical-trends-of-organochlorine-pesticides-ocps-recorded-in-sediments-across-the-tibetan-plateau
#15
Ruiqiang Yang, Ting Xie, Handong Yang, Simon Turner, Guangjian Wu
Sediment cores from four lakes across the Tibetan Plateau were used as natural archives to study the time trends of organochlorine pesticides (OCPs). The total concentrations of dichlorodiphenyltrichloroethane (ΣDDT) and hexachlorocyclohexane isomers (ΣHCH) were in the range of 0.04-1.61 and 0.08-1.88 ng/g based on dry weight (dw), while the input fluxes were in the range of 0.3-236 and 0.7-295 pg/cm(2)/y in the core sediments, respectively. The input fluxes of ΣDDT and ΣHCH generally peaked in sediment layers corresponding to the 1970s-1990s and peaked in top sediment layers...
January 17, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/27995354/estimation-of-the-daily-soil-dust-sd-ingestion-rate-of-children-from-gansu-province-china-via-hand-to-mouth-contact-using-tracer-elements
#16
Jin Ma, Li-Bo Pan, Qin Wang, Chun-Ye Lin, Xiao-Li Duan, Hong Hou
A total of 60 children (31 males and 29 females) between the ages of 3 and 12 years were randomly selected from Lanzhou City in Gansu Province, northwest China. Hand (soil/dust) SD samples from these children were collected using hand wipes. We determined the approximate amounts of hand SD and the concentrations of three tracer soil elements (Ce, Y, and V) in these samples. The approximate amounts of hand SD ranged from 42.28 to 173.76 mg, with a median value of 85.42 mg. In addition, the mean amounts of hand SD estimated using the concentrations of Ce, Y, and V in the samples were 4...
December 19, 2016: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/27995353/soil-sampling-strategies-for-site-assessments-in-petroleum-contaminated-areas
#17
Geonha Kim, Saikat Chowdhury, Yen-Min Lin, Chih-Jen Lu
Environmental site assessments are frequently executed for monitoring and remediation performance evaluation purposes, especially in total petroleum hydrocarbon (TPH)-contaminated areas, such as gas stations. As a key issue, reproducibility of the assessment results must be ensured, especially if attempts are made to compare results between different institutions. Although it is widely known that uncertainties associated with soil sampling are much higher than those with chemical analyses, field guides or protocols to deal with these uncertainties are not stipulated in detail in the relevant regulations, causing serious errors and distortion of the reliability of environmental site assessments...
December 19, 2016: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/27975327/levels-and-distributions-of-organochlorine-pesticides-in-the-soil-groundwater-system-of-vegetable-planting-area-in-tianjin-city-northern-china
#18
Hong-Wei Pan, Hong-Jun Lei, Xiao-Song He, Bei-Dou Xi, Yu-Ping Han, Qi-Gong Xu
To study the influence of long-term pesticide application on the distribution of organochlorine pesticides (OCPs) in the soil-groundwater system, 19 soil samples and 19 groundwater samples were collected from agricultural area with long-term pesticide application history in Northern China. Results showed that the composition of OCPs changed significantly from soil to groundwater. For example, ∑DDT, ∑HCH, and ∑heptachlor had high levels in the soil and low levels in the groundwater; in contrast, endrin had low level in the soil and high level in the groundwater...
December 14, 2016: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/27921191/a-review-of-the-public-health-impacts-of-unconventional-natural-gas-development
#19
REVIEW
P J Saunders, D McCoy, R Goldstein, A T Saunders, A Munroe
The public health impact of hydraulic fracturing remains a high profile and controversial issue. While there has been a recent surge of published papers, it remains an under-researched area despite being possibly the most substantive change in energy production since the advent of the fossil fuel economy. We review the evidence of effects in five public health domains with a particular focus on the UK: exposure, health, socio-economic, climate change and seismicity. While the latter would seem not to be of significance for the UK, we conclude that serious gaps in our understanding of the other potential impacts persist together with some concerning signals in the literature and legitimate uncertainties derived from first principles...
December 5, 2016: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/27889850/chemical-fractionation-and-health-risk-assessment-of-particulate-matter-bound-metals-in-pune-india
#20
Rohi Jan, Ritwika Roy, Suman Yadav, P Gursumeeran Satsangi
The present study deals with the assessment of sequential extraction of particulate matter (PM)-bound metals and the potential health risks associated with them in a growing metropolitan city (Pune) of India. The average mass concentration of both PM2.5-10 and PM2.5 exceeded the National Ambient Air Quality Standards. Significant seasonal variation in mass concentration was found for both size fractions of PM with higher values in winter season and lower in monsoon. Chemical species of the studied trace metals in PM exhibited significant differences, due to difference in sources of pollution...
November 26, 2016: Environmental Geochemistry and Health
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