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Environmental Geochemistry and Health

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https://www.readbyqxmd.com/read/30417256/distribution-pattern-and-health-risk-assessment-of-polycyclic-aromatic-hydrocarbons-in-the-water-and-sediment-of-algoa-bay-south-africa
#1
A O Adeniji, O O Okoh, A I Okoh
Polycyclic aromatic hydrocarbons are amongst the pollutants of major concern in the terrestrial and aquatic habitats. They are mostly characterised by carcinogenic and non-carcinogenic effects. Distribution and potential health risks of sixteen priority PAHs in the water and sediment samples collected between December 2015 and June 2016 from Algoa Bay, South Africa, were evaluated. Water and sediment samples collected were extracted with liquid-liquid and soxhlet extraction methods, respectively, and then cleaned up using glass column loaded with silica gel...
November 11, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30415396/potential-exposure-to-metals-and-health-risks-of-metal-intake-from-tieguanyin-tea-production-in-anxi-china
#2
Jingwei Sun, Gongren Hu, Kangkang Liu, Ruilian Yu, Qiuyan Lu, Yunfeng Zhang
The metal content of Tieguanyin tea from Anxi, Southeast China, was studied. Leaching experiments were designed based on the local tea-drinking habits, and tea infusions were prepared using three types of water and two methods of soaking tea. Twelve metals (Cd, As, Cr, Pb, Se, Sb, Ag, Tl, Cu, Zn, Be, and Ba) were measured by inductively coupled plasma mass spectrometry (ICP-MS), and a human health risk assessment was performed. The results showed that the quality of water used for steeping tea has a direct effect on the leaching concentrations of metals in the tea infusion and this effect can be reduced by using pure water or commercially available drinking water...
November 10, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30413904/health-risk-assessment-and-source-apportionment-of-polycyclic-aromatic-hydrocarbons-associated-with-pm-10-and-road-deposited-dust-in-ahvaz-metropolis-of-iran
#3
Ali Najmeddin, Behnam Keshavarzi
The objective of this study was to compare the characteristics of polycyclic aromatic hydrocarbons (PAHs) in PM10 and road dust samples, as well as to identify and quantify the contributions of each source profile using the positive matrix factorization (PMF) receptor model. Health risk assessment was carried out using toxic equivalency factors and incremental lifetime cancer risk (ILCR), which quantitatively estimate the exposure risk for age-specific groups. PM10 samples were collected on PTFE filters in the metropolitan area of Ahvaz...
November 9, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30406898/development-of-scientifically-justified-proposals-on-the-prevention-and-treatment-of-environmentally-determined-constitutional-growth-delay-in-children-in-the-west-kazakhstan-region
#4
Akmaral K Zhumalina, Erbol Zh Bekmukhambetov, Balash T Tusupkaliev, Mairamkul B Zharlikasinova
Environmental pollution in many regions of Kazakhstan poses a threat to the growth and development of local children. For children living the near the Aral Sea, chrome processing and gas processing regions, we undertook a medical examination, including physical and sexual development parameters, laboratory studies (complete blood count, urinalysis, blood chemistry), bone age, blood levels of microelements (chromium, manganese, nickel, lead, copper) and hormones [thyroid (T3, T4, TSH), sexual (LH, FSH), growth (STH, IGF-1)], in consultation with relevant specialist doctors...
November 8, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30406897/hydrochemical-assessment-of-surface-and-ground-waters-used-for-drinking-and-irrigation-in-kardeh-dam-basin-ne-iran
#5
Hoda Mousazadeh, Mohamad Hosein Mahmudy-Gharaie, Abolfazl Mosaedi, Reza Moussavi Harami
Water quality for drinking and irrigation usage was examined in Kardeh dam basin in NE Iran. Thirty-two surface and groundwater samples were collected and analyzed for major ions of Ca2+ , Mg2+ , Na+ , K+ , HCO3 - , CO3 2- , SO4 2- and Cl- by using standard analytical methods of titration and atomic absorption spectrophotometry at geochemistry laboratory of Ferdowsi University of Mashhad. Dominant cation in most of the water samples are Ca2+ and Mg2+ , and dominant anion is HCO3 - . Water quality index (WQI) was calculated based on physicochemical parameters such as pH, EC and major ions...
November 8, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30392056/bioaccumulation-of-arsenic-and-fluoride-in-vegetables-from-growing-media-health-risk-assessment-among-different-age-groups
#6
Tasneem G Kazi, Kapil D Brahman, Jameel A Baig, Hassan I Afridi
The current study was conducted to evaluate the arsenic (As) and fluoride (F- ) concentrations in growing media (stored rainwater and soil), of district Tharparkar, Pakistan. The bioaccumulation/transportation of As and F from growing media to different types of vegetables (wild cucumis, Indian squish and cluster bean) was evaluated. Total concentrations of As and F- in stored rainwater samples were observed up to 585 μg/L and 32.4 mg/L, respectively, exceeding many folds higher than WHO provisional guideline values...
November 3, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30390219/association-of-consumption-of-excess-hard-water-body-mass-index-and-waist-circumference-with-risk-of-hypertension-in-individuals-living-in-hard-and-soft-water-areas
#7
Mahmood Yousefi, Hossein Najafi Saleh, Mehdi Yaseri, Mohsen Jalilzadeh, Ali Akbar Mohammadi
Chronic exposure to soft drinking water increases the risk of hypertension. We conducted a cross-sectional study in 2017 in two study areas in the Poldasht County to assess the relation of hardness, body mass index and waist circumference with risk of hypertension. Total water hardness was measured by gravimetric methods. Hardness of > 180 ppm was considered to be hard drinking water. The Shiblu and Gharghologh areas had a four times higher mean total hardness level in drinking water (968.69 mg/L as CaCO3 ) than the Sarisoo and Agh Otlogh (180 mg/L as CaCO3 ) areas...
November 2, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30350125/assessment-of-environmental-and-ergonomic-hazard-associated-to-printing-and-photocopying-a-review
#8
REVIEW
Abhishek Nandan, N A Siddiqui, Pankaj Kumar
"Knowledge is power" and distribution of knowledge is fueled by printing and photocopying industry. Even as printing and photocopying industry have revolutionized the availability of documents and perceptible image quickly at extremely inexpensive and affordable cost, the boon of its revolution has turned into a bane by irresponsible, uncontrolled and extensive use, causing irreversible degradation to not only ecosystem by continuous release of ozone and other volatile organic compounds (VOCs) but also the health of workers occupationally exposed to it...
October 22, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30302579/genotoxic-effects-of-pm-10-and-pm-2-5-bound-metals-metal-bioaccessibility-free-radical-generation-and-role-of-iron
#9
Suman Yadav, Navanath Kumbhar, Rohi Jan, Ritwika Roy, P Gursumeeran Satsangi
The present study was undertaken to examine the possible genotoxicity of ambient particulate matter (PM10 and PM2.5 ) in Pune city. In both size fractions of PM, Fe was found to be the dominant metal by concentration, contributing 22% and 30% to the total mass of metals in PM10 and PM2.5 , respectively. The speciation of soluble Fe in PM10 and PM2.5 was investigated. The average fraction of Fe3+ and Fe2+ concentrations in PM2.5 was 80.6% and 19.3%, respectively, while in PM2.5 this fraction was 71.1% and 29...
October 9, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30298288/a-systematic-review-on-global-pollution-status-of-particulate-matter-associated-potential-toxic-elements-and-health-perspectives-in-urban-environment
#10
REVIEW
Muhammad Ubaid Ali, Guijian Liu, Balal Yousaf, Habib Ullah, Qumber Abbas, Mehr Ahmad Mujtaba Munir
Airborne particulate matter (PM) that is a heterogeneous mixture of particles with a variety of chemical components and physical features acts as a potential risk to human health. The ability to pose health risk depends upon the size, concentration and chemical composition of the suspended particles. Potential toxic elements (PTEs) associated with PM have multiple sources of origin, and each source has the ability to generate multiple particulate PTEs. In urban areas, automobile, industrial emissions, construction and demolition activities are the major anthropogenic sources of pollution...
October 8, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30293161/interactions-between-polycyclic-aromatic-hydrocarbons-and-epoxide-hydrolase-1-play-roles-in-asthma
#11
Qihua Wang, Xijin Xu, Xiaowei Cong, Zhijun Zeng, Long Xu, Xia Huo
Asthma, as one of the most common chronic diseases in children and adults, is a consequence of complex gene-environment interactions. Polycyclic aromatic hydrocarbons (PAHs), as a group of widespread environmental organic pollutants, are involved in the development, triggering and pathologic changes of asthma. Various previous studies reported the critical roles of PAHs in immune changes, oxidative stress and environment-gene interactions of asthma. EPHX1 (the gene of epoxide hydrolase 1, an enzyme mediating human PAH metabolism) had a possible association with asthma by influencing PAH metabolism...
October 6, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30291570/estimation-of-annual-effective-dose-due-to-ingestion-of-radioactive-elements-in-sri-lankan-common-meal-plans
#12
Chamila Jayasinghe, Vimukthi Molligoda, Thilaka Attanayaka, Vajira Waduge
Dietary ingestion of radionuclides by human may lead to many hazardous effects such as cancers. No studies have been conducted to estimate the levels of radioactivity dosage received from Sri Lankan homemade foods. In order to find out the levels of radionuclides in Sri Lankan cooked foods, meal plans (n = 11) that are most commonly consumed were analyzed for the activity concentrations of the radioisotopes 226 Ra, 210 Pb, 232 Th, 137 Cs, and 40 K by means of gamma spectroscopy. 40 K had the highest activity concentration present in the meal plans with a range of 80...
October 5, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30288647/distribution-of-polycyclic-aromatic-hydrocarbons-pahs-in-commonly-consumed-seafood-from-coastal-areas-of-bangladesh-and-associated-human-health-implications
#13
Md Habibullah-Al-Mamun, Md Kawser Ahmed, Md Saiful Islam, Masahiro Tokumura, Shigeki Masunaga
Levels, distribution, possible sources and potential risks of 16 USEPA priority polycyclic aromatic hydrocarbons (PAHs) were investigated comprehensively in frequently consumed seafood species collected from the coastal areas of Bangladesh. Samples were collected in winter and summer, 2015. The total concentration of PAHs (∑PAHs) in the examined seafood was 184.5-2806.6 ng/g wet weight (ww) in winter and 117.9-4216.8 ng/g ww in summer, respectively. The levels of ∑PAHs were comparable to or higher than those reported from other coastal areas...
October 4, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30284697/major-ion-and-dissolved-heavy-metal-geochemistry-distribution-and-relationship-in-the-overlying-water-of-dongting-lake-china
#14
Yan Chen, Lingqing Wang, Tao Liang, Jun Xiao, Jing Li, Haicheng Wei, Linlin Dong
Deteriorating lake water quality has become a serious environmental issue around the globe. Heavy metals dissolved in the overlying water of lakes are notably more toxic than those found in lake sediment. Given this, we sought to better understand the characteristics of particular major ion and dissolved heavy metal in Dongting Lake-the second largest freshwater lake in China. Overlying water samples were collected from Dongting Lake to investigate the major ion geochemistry and to examine the relationship between the major ions and dissolved heavy metals...
October 4, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30276587/geochemical-characterization-and-renal-cell-toxicity-of-water-soluble-extracts-from-u-s-gulf-coast-lignite
#15
A S Ojeda, S D Ford, R M Gallucci, M A Ihnat, R P Philp
An assortment of organic material can leach from lignite (low-rank coal) in water, and the water-soluble fraction from lignite has been associated with adverse health effects in areas of the Balkans. Recent efforts have been made to evaluate this hypothesis in other areas where lignite is in contact with groundwater like in the U.S. Gulf Coast region. In this study, five Gulf Coast lignite samples were extracted with water, and the water-soluble portion of the coal was then characterized by total organic carbon, UV-Vis spectroscopy, and gas chromatography/mass spectrometry...
October 1, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30269269/in-vitro-bioaccessibility-of-potentially-toxic-metals-ptms-in-baoji-urban-soil-nw-china-from-different-functional-areas-and-its-implication-for-health-risk-assessment
#16
Yuwei Ai, Xiaoping Li, Yu Gao, Meng Zhang, Yuchao Zhang, Xu Zhang, Xiangyang Yan, Bin Liu, Hongtao Yu
In order to better understand both the conceptual and operational aspects of bioaccessibility and phytobioavailability of PTMs (Co, Cr, Cu, Li, Mn, Ni, Pb, Zn) in different urban soils, a total of 30 soil samples from agricultural region, entertainment district, education area, traffic area, residential area and industrial area (IA) in Baoji urban city (NW China) were collected and the bioaccessibility and phytobioavailability were measured by multi-in vitro models of PBET, SBET, citric acid leaching and Tessier sequential extraction procedure, respectively...
September 29, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30269268/assessing-the-potential-origins-and-human-health-risks-of-trace-elements-in-groundwater-a-case-study-in-the-khoy-plain-iran
#17
Rahim Barzegar, Asghar Asghari Moghaddam, Jan Adamowski, Amir Hossein Nazemi
The objectives of this study were to measure some trace element concentrations in the groundwater of the Khoy area in northwestern Iran, understand their potential origins using multivariate statistical approaches (correlation analysis, cluster analysis and factor analysis), and evaluate their non-carcinogenic human health risks to local residents through drinking water intake. The trace element status of the groundwater and the associated health risks in the study area have not previously been reported. Groundwater water samples were collected from 54 water sources in July 2017 in the study area...
September 29, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30267320/a-comprehensive-review-on-environmental-transformation-of-selenium-recent-advances-and-research-perspectives
#18
REVIEW
Habib Ullah, Guijian Liu, Balal Yousaf, Muhammad Ubaid Ali, Samina Irshad, Qumber Abbas, Rafay Ahmad
Selenium (Se) is an important micronutrient and essential trace element for both humans and animals, which exist in the environment ubiquitously. Selenium deficiency is an important issue worldwide, with various reported cases of its deficiency. Low selenium contents in some specific terrestrial environments have resulted in its deficiency in humans. However, high levels of selenium in the geochemical environment may have harmful influences and can cause a severe toxicity to living things. Due to its extremely narrow deficiency and toxicity limits, selenium is becoming a serious matter of discussion for the scientists who deals with selenium-related environmental and health issues...
September 28, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30264359/trace-metal-pollution-and-ecological-risk-assessment-in-agricultural-soil-in-dexing-pb-zn-mining-area-china
#19
Junjie Hu, Boji Lin, Meiyi Yuan, Zhilang Lao, Kangming Wu, Yanyan Zeng, Zhihui Liang, Huiru Li, Yanliang Li, Dan Zhu, Junlong Liu, Hongbo Fan
Surface agricultural soil samples obtained from Dexing Pb/Zn mining area in Jiangxi province were analyzed for trace metals to assess their pollution status and potential ecological risk. The spatial distributions and the major trace metals pollution sources were described and identified with the combination of chemical measures and geographic information systems technology. The level of pollution in seven metals is decreasing in the following order: zinc (Zn 128.9 mg/kg) > chromium (Cr 64.1 mg/kg) > lead (Pb 58...
September 27, 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/30259255/trace-elements-in-marine-organisms-of-magdalena-bay-pacific-coast-of-mexico-bioaccumulation-in-a-pristine-environment
#20
S B Sujitha, M P Jonathan, David Aurioles-Gamboa, Lorena Elizabeth Campos Villegas, Jimena Bohórquez-Herrera, Claudia J Hernández-Camacho
Trace element (Fe, Mn, Cr, Cu, Ni, Co, Pb, Zn, Cd, As, Hg) concentrations were assessed in marine organisms (n = 52) sampled from the Magdalena Bay lagoon complex in Baja California Sur, Mexico, a pristine marine environment. The overall trend of metal concentrations (dry weight) in the organisms was found to be Fe > Zn > Cd > Cu > Mn > Pb > As > Hg > Ni > Cr > Co. Bivalve mollusks (53.83 mg kg-1 ) contained twofold higher levels of metals than the finfishes (20...
September 26, 2018: Environmental Geochemistry and Health
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