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Archives of Environmental Contamination and Toxicology

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https://www.readbyqxmd.com/read/28921305/allocation-of-metals-and-trace-elements-in-different-tissues-of-piscivorous-species-phalacrocorax-carbo
#1
Hribšek Irena, Jovičić Katarina, Karadžić Branko, Skorić Stefan
Great cormorants (Phalacrocorax carbo) are piscivorous birds, and as apex predators they accumulate high levels of contaminants from the aquatic ecosystems. In the present study, we analyzed distribution of Al, Cd, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Sr, and Zn in ten tissues (muscle, liver, kidney, spleen, gizzard, heart, skin, lard, breast feathers, and remiges) of the Great cormorants in the Marin Sprud locality, the Danube River, Serbia. Concentrations of elements in tissues were assessed by using inductively coupled plasma optical spectrometry...
September 18, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28916946/association-between-placental-polycyclic-aromatic-hydrocarbons-pahs-oxidative-stress-and-preterm-delivery-a-case-control-study
#2
Priyanka Agarwal, Laxmi Singh, Madhu Anand, Ajay Taneja
Polycyclic aromatic hydrocarbons are known to disturb the antioxidant defense system, which may indirectly contribute to induction of early pregnancy in women. Therefore, the present investigation was designed to offer preliminary information about exposure to PAHs by estimating their placental levels and its association with oxidative stress as well as with preterm birth. Placenta tissue samples were drawn after delivery from 84 healthy pregnant women, recruited at a local nursing home of Agra, India, and levels of PAHs were quantified by gas chromatograph equipped with flame ionization detector...
September 15, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28913550/oxidative-damage-and-genetic-toxicity-induced-by-dbp-in-earthworms-eisenia-fetida
#3
Guanying Wang, Jun Wang, Lusheng Zhu, Jinhua Wang, Hengzhou Li, Yizhang Zhang, Wenjun Liu, Jianpeng Gao
Di-n-butyl phthalate (DBP) is one of the most ubiquitous plasticizers used worldwide. However, it has negatives effects on the soil, water, atmosphere, and other environmental media and can cause serious pollution. According to the artificial soil test and previous studies, this study was conducted to evaluate the toxicity of earthworms induced by DBP at different concentrations (0, 0.1, 1.0, 10, and 50 mg kg(-1)) on the 7th, 14th, 21st, and 28th days of exposure. The variations in the antioxidant activities of enzymes, such as catalase (CAT), peroxidase (POD), superoxide dismutase (SOD), and glutathione-S-transferase (GST), in the amounts of malondialdehyde (MDA) and reactive oxygen species (ROS) and in the amount of DNA damage were measured to evaluate the toxic impact of DBP in earthworms...
September 14, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28889279/impact-of-land-use-on-the-mobility-of-hg-species-in-different-compartments-of-a-tropical-watershed-in-brazil
#4
Clara Ayume Ito de Lima, Marcelo Gomes de Almeida, Inacio Abreu Pestana, Wanderley R Bastos, Maria Cristina Nery do Nascimento Recktenvald, Cristina Maria Magalhães de Souza, Paulo Pedrosa
This study evaluated the levels of total Hg and CH3Hg(+) from a comprehensive perspective, considering the retention, leaching, and deposition of these contaminants in the main compartments (soil, plant litter, and sediment) of three landscapes (Atlantic Forest, pasture, and agricultural area) in a watershed in northern Rio de Janeiro State, Brazil. Variables analyzed were total Hg, CH3Hg(+), organic carbon, total nitrogen, grain size, and surface area. In soil samples, total Hg levels were the highest in agricultural soil followed by forest soil and pasture (97...
September 9, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28889278/endocrine-disrupting-compounds-from-the-source-water-of-the-huai-river-huainan-city-china
#5
Siping Niu, Cunliang Zhang
The occurrence and environmental risk of eight endocrine disrupting compounds (EDCs), namely dimethyl phthalate (DMP), diethyl phthalate (DEP), benzyl butyl phthalate (BBP), dibutyl phthalate (DBP), nonyl phenol (NP), bisphenol A (BPA), 17α-ethinylestradiol (EE2) and estrone (E1), from four water sources (Pingshantou, Wanfenggang, Shisi, and Shiyi) of Huai River (Huainan section) were investigated in this study. Except for DMP only found in Pingshantou, all of the selected EDCs existed widely in the source water...
September 9, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28889236/seasonal-variation-in-water-soluble-ions-in-airborne-particulate-deposition-in-the-suburban-nanjing-area-yangtze-river-delta-china-during-haze-days-and-normal-days
#6
Junlin An, Qimin Cao, Jianan Zou, Honglei Wang, Qing Duan, Yuanzhe Shi, Chen Chen, Junxiu Wang
To investigate the seasonal variation and characterization of water-soluble ions (WSIs) present in airborne particle deposition (APD) during Haze Days (visibility ≤7.5 km) and Normal Days (visibility >7.5 km) in suburban Nanjing area, 151 filter samples were collected from 18 May 2013 to 26 May 2014. Ten different WSIs from the samples were determined by Ion Chromatography. The results indicated that secondary WSIs (NH4(+), NO3(-), and SO4(2-)) were the main ions in the WSIs, averaging 17.2, 18.5, and 17...
September 9, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28879476/impact-assessment-of-atmospheric-dust-on-foliage-pigments-and-pollution-resistances-of-plants-grown-nearby-coal-based-thermal-power-plants
#7
Manisha Hariram, Ravi Sahu, Suresh Pandian Elumalai
Plant species grown in the vicinity of thermal power plants (TPP) are one of the immobile substrates to sink most of the pollutants emitted from their stacks. The continuous exposure of toxic pollutants to these plants may affect their resistances and essential biochemical's concentrations. In the present study, we estimated the impact of dust load generated by a TPPs to plant's dust retention capacity and pollution resistances (APTI and API). The observed ambient air quality index (AQI) showed that the surroundings of TPPs are in the severe air pollution category...
September 6, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28875229/scaling-to-the-organism-an-innovative-model-of-dynamic-exposure-hotspots-in-stream-systems
#8
Kristen M Harrigan, Paul A Moore
In flowing systems, fluctuations in the frequency, magnitude, and duration of exposure occurs due to turbulence and geomorphology, causing spatial and temporal variations in chemical exposure at the scale of the organism. Spatial models representing toxicant distribution at the appropriate scales of stream organisms are noticeably missing from the literature. To characterize the fine scale distribution of pollutants in freshwater streams at the scale of a benthic organism, nine artificial stream habitats were created (riffle, pool, run, bend, woody debris) with either sand or gravel substrate...
September 5, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28840287/gender-and-age-specific-relationships-between-phthalate-exposures-and-obesity-in-shanghai-adults
#9
Ruihua Dong, Tong Zhou, Jingsi Chen, Meiru Zhang, Han Zhang, Min Wu, Shuguang Li, Liwen Zhang, Bo Chen
Phthalate exposure has been reported to be associated with obesity (measured by body mass index [BMI]) and central obesity (measured by waist circumference [WC]). Yet, reported associations and the potential gender and age differences are inconsistent. We conducted a cross-sectional study involving 2330 participants in the fall of 2012. Urinary metabolites of ten phthalates were measured. Height, body weight, and waist circumference (WC) were measured using standardized methods. We performed logistic regression analyses to estimate the association between each urine phthalate metabolite (categorized into quartiles) and obesity and central obesity and conducted an additional, stratified analysis to explore the gender and age differences...
August 24, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28819681/low-level-environmental-cadmium-exposure-induces-kidney-tubule-damage-in-the-general-population-of-korean-adults
#10
Sang-Yong Eom, Mi-Na Seo, Young-Sub Lee, Kyung-Su Park, Young-Seoub Hong, Seok-Joon Sohn, Yong-Dae Kim, Byung-Sun Choi, Ji-Ae Lim, Ho-Jang Kwon, Heon Kim, Jung-Duck Park
Cadmium (Cd) is the most potent nephrotoxic heavy metal and may affect bone; it also has a long biological half-life in the human body. This study was designed to assess the effect of environmental low-level Cd exposure on kidney function and bone in the general population. The subjects of this cross-sectional study were 1907 healthy Korean adults who had not been exposed to Cd occupationally. We analyzed the concentrations of Cd in the urine, markers of renal tubule damage, such as β2-microglobulin (β2-MG) and N-acetyl-β-D-glucosaminidase (NAG) activity in the urine, calculated the estimated glomerular filtration rate (eGFR) using serum creatinine, and measured bone mineral density (BMD)...
August 17, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28819673/erratum-to-the-extent-of-heavy-metal-pollution-and-their-potential-health-risk-in-topsoils-of-the-massively-urbanized-district-of-shanghai
#11
Syed Taseer Abbas Jaffar, Fan Luo, Rong Ye, Hassan Younas, Xue-Feng Hu, Long-Zhu Chen
No abstract text is available yet for this article.
August 17, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28815314/a-comparative-study-on-macro-and-microelement-bioaccumulation-properties-of-leaves-and-bark-of-quercus-petraea-and-pinus-sylvestris
#12
Agnieszka Klink, Ludmiła Polechońska, Małgorzata Dambiec, Kamila Białas
Trees are widely used for biomonitoring and filtering air in industrial, urban, and rural areas. This research was undertaken to examine accumulation capacities of macroelements (Ca, K, Mg, Na) and trace metals (As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Zn) in needles and bark of Pinus sylvestris and leaves and bark of Quercus petraea growing in the vicinity of the chlor-alkali plant PCC Rokita in Brzeg Dolny (Lower Silesia, SW Poland). Because Scots pine is well studied and considered a useful bioindicator, we have used this species as a base for comparison of the accumulation ability of sessile oak that shows some features of good bioindicator, but whose biogeochemistry was scarcely studied...
August 16, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28815292/concentrations-and-exposure-evaluation-of-metals-in-diverse-food-items-from-chengdu-china
#13
Rong Wang, Bifeng Zhong, Lu Pi, Fuyu Xie, Mengqin Chen, Sanglan Ding, Shijun Su, Zhi Li, Zhiwei Gan
A total of 520 food samples belonging to 29 food types and 63 drinking water were collected in Chengdu market of China in 2014 to investigate the concentrations of 11 metals, and to assess the related exposure to the local consumers by estimating the hazard quotient and carcinogenic risk (CR). The results showed that metals concentrations in drinking water were below the limit values suggested by the Ministry of Health of the People's Republic of China, and FAO/WHO (Food and Agriculture Organization of the United Nations/World Health Organization)...
August 16, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28801706/seasonal-distribution-source-identification-and-toxicological-risk-assessment-of-polycyclic-aromatic-hydrocarbons-pahs-in-sediments-from-wadi-el-bey-watershed-in-tunisia
#14
Imen Gdara, Ines Zrafi, Catia Balducci, Angelo Cecinato, Ahmed Ghrabi
Surface sediments were collected from the Watershed of Wadi El Bey in Tunisia to evaluate the degree of polycyclic aromatic hydrocarbons (PAHs) contamination. Sediments were collected during different seasons in 14 sites that received wastes from domestic effluent, industrial discharge, and agricultural drainage wastes. Twenty-six individual PAHs were analyzed. The total PAH contents (Σ PAHs) in surface sediments showed wide variability, ranging from 6.89 ± 0.05 to 340 ± 0.1 ng g(-1). The 4-, 5-, and 6-ring compounds were the most abundant PAHs detected at the majority of sites...
August 11, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28791460/migration-of-ag-in-sn-sb-and-bi-and-their-chemical-forms-in-a-monolith-lysimeter-filled-with-a-contaminated-andosol
#15
Tomoyoshi Murata, Masami K Koshikawa, Mirai Watanabe, Hong Hou, Takejiro Takamatsu
Despite the wide use of trace metals in various technologies, such as chemical industries and electronic equipment, insufficient information is available on their behavior in the environment. We investigated changes in chemical forms and vertical distribution during the migration processes of trace metals, whose usage is currently increasing rapidly, such as Ag, In, Sn, Sb, and Bi, in soil contaminated with the equivalent of 50-100 times the background concentrations of these metals using an indoor control type monolith lysimeter filled with Andosol during an 8-year monitoring period...
August 8, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28770281/determination-of-the-extent-of-trace-metals-pollution-in-soils-sediments-and-human-hair-at-e-waste-recycling-site-in-ghana
#16
Takashi Tokumaru, Hirokazu Ozaki, Siaw Onwona-Agyeman, John Ofosu-Anim, Izumi Watanabe
The concentrations of trace elements (Mg, Al, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, As, Se, Rb, Sr, Y, Mo, Cd, In, Sn, Sb, Cs, Ba, Tl, Pb, and Bi) in soils, sediment, human hair, and foodstuff collected around the electronic waste (e-waste) recycling sites in Accra, Ghana were detected using inductively coupled plasma-mass spectrometry (ICP-MS). High levels of Cu, Zn, Mo, Cd, In, Sn, Sb, and Pb were observed in soils collected from the e-waste recycling sites. Four sequential extraction procedures were used to evaluate the mobility and bioavailability of metals (Cu, Zn, Cd, Sb, and Pb)...
August 2, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28770280/glucuronide-and-sulfate-conjugates-of-bisphenol-a-chemical-synthesis-and-correlation-between-their-urinary-levels-and-plasma-bisphenol-a-content-in-voluntary-human-donors
#17
Ka-Lok Ho, Ka-Ki Yuen, Man-Shan Yau, Margaret B Murphy, Yi Wan, Bonnie M-W Fong, Sidney Tam, John P Giesy, Kelvin S-Y Leung, Michael H-W Lam
Bisphenol A (BPA) glucuronide and sulfate conjugates are major products of Phase II metabolism of BPA in humans. In the past, their determination in body fluids usually involves tedious enzymatic hydrolysis and multiresidual analysis. The recent availability of authentic standards of these conjugates enables our better understand of the human metabolism of BPA and the distribution of their metabolites in body fluids. In this work, we report the chemical synthesis and purification of BPA mono- and di-glucuronide and BPA mono- and di-sulfate...
August 2, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28756463/a-comparative-evaluation-of-different-sediment-quality-guidelines-for-metal-and-metalloid-pollution-in-the-xiangjiang-river-hunan-china
#18
Hui Liu, Kejing Zhang, Liyuan Chai, Zhihui Yang, Weichun Yang, Qi Liao, Huan Li, Yi Liu
To evaluate intensively the quality of the sediments contaminated by heavy metals and metalloids in the Xiangjiang River, 52 surface sediment samples were collected at 13 sites and different combinations of empirical and theoretical sediment quality indexes, the consensus-based sediment quality guidelines, sediment toxicity degree, and equilibrium partitioning method were applied. The average contents of Cd, Pb, Cu, Zn, Hg, Cr, and As in the sampled surface sediments were significantly higher than the background values of trace elements in soils of Hunan Province, China...
July 29, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28735361/concentrations-source-identification-and-lung-cancer-risk-associated-with-springtime-pm2-5-bound-polycyclic-aromatic-hydrocarbons-pahs-in-nanjing-china
#19
Chong Chen, Zhonghuan Xia, Minmin Wu, Qianqian Zhang, Tao Wang, Liping Wang, Hao Yang
This study concentrated on the pollution level, sources, and lung cancer risk of PM2.5-bound polycyclic aromatic hydrocarbons (PAHs) in spring in Nanjing, China. The PM2.5 samples were collected in spring of the year 2016 in Nanjing. Sixteen United States Environmental Protection Agency priority PAHs were extracted and analyzed after sampling. The mean concentrations of PAHs and BaPeq were 3.98 ± 1.01 and 0.29 ± 0.08 ng/m(3), respectively, which is a low level among results from regions worldwide. The diurnal variations of PAHs and BaPeq concentrations showed a relatively high level in the early morning, at the morning rush time of work and traffic transportation, and in the evening traffic peak hours...
July 22, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28718158/the-extent-of-heavy-metal-pollution-and-their-potential-health-risk-in-topsoils-of-the-massively-urbanized-district-of-shanghai
#20
Syed Taseer Abbas Jaffar, Long-Zhu Chen, Hassan Younas
Urbanization and industrialization increase the concentrations of heavy metals in soils, which affect human health. A total of 127 topsoil samples were collected from the massively urbanized and industrialized district of Shanghai: Baoshan District. The sampling sites were isolated based on the land-use practice: industrial area, roadside area, residential area, and agricultural area. The absolute concentrations of heavy metals (Zn, Cr, Ni, Mn, Cu, Pb, and Cd) were determined using atomic absorption spectrometry and compared with Shanghai and the National soil background values...
July 17, 2017: Archives of Environmental Contamination and Toxicology
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