Increased urinary 8-hydroxy-2��-deoxyguanosine levels in workers exposed to di-(2-ethylhexyl) phthalate in a waste plastic recycling site in China

Background

Di-(2-ethylhexyl) phthalate (DEHP) is a common plasticizer used in industrial and diverse consumer products. Animal studies indicate DEHP caused developmental, reproductive, and hepatic toxicities. However, human studies of the potential effects of DEHP are limited.

Methods

The exposed site with a history of over 20 years of waste plastic recycling was located in Hunan Province, China. The reference site without known DEHP pollution source was about 50 km far away from the exposed site. In this study, 181 workers working in plastic waste recycling and 160 gender?Cage matched farmers were recruited. DEHP concentrations in water and cultivated soil samples, serum thyroid-stimulating hormone, malondialdehyde (MDA), superoxide dismutase (SOD), urinary 8-hydroxy-2??-deoxyguanosine (8-OHdG), and micronuclei frequency in human capillary blood lymphocytes were analyzed.

Results

Mean levels of DEHP were greater in environment at the recycling site than at reference site (industry wastewater for the exposed: 42.43 ??g/l; well water: 14.20 vs. 0.79 ??g/l, pond water: 135.68 vs. 0.37 ??g/l, cultivated soil: 13.07 vs. 0.81 mg/kg, p?p?p?Conclusions The occupational DEHP exposure might contribute to oxidative deoxyribonucleic acid damage in the male workers.     

电化学预处理提高剩余污泥好氧消化性能研究

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利用成组生物测试评估某城市典型污水处理工艺

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环境行政执法难的理性分析与实践对策

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Determination of the maximum effective burning velocity of dust–air mixtures in constant volume combustion

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化学破乳法在钻井废水处理中的应用综述

针对钻井废水含油量高、化学需氧量高、悬浮物浓度及色度高的特点,综述了化学破乳法在钻井废水处理中的应用,详细阐述了化学法破乳的机理、絮凝剂的种类和性能。并提出絮凝剂逐渐由无机向有机和天然高分子化合物,由单一型向复合型转化的发展方向。     

论市场经济体制下的安全生产监督管理工作

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两种生态下粳稻近等基因系形态性状与糙米元素间的关联性

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云南稻种磷高效特性相关性状的生态差异

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