کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5747657 | 1618922 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Derivation of predicted no-effect concentration and ecological risk for atrazine better based on reproductive fitness
ترجمه فارسی عنوان
تشخیص غلظت پیش آگهی بدون اثر و خطر زیست محیطی برای آترازین بر اساس آمادگی تولید مثل
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کلمات کلیدی
آراازین، سمیت تولید مثل، غلظت بدون اثر پیش بینی شده، خطر زیست محیطی، احتمالات مشترک،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
چکیده انگلیسی
Atrazine (ATZ) is an herbicide most commonly used in China and other regions of the world. It is reported toxic to aquatic organisms, and frequently occurs at relatively high concentrations. Currently, ATZ has been proved to affect reproduction of aquatic species at much lower levels. So it is controversial to perform ecological risk assessment using predicted no-effect concentrations (PENCs) derived from traditional endpoints, which fail to provide adequate protection to aquatic organisms. In this study, PNECs of ATZ were derived based on six endpoints of survival, growth, behavior, biochemistry, genetics and reproduction. The PNEC derived from reproductive lesion was 0.044 μg ATZ Lâ1, which was obviously lower than that derived from other endpoints. In addition, a tiered ecological risk assessment was conducted in the Taizi River based on six PNECs derived from six categories of toxicity endpoints. Results of these two methods of ecological risk assessment were consistent with each other, and the risk level of ATZ to aquatic organisms reached highest as taking reproductive fitness into account. The joint probability indicated that severe ecological risk rooting in reproduction might exist 93.9% and 99.9% of surface water in the Taizi River, while 5% threshold (HC5) and 1% threshold (HC1) were set up to protect aquatic organisms, respectively. We hope the present work could provide valuable information to manage and control ATZ pollution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecotoxicology and Environmental Safety - Volume 142, August 2017, Pages 464-470
Journal: Ecotoxicology and Environmental Safety - Volume 142, August 2017, Pages 464-470
نویسندگان
Lei Zheng, Yizhang Zhang, Zhenguang Yan, Juan Zhang, Linlin Li, Yan Zhu, Yahui Zhang, Xin Zheng, Jiangyue Wu, Zhengtao Liu,