کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6307425 | 1618833 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Stereoselective fate kinetics of chiral neonicotinoid insecticide paichongding in aerobic soils
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کلمات کلیدی
LSCWHCCECIPPDATDiastereoselective - DiastereoselectctivePesticide - آفت کشBound residue - باقی ماندهLiquid scintillation counter - ضد شمعدان مایعCEC, Cation exchange capacity - ظرفیت تبادل کاتیونیWater-holding capacity - ظرفیت نگهداری آبorganic matter - ماده آلیMineralization - معدنی سازی یا کانی سازی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Man-made chemicals such as pesticides, when released into the soil environment, are transformed into extractable residue (ER), bound residue (BR), or mineralized. These processes all play a pivotal role in the risk assessment for the use of man-made chemicals. In this study, BR, ER, and mineralization of a novel chiral pesticide, paichongding (IPP), 1-((6-chloropyridin-3-yl)methyl)-7-methyl-8-nitro-5-propoxy-1,2,3,5,6,7-hexahydro-imidazo[1,2-a]pyridine, were investigated in different soils under aerobic conditions. Significant specificity was observed for diastereoisomers of IPP in the formation of BR or mineralization in neutral and alkaline soils. In contrast, no significant difference was found between enantiomers. The overall mineralization was less than 8% of the applied radioactivity and was related to soil pH. Our findings suggest that the environmental fate of chiral pesticides may be influenced by many factors such as soil properties (e.g. pH). More comprehensive and individualized risk assessments should be carried out for individual stereoisomers of a chiral product.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 138, November 2015, Pages 170-175
Journal: Chemosphere - Volume 138, November 2015, Pages 170-175
نویسندگان
Qiuguo Fu, Wei Wang, Haiyan Wang, Jianbo Zhang, Jiajun Shen, Zhong Li, Qingfu Ye,