摘要
当前研究显示污水处理厂出水是地表水体中新烟碱类杀虫剂的重要来源之一,但其具体检测与水生态风险评估工作却相对匮乏。本文测定了广州5个污水处理厂出水中的新烟碱类杀虫剂及其转化产物残留,并对其存在的水生态风险进行了评估。结果表明:新烟碱类杀虫剂母体化合物及其转化产物在广州污水处理厂出水中普遍检出,母体化合物和转化产物检出总浓度范围分别为(217±18)~(599±31)ng/L和(63.0±3.0)~(131±9)ng/L。广州污水处理厂出水中的吡虫啉及其转化产物吡虫啉胍和吡虫啉烯烃会对当地水生态系统构成风险。
Current studies indicates that effluent from wastewater treatment plants was one of the main source of neonicotinoids in surface water.However,the specific work of determination and aquatic ecological risk assessment of neonicotinoids is lacked.In this study,the residues of neonicotinoids and their transformation products in effluent from five wastewater treatment plants in Guangzhou were determined and the aquatic ecological risks were also assessed.The results showed that neonicotinoids and their transformation products were widely detected in effluent from the wastewater treatment plants in Guangzhou,with the total concentrations being(217±18)~(599±31)and(63.0±3.0)~(131±9)ng/L,respectively.The residue of imidacloprid and its transformation products imidacloprid-guanidine and imidacloprid-olefin may cause risks to the local aquatic ecosystem.
作者
谭保祥
易皓
马雪
王丽
刘跃丹
熊晶晶
TAN Bao-xiang;YI Hao;MA Xue;WANG Li;LIU Yue-dan;XIONG Jing-jing(School of Environment,Jinan University,Guangzhou 511443,China;South China Forensic Center of Environmental Damage,South China Institute of Environmental Science,Ministry of Ecology and Environment,Guangzhou 510655,China)
出处
《南昌航空大学学报（自然科学版）》
CAS
2021年第4期51-57,共7页
Journal of Nanchang Hangkong University(Natural Sciences)
基金
国家自然科学基金(42007366)
广东省普通高校创新团队项目(自然科学)(2020KCXTD005)
中央级公益性科研院所基本科研业务费专项资金资助项目(PM-zx703-202104-066,PM-zx703-201904-074)。
关键词
污水处理厂
新烟碱类杀虫剂
转化产物
水生态风险评估
wastewater treatment plants
neonicotinoid insecticides
transformation products
aquatic ecological risk assessment
