毛连纲¹,
周艳明²,
张兰¹,
张燕宁¹,
姜辉²,
余海涛¹,
蒋红云¹
1. 中国农业科学院植物保护研究所, 北京 100193;
2. 农业部农药检定所, 北京 100125

作者简介: 毛连纲(1987-),男,山东潍坊人,博士,助理研究员,研究方向为农药生态毒理及应用技术,E-mail:maoliangang@126.com.

基金项目: 农业部公益性行业(农业)科研专项项目(No. 201503107)


中图分类号: X171.5

Risk Assessment of Azoxystrobin·thifluzamide 4% Spreading Oil Water Overflow in Rice Paddies on Aquatic Ecosystem Based on TOP-RICE Model

Mao Liangang¹,
Zhou Yanming²,
Zhang Lan¹,
Zhang Yanning¹,
Jiang Hui²,
Yu Haitao¹,
Jiang Hongyun¹
1. Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
2. Institute for the Control of Agrochemicals, Ministry of Agriculture, Beijing 100125, China

CLC number: X171.5

-->

摘要
HTML全文
图(0)表(0)
参考文献(0)
相关文章
施引文献
资源附件(0)
访问统计

摘要:为评估嘧菌酯·噻呋酰胺4%展膜油剂在我国稻田水溢出对水生生态系统的风险，本研究依据中华人民共和国农业行业标准NY/T 2882.2—2016《农药登记 环境风险评估指南 第2部分：水生生态系统》，采用TOP-RICE暴露模型分别单独评估了嘧菌酯和噻呋酰胺2种有效成分稻田滴撒方式应用时水溢出对水生生态系统的风险。其中，TOP-RICE初级暴露模型中有我国连平和南昌2个水稻-地下水暴露场景，每个场景都对分蘖期和拔节期进行分别评估。分析结果显示，嘧菌酯·噻呋酰胺4%展膜油剂中的嘧菌酯按照申请的良好农业规范(GAP)使用，生物富集风险可接受，初级风险评估对无脊椎动物(急性)和无脊椎动物(慢性)风险不可接受，但经中宇宙研究后，在连平和南昌2个场景点，均为拔节期用药对无脊椎动物的风险可接受，但分蘖期用药对无脊椎动物的风险不可接受；嘧菌酯·噻呋酰胺4%展膜油剂中的噻呋酰胺按照申请的GAP使用，生物富集带来的风险可以接受，经初级风险评估风险均可接受。在忽略2种有效成分相互间作用时，初步认为嘧菌酯·噻呋酰胺4%展膜油剂在我国稻田拔节期按照GAP要求施用时水溢出对水生生态系统的风险可接受，但应避免在分蘖期用药，以免其中的有效成分嘧菌酯对水生无脊椎动物产生不良影响。
关键词: 嘧菌酯/
噻呋酰胺/
展膜油剂/
水生生态系统/
TOP-RICE模型/
风险评估

Abstract:This study aims to assess the risk of azoxystrobin·thifluzamide 4% spreading oil water overflow on aquatic ecosystem in rice paddies. The risk assessments of azoxystrobin and thifluzamide applied by dropping method were based on TOP-RICE model by NY/T 2882.2-2016 “Guidance of Environmental Risk Assessment for Pesticide Registration Part 2: Aquatic Ecosystem”. Two exposure scenarios Lianping and Nanchang in China at two stages i.e. tillering and elongation were considered for risk assessment. Risk assessments of azoxystrobin applied as Good Agricultural Practices (GAP) revealed that bioaccumulation risk was acceptable, but the primary risk was unacceptable for both invertebrates (acute) and invertebrates (chronic). While, in case of mesocosm, it was founded that the risk was acceptable for invertebrates only at elongation stage on both exposure scenarios Lianping and Nanchang. Risk assessments of thifluzamide applied as GAP revealed that bioaccumulation risk and primary risk were acceptable. In all, ignoring the interaction effects of two active components, the water overflow risk of azoxystrobin·thifluzamide 4% spreading oil on aquatic ecosystem was acceptable only at elongation stage in rice paddies in China and the application of the pesticide should be avoided in tillering stage because of potential adverse effects of azoxystrobin on invertebrates.
Key words:azoxystrobin/
thifluzamide/
spreading oil/
aquatic ecosystem/
TOP-RICE model/
risk assessment.