A Pilot Nationwide Survey on the Concentrations of Neonicotinoids and Their Metabolites in Indoor Dust from China: Application for Human Exposure
A Pilot Nationwide Survey on the Concentrations of Neonicotinoids and Their Metabolites in Indoor Dust from China: Application for Human Exposure
复制标题
中国室内灰尘中新烟碱类杀虫剂及其代谢物浓度的全国试点调查：人体暴露应用
DOI：
10.1007/s00128-022-03600-9
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发表时间：
2022-08-18
影响因子：
2.7
通讯作者：
Zhang, Tao
中科院分区：
文献类型：
--
作者：
Huang, Yingyan;Zhang, Bo;Zhang, Tao
本研究评估了从中国12个城市收集的室内灰尘中六种母体类尼古丁（p-NEO）和四种代谢物（m-NEO）的残留水平。啶虫脒（ACE）和吡虫啉（IMI）是主要的p-NEO（检测率：98%），中位值分别为4.54纳克/克干重和7.48纳克/克干重。N-去甲基-啶虫脒是最重要的间近地天体，中位值为0.69纳克/克干重，而其他间近地天体很少被检测到（检测率：< 15%）。ACE与噻虫啉（THD）之间存在显著相关性（p < 0.01），表明它们可能同时使用。ACE与N-dm-ACE显著相关（p < 0.01），提示ACE在室内环境中降解。近地物体通过吸入尘埃而产生的估计日摄入量远低于近地物体可接受的日摄入量。据我们所知，这项研究提供了关于中国室内灰尘中近地物体出现情况的全国性基线调查。
The present study assessed the residue levels of six parent neonicotinoids (p-NEOs) and four metabolites (m-NEOs) in indoor dust collected from 12 cities of China. Acetamiprid (ACE) and imidacloprid (IMI) were the predominated p-NEOs (detection rates: 98%) with the median values at 4.54 and 7.48 ng/g dry weight (dw), respectively. N-demethyl-acetamiprid (N-dm-ACE) was the most important m-NEO with the median value at 0.69 ng/g dw, while other m-NEOs were rarely detected (detection rates: < 15%). Significant correlation between ACE and thiacloprid (THD) was observed (p < 0.01), indicating their probably concurrent applications. ACE was significantly correlated to N-dm-ACE (p < 0.01), implicating the degradation of ACE in indoor environment. The estimated daily intake (EDIing) of NEOs via dust ingestion were far lower than the acceptable daily intake for NEOs. To our knowledge, this study provided a baseline nationwide investigation on the occurrence of NEOs in indoor dust of China.