Tissue-Specific Accumulation of Orally Administered Short- and Medium-Chain Chlorinated Paraffins in Honeybees (Apis mellifera L.)

文献类型： 外文期刊

第一作者： Dong, Shujun

作者： Dong, Shujun;Zhang, Su;Wu, Xingyi;Xin, Jianing;Fan, Yaqun;Wang, Peilong;Qi, Suzhen;Wang, Xue;Wu, Liming;Wu, Xingyi;Xin, Jianing

作者机构：

关键词： chlorinated paraffins; honeybee; tissue distribution; bioaccumulation; elimination

期刊名称：ENVIRONMENTAL SCIENCE & TECHNOLOGY （ 影响因子：10.8； 五年影响因子：11.6 ）

ISSN： 0013-936X

年卷期： 2024 年 58 卷 31 期

页码：

收录情况： SCI

摘要： The prevalence and distribution of chlorinated paraffins (CPs) have been extensively studied in various matrices and organisms; however, there is a lack of information about insects, particularly in honeybees. To address this gap, we studied young honeybee workers exposed to short- and medium-chain CPs (SCCPs and MCCPs) at an environmentally relevant concentration of 10 mg/L for 7 days, followed by a 7-day elimination period. Results indicated that CPs could transfer into the head after oral consumption and SCCPs and MCCPs exhibited clear bioaccumulation trends: midgut > hindgut > head. An evaluation of congener group distribution patterns demonstrated that the dominant congener groups in all target tissues were C11-13Cl7-8 and C14Cl7-8 for SCCPs and MCCPs, respectively, consistent with the treated CP standards. In honeybees, a significant negative relationship was observed for the log concentration of MCCP congener groups and their log K-OW, but not with their log K-OA. Conversely, no such correlation was found for SCCPs. These findings suggest that honeybees have a high potential to bioaccumulate MCCPs, particularly those with a low log K-OW, and exhibit weak selectivity for SCCPs.

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