Triclosan alterations of estuarine phytoplankton community structure.
Triclosan alterations of estuarine phytoplankton community structure.
复制标题
三氯生对河口浮游植物群落结构的改变。
DOI：
10.1016/j.marpolbul.2017.03.056
复制
发表时间：
2017
影响因子：
5.8
通讯作者：
Sarah N. Hylton
中科院分区：
文献类型：
--
作者：
J. Pinckney;L. Thompson;Sarah N. Hylton
药品和个人护理产品中的抗菌剂添加剂是一个主要的环境问题，因为它们对水生生态系统有潜在的生态影响。三氯生(TCS)已被用作各种介质的防腐剂、消毒剂和防腐剂。采用天然浮游植物群落的生物测定方法，研究了天花粉对河口浮游植物群落组成的亚致死和致死效应，以测定不同浓度的天花粉对不同浓度的天花粉的响应。结果表明，1~2 0 0μg的天花粉对L−1.浮游藻类(硅藻、绿藻、暴露导致浮游植物群落组成发生重大变化，浓度低至1.0gμg TCS L−[1]。本研究证明河口生态系统对TCS暴露的敏感性，并强调了城市化河口典型环境浓度下浮游植物群落组成的潜在变化。
Antimicrobial additives in pharmaceutical and personal care products are a major environmental concern due to their potential ecological impacts on aquatic ecosystems. Triclosan (TCS) has been used as an antiseptic, disinfectant, and preservative in various media. The sublethal and lethal effects of TCS on estuarine phytoplankton community composition were investigated using bioassays of natural phytoplankton communities to measure phytoplankton responses to different concentrations of TCS ranging from 1 to 200 μg l− 1. The EC50(the concentration of an inhibitor where the growth is reduced by half) for phytoplankton groups (diatoms, chlorophytes, cryptophytes) examined in this ranged from 10.7 to 113.8 μg TCS l− 1. Exposures resulted in major shifts in phytoplankton community composition at concentrations as low as 1.0 μg TCS l− 1. This study demonstrates estuarine ecosystem sensitivity to TCS exposure and highlights potential alterations in phytoplankton community composition at what are typically environmental concentrations of TCS in urbanized estuaries.