Graduate Program in Environmental Toxicology, University of California, Riverside, CA, 92521, USA.
Department of Entomology, University of California, 417 Entomology Building, Riverside, CA, 92521, USA.
Environ Monit Assess. 2018 Feb 8;190(3):125. doi: 10.1007/s10661-018-6503-z.
Many countries are utilizing reclaimed wastewater for agriculture as water demands due to drought, rising temperatures, and expanding human populations. Unfortunately, wastewater often contains biologically active, pseudopersistant pharmaceuticals, even after treatment. Runoff from agriculture and effluent from wastewater treatment plants also contribute high concentrations of pharmaceuticals to the environment. This study assessed the effects of common pharmaceuticals on an agricultural pest, the aphid Myzus persicae (Sulzer, Hemiptera: Aphididae). Second instar nymphs were transferred to bell peppers (Capsicum annuum) that were grown hydroponically. Treatment plants were spiked with contaminants of emerging concern (CECs) at environmentally relevant concentrations found in reclaimed wastewater. M. persicae displayed no differences in population growth or microbial community differences due to chemical treatments. Plants, however, displayed significant growth reduction in antibiotic and mixture treatments, specifically in wet root masses. Antibiotic treatment masses were significantly reduced in the total and root wet masses. Mixture treatments displayed an overall reduction in plant root wet mass. Our results suggest that the use of reclaimed wastewater for crop irrigation would not affect aphid populations, but could hinder or delay crop production.
许多国家正在利用再生水进行农业灌溉，因为干旱、气温上升和人口增长导致用水需求增加。不幸的是，废水即使经过处理，通常也含有具有生物活性的假持久性药物。农业径流和废水处理厂的污水也会向环境中输送高浓度的药物。本研究评估了常见药物对农业害虫烟粉虱（Myzus persicae）的影响。将二龄若虫转移到水培甜椒上。在与再生废水中发现的环境相关浓度相当的浓度下，向处理厂中添加了新兴关注污染物（CECs）。由于化学处理，烟粉虱的种群增长或微生物群落差异没有显示出任何差异。然而，植物在抗生素和混合物处理下的生长显著减少，特别是在湿根质量方面。抗生素处理的总湿质量和根湿质量显著减少。混合物处理显示出植物根湿质量的整体减少。我们的结果表明，使用再生水进行作物灌溉不会影响蚜虫种群，但可能会阻碍或延迟作物生产。
