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Pesticides in aquatic environments and their removal by adsorption methods.
Chemosphere ( IF 8.8 ) Pub Date : 2020-04-02 , DOI: 10.1016/j.chemosphere.2020.126646
Amin Mojiri 1 , John L Zhou 2 , Brett Robinson 3 , Akiyoshi Ohashi 1 , Noriatsu Ozaki 1 , Tomonori Kindaichi 1 , Hossein Farraji 3 , Mohammadtaghi Vakili 4
Affiliation  

Although pesticides are widely used in agriculture, industry and households, they pose a risk to human health and ecosystems. Based on target organisms, the main types of pesticides are herbicides, insecticides and fungicides, of which herbicides accounted for 46% of the total pesticide usage worldwide. The movement of pesticides into water bodies occurs through run-off, spray drift, leaching, and sub-surface drainage, all of which have negative impacts on aquatic environments and humans. We sought to define the critical factors affecting the fluxes of contaminants into receiving waters. We also aimed to specify the feasibility of using sorbents to remove pesticides from waterways. In Karun River in Iran (1.21 × 105 ng/L), pesticide concentrations are above regulatory limits. The concentration of pesticides in fish can reach 26.1 × 103 μg/kg, specifically methoxychlor herbicide in Perca fluviatilis in Lithuania. During the last years, research has focused on elimination of organic pollutants, such as pesticides, from aqueous solution. Pesticide adsorption onto low-cost materials can effectively remediate contaminated waters. In particular, nanoparticle adsorbents and carbon-based adsorbents exhibit high performance (nearly 100%) in removing pesticides from water bodies.

中文翻译:

水生环境中的农药及其吸附方法的去除。

尽管农药广泛用于农业,工业和家庭,但它们对人类健康和生态系统构成了威胁。基于目标生物,农药的主要类型为除草剂,杀虫剂和杀真菌剂,其中除草剂占全球农药总使用量的46%。农药进入水体的过程是通过径流,喷雾漂移,浸出和地下排水发生的,所有这些都对水生环境和人类产生了负面影响。我们试图定义影响污染物进入接收水的通量的关键因素。我们还旨在说明使用吸附剂从水道中去除农药的可行性。在伊朗的卡伦河(1.21×105 ng / L),杀虫剂浓度高于监管限值。鱼中农药的浓度可以达到26.1×103μg/ kg,特别是立陶宛的Perca fluviatilis中的甲氧基氯除草剂。在过去的几年中,研究集中于从水溶液中消除有机污染物,例如农药。农药吸附到低成本材料上可以有效修复受污染的水域。特别地,纳米颗粒吸附剂和碳基吸附剂在从水体中去除农药方面表现出很高的性能(接近100%)。
更新日期:2020-04-03
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