There is actually health concern about the uncontrolled use of pesticides, as some banned pesticides continue to be used in many regions of the world, especially in Latin America. Advanced analytical methods are thus required to detect pesticides in water. Common pesticide analysis is done by grab sampling of water volumes ranging from milliliters to liters. Grab sampling is suitable for moderate to high pesticide concentrations, but fails to detect trace levels and shows only a single-time snapshot of pesticide levels. Alternatively, passive sampling extracts and collects water directly in situ, thus allowing time for pollutants to be accumulated into the sampler. Passive sampling has recently become a major tool for extraction of organic contaminants in surface water, groundwater and wastewater. Diverse pollutants have been studied, such as pesticides, illicit and prescription drugs, metals, polycyclic aromatic hydrocarbons and cyanobacterial microcystin toxins. This review describes the main devices of passive sampling, used for the extraction of pesticides in waters.

实际上，人们对农药的无节制使用引起了健康方面的关注，因为世界上许多地区，特别是在拉丁美洲，仍然继续使用某些违禁农药。因此，需要先进的分析方法来检测水中的农药。普通农药分析是通过抽取从毫升到升的水量来完成的。抓取采样适用于中等到高浓度的农药，但无法检测到痕量水平，并且仅显示农药水平的一次性快照。或者，被动采样直接在原地提取和收集水，从而留出时间将污染物累积到采样器中。被动采样近来已成为提取地表水，地下水和废水中有机污染物的主要工具。研究了多种污染物，例如农药，非法和处方药，金属，多环芳烃和蓝藻微囊藻毒素。这篇综述描述了被动采样的主要设备，这些设备用于提取水中的农药。