Risk Assessment of Health Effects Accompanied with Run-off of Pesticides from Agricultural Land and Its Control

农用地农药径流对健康影响的风险评估及控制

基本信息

批准号：
03832050
负责人：
HOSOMI Masaaki
金额：
$ 1.28万
依托单位：
Tokyo University of Agriculture and Technology (1992-1993)National Institute for Environmental Studies (1991)
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1993
项目状态：
已结题

项目摘要

The amount of synthetic chemicals which are used in agriculture have been increased year by year. It has been reported the occurrence of synthetic chemicals, particularly pesticides, in drinking water. However, the information of the behavior of them their degenerates, their biological effects including human health risks are scarce. Therefore it is very difficult to implement health risk assessment and management in ambient water but also drinking water. We conducted the survey on the behaviors of pesticides and their generates in ambient water and drinking water production system in order to assess health risks accompanied with run-off of pesticides from agricultural land and find its control measure.Herbicides and pesticides such s DDVP and diazinon in river water in Kasumigaura Basin were detected as ppb levels in the period of May-June and September-October. 0.29% of total applied CNP and 3% of total applied simetorin were discharged into the public water area from rice fields.The conventional water purification system composed by coagulation, sedimentation, and sand filtration processes could not be expected its potential to remove pesticides in raw water. It was showe that the advanced water purification system composed by the conventional water purification system and ozonation and granular activated carbon filter could remove most of pesticides excluding those have a high solubility such as simazine in raw water.

农业中使用的合成化学品的量逐年增加。据报道，饮用水中存在合成化学物质，特别是农药。然而，关于它们的行为、它们的退化、它们的生物效应（包括人类健康风险）的信息却很少。因此，对环境水和饮用水实施健康风险评估和管理非常困难。我们对环境水和饮用水生产系统中农药及其生成物的行为进行了调查，以评估农田农药径流带来的健康风险并找到其控制措施。除草剂和敌敌畏、二嗪农等农药5月至6月和9月至10月期间，霞浦盆地的河水中检测到了ppb水平。稻田中CNP施用总量的0.29%和西米托林施用总量的3%被排放到公共水域。传统的由混凝、沉淀和砂滤工艺组成的净水系统无法预期其去除原水中农药的潜力。水。结果表明，由传统净水系统与臭氧化和颗粒活性炭过滤器组成的先进净水系统可以去除原水中除西玛津等溶解度较高的农药外的大部分农药。