【摘要】：目的對深圳市飲用水中農(nóng)藥殘留進(jìn)行非致癌健康風(fēng)險評價及年度趨勢分析。方法收集、分析全市2011—2013年出廠水、末梢水和二次供水水質(zhì)監(jiān)測數(shù)據(jù),借鑒美國國家環(huán)境保護(hù)局(USEPA)推薦的風(fēng)險評價模型,對七氯、五氯酚、六六六、六氯苯、滴滴涕、馬拉硫磷、草甘膦、樂果、滅草松、莠去津、百菌清和呋喃丹12種農(nóng)藥殘留進(jìn)行成人和兒童的健康風(fēng)險評價。結(jié)果 12011—2013年共有84份出廠水、11份末梢水和1份二次供水樣品檢測了七氯等12個農(nóng)藥指標(biāo),所測樣品指標(biāo)最大值均未超過GB 5749—2006《生活飲用水衛(wèi)生標(biāo)準(zhǔn)》規(guī)定的限值。22011—2013年出廠水中七氯等12種農(nóng)藥殘留對成人和兒童的非致癌健康風(fēng)險HIT均大于1(2.323~6.312),其中最主要的風(fēng)險來自樂果殘留,其非致癌健康風(fēng)險HIi均大于1(1.995~5.094);而且有逐年上升趨勢:成人HIT2011年(2323.18×10-3)2012年(2340.18×10-3)2013年(2431.97×10-3);兒童HIT2011年(2965.07×10-3)2012年(2986.77×10-3)2013年(3103.93×10-3)。兒童的健康風(fēng)險高于成人。3末梢水的均值風(fēng)險HIT末(2619.64×10-3)大于出廠水的HIT出(2366.92×10-3)。不論出廠水還是末梢水,樂果均是最主要的風(fēng)險來源(HIi為2.003~3.991),其次是六氯苯和七氯。結(jié)論深圳市飲用水中農(nóng)藥殘留健康風(fēng)險已超過警戒值,最主要的風(fēng)險來源是樂果,而且有逐年上升趨勢,兒童的健康風(fēng)險高于成人。
[Abstract]:Objective to evaluate the non-carcinogenic health risk and annual trend of pesticide residues in drinking water in Shenzhen. Methods the monitoring data of factory water, terminal water and secondary water supply in the city from 2011 to 2013 were collected and analyzed, and the risk assessment model recommended by (USEPA) of the National Environmental Protection Agency of the United States was used for reference to seven chloro, pentachlorophenol, hexachlorobenzene and DDT. 12 pesticide residues of malathion, glyphosate, dimethoate, pine, atrazin, chlorothalonil and furan were evaluated for health risk in adults and children. Results from 2011 to 2013, a total of 84 samples of factory water, 11 samples of terminal water and 1 sample of secondary water supply were tested for 12 pesticide indexes such as seven chlorine. The maximum value of the measured sample index did not exceed the limit value specified in GB 5749 2006 drinking Water Sanitary Standard. 2the non-carcinogenic health risk of 12 pesticide residues, such as seven chlorine, in factory water from 2011 to 2013 for adults and children was greater than 1 (2.323 鈮，

本文編號：2484962