長三角地區(qū)池塘養(yǎng)殖水產(chǎn)品體內(nèi)農(nóng)藥類污染與食用風(fēng)險(xiǎn)評(píng)價(jià)
發(fā)布時(shí)間:2018-05-19 11:47
本文選題:農(nóng)藥污染 + 水產(chǎn)品。 參考:《生態(tài)毒理學(xué)報(bào)》2017年03期
【摘要】:為了解池塘養(yǎng)殖水產(chǎn)品體內(nèi)的農(nóng)藥污染情況,以便為水產(chǎn)品質(zhì)量評(píng)價(jià)及保障當(dāng)?shù)鼐用竦娘嬍辰】堤峁┛茖W(xué)依據(jù),本研究采用氣相色譜質(zhì)譜聯(lián)用法(GC-MS)對(duì)長三角地區(qū)13個(gè)養(yǎng)殖池塘中5類(蟹類、鱉類、蚌類、蝦類、魚類)水產(chǎn)品體內(nèi)9種有機(jī)磷農(nóng)藥(OPPs)、8種有機(jī)氯農(nóng)藥(OCPs)以及4種擬除蟲菊酯類農(nóng)藥(SPs)進(jìn)行了檢測(cè),并初步分析了其污染來源。結(jié)果表明,水產(chǎn)品體內(nèi)3類農(nóng)藥均有檢出,但殘留水平均不高,OPPs殘留總量為未檢出至299 ng·g-1(dw),三唑磷、伏殺硫磷、喹硫磷和毒死蜱較易在水產(chǎn)品體內(nèi)蓄積;OCPs殘留總量為16~82 ng·g-1(dw),主要污染物為六六六(HCHs),主要來自歷史殘留;SPs殘留總量為44~89 ng·g-1(dw),主要污染物為高效氯氟氰菊酯。水產(chǎn)品體內(nèi)的農(nóng)藥污染可能與養(yǎng)殖池塘中的沉積物污染密切相關(guān)。5類水產(chǎn)品體內(nèi)3類農(nóng)藥的總風(fēng)險(xiǎn)指數(shù)(HI)為0.0020~0.046,遠(yuǎn)小于1,因此,長三角地區(qū)由3類農(nóng)藥造成的健康風(fēng)險(xiǎn)處于安全水平。
[Abstract]:In order to understand the pesticide pollution in aquatic products of pond culture, and to provide scientific basis for evaluating the quality of aquatic products and safeguarding the diet health of local people, In this study, gas chromatography-mass spectrometry (GC-MS) was used to study 5 species (crabs, turtles, mussels, shrimps) in 13 ponds in Yangtze River Delta. Fish) 9 organophosphorus pesticides OCPs (8 organochlorine pesticides) and 4 pyrethroid pesticides (SPs) in aquatic products were detected and their pollution sources were preliminarily analyzed. The results showed that all three pesticides were detected in aquatic products, but the total amount of OPPs was not detected to 299 ng g-1dwn, triazophos, thionophos, etc. Quinthion and chlorpyrifos can easily accumulate OCPs in aquatic products. The total residue of OCPs in aquatic products is 1682ng / g ~ (-1) DW ~ (-1), the main pollutant is HCHsN (HCHsN), and the main pollutant is permethrin (HCH). Pesticide pollution in aquatic products may be closely related to sediment pollution in aquaculture ponds. 5. The total risk index of three pesticides in aquatic products is 0.0020 ~ 0.046, which is far less than 1, so, The health risk caused by 3 kinds of pesticides in Yangtze River Delta is at a safe level.
【作者單位】: 上海海洋大學(xué)水產(chǎn)動(dòng)物遺傳育種中心協(xié)同創(chuàng)新中心海洋生態(tài)與環(huán)境學(xué)院;
【基金】:養(yǎng)殖水中疏水性有機(jī)污染物的原位仿生監(jiān)測(cè)與去除(A1-2037-16-0001-12);農(nóng)業(yè)部淡水水產(chǎn)種質(zhì)資源重點(diǎn)實(shí)驗(yàn)室開放課題
【分類號(hào)】:X592;X820.4
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本文編號(hào):1909975
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