本文選題：土壤汞 + 蔬菜汞　； 參考：《環(huán)境化學(xué)》2017年11期

【摘要】：采集瑪河流域140份土壤和126株蔬菜樣品進(jìn)行汞含量分析,檢測(cè)土壤礦物質(zhì)成分,分析污染狀況,探究表層土壤汞空間分布特征和來源,探討人體健康風(fēng)險(xiǎn).結(jié)果表明,研究區(qū)表層土壤汞含量最高,含量在0.001—0.901 mg·kg~(-1),平均值為0.187 mg·kg~(-1),是新疆背景值的11倍.土壤礦物成分相似,主要為石英、長(zhǎng)石、伊利石、蒙脫石、方解石.富集系數(shù)及潛在生態(tài)危害指數(shù)顯示,除工業(yè)區(qū)嚴(yán)重富集外其余為中度到輕度富集,整體處于嚴(yán)重生態(tài)危害,形成了以化工園為中心的點(diǎn)—面污染.地統(tǒng)計(jì)學(xué)和多元統(tǒng)計(jì)學(xué)表明,研究區(qū)汞含量空間變異大,存在顯著差異,化工園區(qū)汞含量最高,主要來源于工業(yè)生產(chǎn);其次是城市和農(nóng)業(yè)區(qū),主要受到城市生活垃圾和農(nóng)藥、交通的影響;人類活動(dòng)罕見的山區(qū)和沙漠地區(qū)含量最低.健康風(fēng)險(xiǎn)評(píng)價(jià)表明,土壤汞對(duì)兒童和成人的非致癌風(fēng)險(xiǎn)(HI)均在可接受范圍內(nèi),沙灣大型電解鋁廠周圍菊科蔬菜汞對(duì)人體造成非致癌風(fēng)險(xiǎn),其余區(qū)域均在可接受范圍內(nèi).
[Abstract]:140 soil and 126 vegetable samples in the ma he basin were collected to analyze the mercury content, to detect the soil mineral composition, analyze the pollution status, explore the spatial distribution characteristics and sources of the mercury in the surface soil, and explore the human health risk. The results show that the mercury content in the surface soil of the study area is the highest, the content is from 0.001 to 0.901 mg. Kg~ (-1), with an average of 0.187 mg Kg~ (-1) is 11 times the background value of Xinjiang. The soil mineral composition is similar, mainly quartz, feldspar, illite, montmorillite, calcite. The enrichment coefficient and the potential ecological hazard index show that the other is moderately to mild enrichment in addition to the serious enrichment of the industrial area, and the whole is in the severe ecological hazard, forming a point and surface pollution centered on the chemical garden. Geostatistics and multivariate statistics show that the spatial variation of mercury content in the study area is large and there are significant differences. The highest mercury content in the chemical industry park is from industrial production; secondly, urban and agricultural areas are mainly affected by urban living garbage and pesticides, and the traffic is the lowest in human activities. Health risks are the lowest. The assessment shows that the non carcinogenic risk (HI) of soil mercury in children and adults is within acceptable range. The mercury in the Compositae vegetables around the large electrolytic aluminum factory in Shawan is not carcinogenic to the human body, and the other areas are within acceptable range.
【作者單位】： 石河子大學(xué)化學(xué)化工學(xué)院新疆兵團(tuán)化工綠色過程重點(diǎn)實(shí)驗(yàn)室/省部共建國家重點(diǎn)實(shí)驗(yàn)室培育基地/材料化工新疆維吾爾自治區(qū)重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金(21467026,21267020) 石河子大學(xué)校級(jí)課題(400381010)資助~~
【分類號(hào)】：X50;X820.4

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