本文關(guān)鍵詞： 包頭 鋁廠 重金屬污染 地累積指數(shù) 健康風(fēng)險(xiǎn)評(píng)價(jià)　出處：《中國(guó)環(huán)境監(jiān)測(cè)》2017年01期 　論文類型：期刊論文

【摘要】：以包頭市某鋁業(yè)周邊500 m內(nèi)土壤為研究對(duì)象,測(cè)定其東北、東南、西北、西南4個(gè)方向不同水平距離及深度處土樣中Cu、Cd、Pb、Zn、Ni和Cr的含量,并采用地累積指數(shù)法和健康風(fēng)險(xiǎn)評(píng)價(jià)法對(duì)重金屬污染狀況進(jìn)行評(píng)價(jià)。結(jié)果表明,該區(qū)域表層土壤中6種重金屬普遍高于內(nèi)蒙古土壤背景值,且在西南方向50 m處含量最高,人類活動(dòng)對(duì)該區(qū)域重金屬干擾強(qiáng)烈,而風(fēng)向?qū)χ亟饘俜植加绊懖淮?鋁廠周圍土壤中Cd、Pb處于中污染-重污染,Cu和Ni處于無污染-中污染,Zn和Cr為無污染,各金屬污染程度隨土壤深度的增加而減輕;健康風(fēng)險(xiǎn)評(píng)價(jià)表明,研究區(qū)域內(nèi)Cu、Pb、Ni和Cd均不存在非致癌健康風(fēng)險(xiǎn),而Cd的致癌危害雖在可接受范圍內(nèi),但已存在潛在致癌風(fēng)險(xiǎn),Ni的致癌健康風(fēng)險(xiǎn)指數(shù)已超過預(yù)警值,應(yīng)予以高度重視和防治。
[Abstract]:The soil samples from Baotou City within 500 meters around the aluminum industry were measured in the northeast, southeast, northwest and southwest of the soil samples with different horizontal distances and depths. The contents of Ni and Cr were evaluated by the method of ground accumulation index and health risk assessment. The results showed that the six heavy metals in the topsoil were generally higher than the background values in Inner Mongolia. The concentration of heavy metals was the highest at 50 m southwest, and the heavy metals in the area were strongly disturbed by human activities, but the wind direction had little effect on the distribution of heavy metals. CD ~ (2 +) Pb in the soil around the aluminum factory is in the middle pollution-heavy pollution, Cu and Ni are non-polluted, Zn and Cr are no pollution, and the degree of each metal pollution is reduced with the increase of soil depth. The health risk assessment showed that there was no non-carcinogenic health risk for both Cu PbN Ni and CD in the study area, while the carcinogenic hazard of CD was within the acceptable range, but there was already a potential carcinogenic risk. The health risk index of Ni has exceeded the warning value, which should be paid more attention to and prevented.
【作者單位】： 內(nèi)蒙古科技大學(xué)能源與環(huán)境學(xué)院;
【基金】：內(nèi)蒙古自治區(qū)自然科學(xué)基金資助項(xiàng)目(2015MS0408)
【分類號(hào)】：X53;X825
【正文快照】： 根據(jù)2014年《全國(guó)土壤污染狀況調(diào)查公報(bào)》,我國(guó)土壤環(huán)境現(xiàn)狀總體不容樂觀,部分地區(qū)土壤污染較重,耕地土壤環(huán)境質(zhì)量堪憂,工礦業(yè)廢棄地土壤環(huán)境問題突出,污染類型以無機(jī)型為主,尤以重金屬污染為最[1]。土壤重金屬污染具有隱蔽性、滯后性、累積性和不可逆轉(zhuǎn)性,不僅會(huì)影響糧食作物

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 陸泗進(jìn);王業(yè)耀;何立環(huán);;湖南省某冶煉廠周邊農(nóng)田土壤重金屬污染及生態(tài)風(fēng)險(xiǎn)評(píng)價(jià)[J];中國(guó)環(huán)境監(jiān)測(cè);2015年03期

2 范拴喜;;寶雞市長(zhǎng)青鎮(zhèn)冶煉廠周圍土壤重金屬污染與健康風(fēng)險(xiǎn)評(píng)估[J];環(huán)境工程;2015年04期

3 古德寧;李光明;張兆海;楊玉t，

本文編號(hào)：1449006