摘要:

收集了(le)國內(nei)43個(ge)(ge)大中城(cheng)(cheng)市(shi)(shi)(shi)的(de)(de)3688個(ge)(ge)城(cheng)(cheng)區土(tu)(tu)壤重(zhong)(zhong)金(jin)屬(shu)(shu)數據,通過描述性分析(xi)(xi)、評價分析(xi)(xi)、聚(ju)類分析(xi)(xi)等,初步確定了(le)我國城(cheng)(cheng)市(shi)(shi)(shi)土(tu)(tu)壤重(zhong)(zhong)金(jin)屬(shu)(shu)的(de)(de)污(wu)染(ran)格局.結(jie)果表(biao)明(ming)(ming),我國城(cheng)(cheng)市(shi)(shi)(shi)土(tu)(tu)壤As、Cd、Cr、Cu、Hg、Ni、Pb、Zn的(de)(de)平均賦(fu)存量分別為13.39、0.68、63.04、38.17、0.31、26.18、47.34、137.72mg·kg-1.Nemerrow指數、地質累積指數和潛(qian)在生態危(wei)害指數評價表(biao)明(ming)(ming),污(wu)染(ran)最嚴重(zhong)(zhong)的(de)(de)城(cheng)(cheng)市(shi)(shi)(shi)是(shi)太原(yuan)、南京、開(kai)封(feng),主要污(wu)染(ran)重(zhong)(zhong)金(jin)屬(shu)(shu)是(shi)Hg、Cd、Pb.43個(ge)(ge)城(cheng)(cheng)市(shi)(shi)(shi)中,上海(hai)、武漢、淄博、昆明(ming)(ming)、撫(fu)順、昌吉(ji)、鄭州(zhou)(zhou)(zhou)、貴陽(yang)、成都、攀枝花、天津、珠海(hai)、大慶、北京、南寧(ning)、廣(guang)州(zhou)(zhou)(zhou)、香港、長(chang)春(chun)、太原(yuan)等19個(ge)(ge)城(cheng)(cheng)市(shi)(shi)(shi)屬(shu)(shu)于Cd強度污(wu)染(ran);徐州(zhou)(zhou)(zhou)、長(chang)沙、開(kai)封(feng)、重(zhong)(zhong)慶、烏魯(lu)木(mu)齊(qi)、沈陽(yang)、西安、杭(hang)州(zhou)(zhou)(zhou)、南京、蘭州(zhou)(zhou)(zhou)、洛(luo)陽(yang)等11個(ge)(ge)城(cheng)(cheng)市(shi)(shi)(shi)屬(shu)(shu)于Hg-Cd強度污(wu)染(ran)、Pb中度污(wu)染(ran);其余13個(ge)(ge)城(cheng)(cheng)市(shi)(shi)(shi)屬(shu)(shu)一(yi)般輕度污(wu)染(ran).長(chang)江以南城(cheng)(cheng)市(shi)(shi)(shi)土(tu)(tu)壤重(zhong)(zhong)金(jin)屬(shu)(shu)污(wu)染(ran)比長(chang)江以北城(cheng)(cheng)市(shi)(shi)(shi)嚴重(zhong)(zhong),中小城(cheng)(cheng)市(shi)(shi)(shi)土(tu)(tu)壤重(zhong)(zhong)金(jin)屬(shu)(shu)污(wu)染(ran)低于特大城(cheng)(cheng)市(shi)(shi)(shi).

  使用微信“掃一掃”功能添加“谷騰環保網”

相關文章