鞍山某铁矿区土壤重金属污染评价
|
摘要
为研究铁矿周边土壤的重金属污染状况,测定了鞍山某典型铁矿区土壤Cd、Pb、Cu、Zn和Ni的含量,运用单项污染指数、内梅罗综合污染指数及潜在生态风险指数对其污染程度进行评价,并通过相关性分析探索污染来源。结果表明:与环境质量二级标准相比,土壤中Cd和Ni均有超标,Pb、Cu和Zn未超限,但在土壤中也有累积;研究区域土壤基本处于轻度污染水平,单项污染指数依次为Cd>Ni>Zn>Cu>Pb,Cd处于轻度污染,Ni为尚清洁,其他元素无污染;Cd的地累积指数为2.85,为中度污染;研究区具有极强潜在生态风险,生态危害指数为381.74,Cd是主要贡献因子。相关性分析结果表明,5种重金属元素的来源均与矿业活动有关,其中Cd受影响明显。
In order to study the soil heavy metal pollution near the iron mine region,the soil samples from a typical iron mine region in Anshan had been collected to determine total content of Cd、Pb、Cu、Zn and Ni. The single pollution index,Nemerow pollution index and potential ecological risk index were adopted to evaluate the pollution degree of iron mine region,and the correlation between elements was analyzed by Pearson correlation coefficient to explore the source of pollution.The result showed that value of Cd and Ni surpassed the Chinese soil quality standard class II( GB15618—1995) slightly,while Pb,Zn and Cu not surpass the standard. Pb,Zn and Cu accumulation took place in mining region. According to the standard,the soil heavy metal content of research region was in light pollution status and the single factor pollution index for each heavy metal followed the order of Cd > Ni > Zn > Cu > Pb,which demonstrated alert degree of Cd,Ni and non-polluting of others. Additionally,an Igeo value of 2. 85 for Cd reflected a moderated pollution. The potential ecological risk index showed the studied area showed higher ecological risk of heavy metals,RI value was 381. 74 and the major contribution factor was Cd. Correlation analysis showed that the five heavy metals were all related to the mining activities. Cd was obviously affected by iron mining.
In order to study the soil heavy metal pollution near the iron mine region,the soil samples from a typical iron mine region in Anshan had been collected to determine total content of Cd、Pb、Cu、Zn and Ni. The single pollution index,Nemerow pollution index and potential ecological risk index were adopted to evaluate the pollution degree of iron mine region,and the correlation between elements was analyzed by Pearson correlation coefficient to explore the source of pollution.The result showed that value of Cd and Ni surpassed the Chinese soil quality standard class II( GB15618—1995) slightly,while Pb,Zn and Cu not surpass the standard. Pb,Zn and Cu accumulation took place in mining region. According to the standard,the soil heavy metal content of research region was in light pollution status and the single factor pollution index for each heavy metal followed the order of Cd > Ni > Zn > Cu > Pb,which demonstrated alert degree of Cd,Ni and non-polluting of others. Additionally,an Igeo value of 2. 85 for Cd reflected a moderated pollution. The potential ecological risk index showed the studied area showed higher ecological risk of heavy metals,RI value was 381. 74 and the major contribution factor was Cd. Correlation analysis showed that the five heavy metals were all related to the mining activities. Cd was obviously affected by iron mining.
引文
[1]庞文品,秦樊鑫,吕亚超,等.贵州兴仁煤矿区农田土壤重金属化学形态及风险评估[J].应用生态学报,2016,27(5):1468-1478.
[2]余璇,宋柳霆,滕彦国.湖南省某铅锌矿土壤重金属污染分析与风险评价[J].华中农业大学学报,2016,35(5):27-32.
[3]秦飞,李倩,季宏兵,等.密云水库上游铁矿区土壤中重金属污染评价[J].环境科学与技术,2013,36(12M):353-361.
[4]陕永杰,张磊.塔儿山铁矿区土壤重金属污染评价及来源分析[J].环境工程,2016,34(11):141-144.
[5]张奥博,褚先尧,殷汉琴,等.龙游硫铁矿区农田土壤重金属污染的空间变异及在水稻中的积累[J].土壤,2017,49(4):760-769.
[6]毛香菊,邹安华,马亚梦,等.南京某铁矿区土壤重金属污染潜在生态危害评价[J].矿产保护与利用,2015(3):54-59.
[7]马亚梦,谭秀民,毛香菊,等.典型铁尾矿库重金属污染评价及生态修复建议[J].矿产保护与利用,2016(3):49-56.
[8]李金.鞍山市矿区分布及污染情况调查研究[J].山东工业技术,2016,12:274.
[9]邢小茹,薛生国,张乃英,等.鞍山市大气尘和金属元素沉降通量及污染特征[J].中国环境监测,2010,26(2):11-15.
[10]贾亚琪,程志飞,刘品祯,等.煤矿区周边农田土壤重金属积累特征与生态风险评价[J].土壤通报,2016,47(2):474-479.
[11]李三中,徐华勤,陈建安,等.某矿区砷碱渣堆场周边土壤重金属污染评价及潜在生态风险分析[J].农业环境科学学报,2017,36(6):1141-1148.
[12]张永康,曹耀华,冯乃琦,等.青海某铁多金属矿区土壤重金属污染评价[J].矿产保护与利用,2017(3):94-99.
[13]姜素,陆华,曹瑞祥,等.某铁矿尾矿库及周边土壤重金属污染评价[J].环境科学与技术,2014,37(S1):274-278.
[14]李峰,王素芳,张丽娟.豫中平原煤矿区土壤重金属污染及其潜在生态风险评价[J].河南科学,2016,34(11):1910-1916.
[15]Hkanson L.An ecological risk index for aquatic pollution control:a sedimentological approach[J].Water Research,1980,14(8):975-1001.
[16]兰金秀,张风宝,杨明义.渭河中下游河道沉积物重金属污染生态风险评价[J].水土保持研究,2017,24(4):77-82.
[17]李玲,高畅,董洋洋,等.典型煤矿工业园区土壤重金属污染评价[J].土壤通报,2013,44(1):227-231.
[2]余璇,宋柳霆,滕彦国.湖南省某铅锌矿土壤重金属污染分析与风险评价[J].华中农业大学学报,2016,35(5):27-32.
[3]秦飞,李倩,季宏兵,等.密云水库上游铁矿区土壤中重金属污染评价[J].环境科学与技术,2013,36(12M):353-361.
[4]陕永杰,张磊.塔儿山铁矿区土壤重金属污染评价及来源分析[J].环境工程,2016,34(11):141-144.
[5]张奥博,褚先尧,殷汉琴,等.龙游硫铁矿区农田土壤重金属污染的空间变异及在水稻中的积累[J].土壤,2017,49(4):760-769.
[6]毛香菊,邹安华,马亚梦,等.南京某铁矿区土壤重金属污染潜在生态危害评价[J].矿产保护与利用,2015(3):54-59.
[7]马亚梦,谭秀民,毛香菊,等.典型铁尾矿库重金属污染评价及生态修复建议[J].矿产保护与利用,2016(3):49-56.
[8]李金.鞍山市矿区分布及污染情况调查研究[J].山东工业技术,2016,12:274.
[9]邢小茹,薛生国,张乃英,等.鞍山市大气尘和金属元素沉降通量及污染特征[J].中国环境监测,2010,26(2):11-15.
[10]贾亚琪,程志飞,刘品祯,等.煤矿区周边农田土壤重金属积累特征与生态风险评价[J].土壤通报,2016,47(2):474-479.
[11]李三中,徐华勤,陈建安,等.某矿区砷碱渣堆场周边土壤重金属污染评价及潜在生态风险分析[J].农业环境科学学报,2017,36(6):1141-1148.
[12]张永康,曹耀华,冯乃琦,等.青海某铁多金属矿区土壤重金属污染评价[J].矿产保护与利用,2017(3):94-99.
[13]姜素,陆华,曹瑞祥,等.某铁矿尾矿库及周边土壤重金属污染评价[J].环境科学与技术,2014,37(S1):274-278.
[14]李峰,王素芳,张丽娟.豫中平原煤矿区土壤重金属污染及其潜在生态风险评价[J].河南科学,2016,34(11):1910-1916.
[15]Hkanson L.An ecological risk index for aquatic pollution control:a sedimentological approach[J].Water Research,1980,14(8):975-1001.
[16]兰金秀,张风宝,杨明义.渭河中下游河道沉积物重金属污染生态风险评价[J].水土保持研究,2017,24(4):77-82.
[17]李玲,高畅,董洋洋,等.典型煤矿工业园区土壤重金属污染评价[J].土壤通报,2013,44(1):227-231.