第31卷第1期 2017年2月
现代地质 GEOSCIENCE
Vol. 31No.1 Feb. 2017
唐山城市近地表灰尘重金属含量及环境质量评价
崔邢涛，刘伟
（河北地质大学资源与环境工程研究所，河北石家庄050031）
摘要：以唐山市主城区161个城市近地表灰尘样品为研究对象，研究其重金属含量及环境质量状况。采用单因子指数法和尼梅罗综合指数法对唐山城市近地表灰尘中重金属进行环境质量评价，并应用ARCCIS的空间分析模块进行空间插值制图。结果表明，研究区城市近地表灰尘中重金属含量均超过当地背景值。近地表灰尘中重金属元素Zn、Cd、Pb、 Cu、Hg、Cr、Ni和As的变异系数分别是43.23%、213.99%、113.21%、29.56%、70.83%、51.80%、29.21%、 32.67%，其中含量变异系数较大的重金属是Cd、Pb等。重金属元索单因子指数评价表明，Cd、Zn为严重污染，Cr、 Hg、Pb、Cu、Ni为潜在污染，As为清洁，污染程度依次为Cd>Zn>Cu
价表明，唐山城市近地表灰尘重金属综合污染严重，
r>Pb>Hg>Ni>As。尼梅罗综合指数法评
，清洁、潜在污染、
、轻污染、重污染、严重污染比例分别为0、
3.72%、52.19%、38.51%、5.58%，重污染以上污染比例达到44.09%，其严重污染区与工业区域、交通分布发达程
度的分布相吻合，重金属污染可能与城市的燃煤、交通等污染源有关。关键调：近地表灰尘；重金属；环境质量；评价；唐山
中图分类号：X823
文献标志码：A
文章编号：10008527(2017)01-018407
HeavyMetal ConcentrationandAssessmentof Environmental Quality
inAtmosphericDustnearGroundofTangshanCity
CUI Xingtao, LIU Wei
(lustinste of Reouree and Enzironmental Engineering, Hebei GEO Unieersily, Shjiahuang, Hebei050031, China)
Abstract: The 161 atmospheric dust samples gathered near the ground of Tangshan City were studied for the concentration and environmental quality of heavy metals. The atmospheric dust near the ground of Tangshan City was assessed for the environmental quality of heavy metals with single-factor contaminant index and Nemerow oosskeeeesdeonnaedaseeaaoe ARCGIS. The results had shown that the actual content of all the heavy metals in the atmospheric dust near the ground of Tangshan City was over their original background level, The variance indices of Zn, Cd, Pb, Cu, Hg, Cr, Ni and As in the atmospheric dust near the ground of Tangshan City were 43. 23%, 213. 99%, 113.21%, 29.56%, 70. 83%, 51.80%, 29.21%, 32.67%, respectively. Cd and Pb were the strong va-riance elements. The results of the environmental quality of heavy metals with single-factor contaminant index had shown that Cd and Zn were the serious pollution level and Cr, Hg, Pb, Cu, Ni were the potential pollu-tion level, As was the clean level. The results showed that the elements, according to the environmental quality of heavy metals with single-factor contaminant index, were followed by Cd > Zn > Cu > Cr > Pb > Hg > Ni > As. The results of the environmental quality of heavy metals with Nemerow multi-factor index had shown the heavy metal pollution in the atmospheric dust near the ground of Tangshan city was serious, Considering synthetically the pollution level of heavy metals, the percentage of clean, potential pollution, light pollution, heavy pollution and severe pollution were 0,3.72%,52.19%, 38.51%, 5.58%, respectively.The sum of proportion of
收稿日期：2015-1020；改回日期：2016-09-10；责任编辑：或开静。
基金项目：中国地质调查局地质大调查项日(1212010511212)；河北省科学技术厅项目（16456110D)。作者简介：崔邢涛，男，副研究员，1978年出生，地球化学专业，主要从事环境地球化学方面的研究。
Email; ext78520@126, com。