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首页> 外文期刊>Journal of environmental monitoring: JEM >Risk assessment of heavy metals in road and soil dusts within PM _(2.5), PM _(10) and PM _(100) fractions in Dongying city, Shandong Province, China
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Risk assessment of heavy metals in road and soil dusts within PM _(2.5), PM _(10) and PM _(100) fractions in Dongying city, Shandong Province, China

机译：山东省东营市PM _（2.5），PM _（10）和PM _（100）组分中道路和土壤粉尘中重金属的风险评估

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15 road and 14 soil dust samples were collected from an oilfield city, Dongying, from 11/2009-4/2010 and analyzed by inductively coupled plasma-mass spectroscopy (ICP-MS) for V, Cr, Mn, Co, Ni, Cu, Zn, As, Cd and Pb within PM _(2.5), PM _(10) and PM _(100) fractions synchronously. Metal concentrations, sources and human health risk were studied. Results showed that both soil and road dust exhibited higher values for Mn and Zn and lower values for Co and Cd for the three fractions. Mass concentration ratios of PM _(2.5)/PM _(10) and PM _(10)/PM _(100) for metals in road and soil dust indicate that most of the heavy metals tend to concentrate in fine particles. Geoaccumulation index and enrichment factors analysis showed that Cu, Zn and Cd exhibited moderate or heavy contamination and significant enrichment, indicating the influence of anthropogenic sources. Vanadium, Cr, Mn and Co were mostly not enriched and were mainly influenced by crustal sources. For Ni, As and Pb, they ranged from not enriched to moderately enriched and were influenced by both crustal materials and anthropogenic sources. The conclusions were confirmed by multivariate analysis methods. Principle component analysis revealed that the major sources were vehicle emission, industrial activities, coal combustion, agricultural activities and crustal materials. The risk assessment results indicated that metal ingestion appeared to be the main exposure route followed by dermal contact. The most likely cause for cancer and other health risks are both the fine particles of soil and road dusts.
机译：从11 / 2009-4 / 2010采集了一个油田城市东营的15个道路和14个土壤粉尘样品，并通过电感耦合等离子体质谱法（ICP-MS）对V，Cr，Mn，Co，Ni，Cu进行了分析，PM _（2.5），PM _（10）和PM _（100）内的Zn，As，Cd和Pb同步进行分离。研究了金属浓度，来源和人类健康风险。结果表明，在这三个部分中，土壤和道路扬尘的Mn和Zn值较高，而Co和Cd值较低。道路和土壤粉尘中金属的PM _（2.5）/ PM _（10）和PM _（10）/ PM _（100）的质量浓度比表明，大多数重金属趋于集中在细颗粒中。地积累指数和富集因子分析表明，Cu，Zn和Cd表现出中度或重度污染，富集度显着，表明了人为源的影响。钒，铬，锰和钴大多没有富集，主要受地壳来源的影响。对于镍，砷和铅，它们的范围从未富集到中等富集，并受到地壳物质和人为来源的影响。结论已通过多元分析方法得到证实。主成分分析表明，主要来源是车辆排放，工业活动，燃煤，农业活动和地壳材料。风险评估结果表明，金属摄入似乎是皮肤接触的主要暴露途径。引起癌症和其他健康风险的最可能原因是细颗粒的土壤和道路扬尘。

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