Assessment of heavy metal contamination in soils at Jajmau (Kanpur) and Unnao industrial areas of the Ganga Plain, Uttar Pradesh, India
Assessment of heavy metal contamination in soils at Jajmau (Kanpur) and Unnao industrial areas of the Ganga Plain, Uttar Pradesh, India
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DOI：
10.1016/j.jhazmat.2009.09.024
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发表时间：
2010-02-15
影响因子：
13.6
通讯作者：
Govil, P. K.
中科院分区：
文献类型：
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作者：
Gowd, S. Srinivasa;Reddy, M. Ramakrishna;Govil, P. K.
在北方邦的贾毛（坎普尔）和乌纳奥工业区（东经80度15 '-80度34'，北纬26度24 '-26度35'）及其周围地区进行了环境地球化学研究，以查明工业废物对土壤的化学污染程度。Jajmau和Unnao是恒河沿着制革业（约450个）皮革加工集群的主要中心，此外还有其他行业。地质上，研究区被第四纪冲积层所包围，包括中更新世至上更新世的老冲积层和全新世的新冲积层。研究区气候属半干旱型。采用Philips MagiX PRO-PW 2440型X射线荧光光谱仪对采自Jajmau和Unnao工业区的53个土壤样品进行了重金属含量分析。数据揭示，该地区土壤受铬等重金属污染明显，变化范围为161.8 ~ 6227.8mg/kg（平均值为2652.3 mg/kg），钡的变化范围为44.1 ~ 780.9 mg/kg（平均295.7 mg/kg），Cu变化在1.7 - 126.1 mg/kg之间（平均42.9 mg/kg），铅含量为10.1 ~ 67.8 mg/kg锶含量在46.6 ~ 150.6 mg/kg之间（平均105.3 mg/kg），V在1.3至208.6 mg/kg之间变化（平均54.4 mg/kg），Zn在43.5至687.6 mg/kg之间变化（平均159.9 mg/kg）。采用地积累指数、富集因子、污染因子和污染程度等指标对土壤污染进行了评价。在研究区域不加区别地倾倒危险废物可能是土壤污染的主要原因，并通过雨水和风传播。探讨了沿着土壤中重金属的分布特征、相关性及可能的治理措施。(C)2009爱思唯尔有限公司版权所有。
Environmental geochemical studies were carried out in and around Jajmau (Kanpur) and Unnao industrial areas (80 degrees 15'-80 degrees 34'E longitude and 26 degrees 24'-26 degrees 35'N latitude), of Uttar Pradesh to find out the extent of chemical pollution in soil due to industrial waste. Jajmau and Unnao are prominent centers for leather processing clusters of tannery industries (about 450) along the banks of river Ganga, besides other industries. Geologically the study area is beset with alluvium of Quaternary age consisting of older alluvium of middle to upper Pleistocene and newer alluvium of Holocene. The climate of the study area is semi-arid type. Fifty-three soil samples were collected from Jajmau and Unnao industrial areas from top 15 cm layer of the soil and were analyzed for heavy metals by using Philips MagiX PRO-PW 2440 X-ray fluorescence spectrometer. The data reveals that the soil in the area is significantly contaminated with heavy metals such as chromium varies from 161.8 to 6227.8 mg/kg (average of 2652.3 mg/kg), Ba varies from 44.1 to 780.9 mg/kg (average of 295.7 mg/kg), Cu varies from 1.7 to 126.1 mg/kg (average of 42.9 mg/kg), Pb varies from 10.1 to 67.8 mg/kg (average of 38.3 mg/kg), Sr varies from 46.6 to 150.6 mg/kg (average of 105.3 mg/kg), V varies from 1.3 to 208.6 mg/kg (average of 54.4 mg/kg) and Zn varies from 43.5 to 687.6 mg/kg (average of 159.9 mg/kg). Soil contamination was assessed on the basis of geoaccumulation index, enrichment factor (EF), contamination factor and degree of contamination. Indiscriminate dumping of hazardous waste in the study area could be the main cause of the soil contamination, spreading by rainwater and wind. Distribution and correlation of heavy metals in soil along with possible remedial measures are discussed. (C) 2009 Elsevier B.V. All rights reserved.