A geochemical study of the trace metals and lead isotopic ratios of soil and sediments in Korba, Chhattisgarh, India is presented here for the first time. Korba, the nation's ‘power hub’ is also the fifth among its eighty-eight most critically polluted industrial hotspots. A very high mean concentration (in mg kg-1) of V (308), Cr (567), Mn (3442), Co (92), Cu (218), Zn (426), Pb (311), Th (123) and U (32) characterized the sediments of the studied area with mean I_geo values of the trace metals ranging from −2.29 to 3.27. In the two-ratio scatter Pb isotope plot of the different environmental matrices, except for human blood, coal, soil, sediments, non-washed leaves, flyash and diesel overlapped linearly in the mixing line between diesel as the highest anthropogenic end member and a core sediment fraction representing its geogenic counterpart. The mean ²⁰⁷Pb/²⁰⁶Pb Pb ratio decreased in the order of diesel (0.9012) > flyash (0.8757) > coal (0.8498) soils and sediments (0.8374) > lowest core sediment fraction (0.8017). Principal Component Analysis (PCA) of the trace metal data extracted V, Cr, Cu, Zn, Pb, U and Th in the first component PC1. The northeastern part of the study area revealed major hotspots of V, Cu, Co, Zn and Pb near the flyash dykes of the power stations. Human blood used as a biomarker for Pb pollution in this study had a mean blood lead level of 28 μg/dl with a distinctive high ²⁰⁷Pb/²⁰⁶Pb ratio of 0.8828.

本文首次在印度Chhattisgarh的Korba进行了对土壤和沉积物中微量金属和铅同位素比的地球化学研究。该国的“电力中心”科巴（Korba）也是其88个污染最严重的工业热点地区中的第五个。V（308），Cr（567），Mn（3442），Co（92），Cu（218），Zn（426），Pb（311），Th（ 123）和U（32）用均值I _geo刻画了研究区域的沉积物痕量金属的值范围为-2.29至3.27。在不同环境基质的两比例散布Pb同位素图中，人类血液，煤炭，土壤，沉积物，未洗净的叶子，粉煤灰和柴油除外，在最高人类活动端柴油和柴油之间的混合线中呈线性重叠。代表其成因对应物的核心沉积物分数。平均值²⁰⁷ Pb / ²⁰⁶Pb Pb比值按柴油（0.9012）>粉煤灰（0.8757）>煤（0.8498）的土壤和沉积物（0.8374）>最低核心沉积物分数（0.8017）的顺序降低。痕量金属数据的主成分分析（PCA）提取了第一成分PC1中的V，Cr，Cu，Zn，Pb，U和Th。研究区的东北部在发电厂的粉煤灰堤附近发现了V，Cu，Co，Zn和Pb的主要热点。在这项研究中，用作血铅污染生物标志物的人血的平均血铅水平为28μg / dl，其中²⁰⁷ Pb / ²⁰⁶ Pb的比率特别高，为0.8828。