Abstract
The study area Thane Creek, lies on the southern part of the Deccan belt of India between latitude 18°53′–19°04′ N and longitude 72°48′–72°53′ E and includes the Ulhas river estuaries. Lead-210 (half-life of 22.3 years) is used for an estimation of recent sedimentation rate in Thane Creek using radiochemical separation and alpha counting of its grand-daughter 210Po. The concentration of Hg and Ni in vertical depth profiles of sediment is estimated to assess the anthropogenic input of these nuclides due to large-scale industrialization which has taken place at this site during last two decades. Depth-wise concentration profiles of Hg and Ni indicate positive evidence of continued fresh inputs into the Airoli section of Thane Creek.
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