Spatial distribution, contamination levels, and risk assessment of heavy metals along the Eastern India coastline.

The proposed comprehensive study was accomplished to analyze the ecological phenomenon, heavy metals occurrence, and its significance. The spatial distribution of heavy metals in the sediments such as Cadmium (Cd), Cobalt (Co), Cupper (Cu), Lead (Pb), Mercury (Hg), Nickel (Ni), Zinc (Zn), Iron (Fe), and Chromium (Cr) of the Eastern coastline of India (ECI) was evaluated across 61 sites along the 1400 km stretch of the Bay of Bengal and the Arabian Sea coastline. The heavy metal concentration was higher for Hg (0.

Investigation and comparative analysis of ecological risk for heavy metals in sediment and surface water in east coast estuaries of India.

The sediments and surface water from 8 stations each from Dhamara and Paradeep estuarine areas were sampled for investigation of heavy metals, Cd, Cu, Pb, Mn, Ni, Zn, Fe, and Cr contamination. The objective of the sediment and surface water characterization is to find the existing spatial and temporal intercorrelation. The sediment accumulation index (I), enrichment index (I), ecological risk index (I) and probability heavy metals (p-HMI) reveal the contamination status with Mn, Ni, Zn, Cr, and Cu showing permissible (0 ≤ I ≤ 1, I ˂ 2, I ≤ 150) to moderate (1 ≤ I ≤ 2, 40 ≤ R ≤ 80) contamination.

Modified heavy metal Pollution index (m-HPI) for surface water Quality in river basins, India.

India is bestowed with huge amount of surface water resources. However, India lacks the quality monitoring of surface water and comprehensive management for sustainable surface water development. A new approach for indexing has been proposed to represent pollution due to heavy metals in surface water.