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    Risk assessment of polycyclic aromatic hydrocarbon infested sediments along the coast of Goa, India

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    11114.pdf (640.5Kb)
    Date
    2023
    Author
    Bhatawadekar, V.C.
    Damare, S.R.
    Garg, A.
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    Abstract
    Goa, a small state in India, is a tourist hotspot known for its coastline and beaches. Anthropogenic activities lead to pollution in the environment. Amongst many other pollutants, polycyclic aromatic hydrocarbons represent a major class of contaminants owing to their widespread distribution and protracted environmental persistence. No information is available about the levels of Polycyclic aromatic hydrocarbon (PAH) contamination in the sediments along the coastline of Goa. The study aimed to establish a baseline for PAH concentrations in the sediments along the shoreline to help comment on the pollution levels caused and thereby understand the risk and their impact on the marine life therein. The total concentration of PAHs along the selected sampling sites of the Goa coastline was 1.00 to 875 μg g−1. Maximum PAH concentrations were detected in the Divar island mangrove (875 μg g−1); the least was observed at Galgibaga beach (365 μg g−1). The results revealed that the sediment of the Goa coastline is heavily contaminated with PAH. Source apportionment of PAHs was analysed based on diagnostic ratios, and results exhibited that petroleum products and their combustion were primarily responsible for their generation. The results of risk quotients showed that the values are way above effect range median (ER-M), indicating these could pose a high risk to the ecosystem
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    https://doi.org/10.1007/S11356-023-28838-6
    http://drs.nio.res.in/drs/handle/2264/9112
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