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PV Krishna
V Jyothirmayi
KM Rao 

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PV Krishna
V Jyothirmayi
KM Rao

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International Research Journal of Public and Environmental Health
Vol.1 (5),pp. 121-125, July 2014
ISSN 2360-8803
Article 14/ID/ JPR056, 05 pages
Copyright © 2014 Author(s) retain the copyright of this article. Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 3.0 International License

Original Research Paper

Human  health  risk   assessment  of  heavy  metal accumulation  through  fish consumption, from Machilipatnam Coast, Andhra Pradesh, India

Accepted 4 July, 2014

Krishna, P.V.*, V. Jyothirmayi and K. Madhusudhana Rao

Department of Zoology and Aquaculture, Acharya Nagarjuna University, Nagarjuna Nagar – 522 510 Andhra Pradesh, India.

*Corresponding Author E mail: drpvkrishna(at)

Tel: (+91) 9985206281,
Fax: +91.0863-2293378; 2293320


The progress of aquaculture, agriculture and industrial development activities has led to the increased pollutants emission into the coastal ecosystem. Heavy metals are one of the most common pollutants in the coastal area. This observation deals with the human health risk assessment of metal accumulation through the consumption of marine fish Liza macrolepis. The concentration of zinc (Zn), lead (Pb), nickel (Ni), cupper (Cu), mercury (Hg) and cadmium (Cd) were investigated in muscle and liver of the fish in this coast. The study explains the heavy metal concentration in the fish and leads to health risk assessment in the human beings. The average measured concentrations (mg/kg) in the edible organs of fish were follows: Zn concentration was 34.6 and 38.2 that of Pb was 14.2 and 15.5, that of Ni was 10.4 and 11.8; that of Cu was 33.2 and 34.2; that of Hg 2.1 and 2.9 that of Cd were 0.8 and 0.9 in the muscle and liver respectively. The average “Target Hazard Quotient” (THQ) value of Zn goes to 17.9; Pb was 7.3; Ni was 5.3; Cu was 17.2; Hg was 1.08; and Cd was 0.4 recorded in the study area in food fish L. macolepis.

Key words: Heavy metals, health risk, Liza macrolepis, Target hazard quotient (THQ).

Key words:

Krishna et al