Spatial characteristics of heavy metal contamination and potential human health risk assessment of urban soils: A case study from an urban region of South India

Ecotoxicology and Environmental Safety
Narsimha AdimallaHui Qian

Abstract

Due to the rapid development of urbanization, the contamination of heavy metals in urban soils has become one of the major concerns of environmental and risk to humans. The main objective was to determine the contamination of six heavy metals in 25 urban soils and also to evaluate the associated health risk via diverse indices for adults and children. The mean concentration of Pb (47.48 mg/kg), Cr (43.24 mg/kg), Cu (40.64 mg/kg), Zn (34.68 mg/kg), Co (16.54 mg/kg), and Ni (7.55 mg/kg) exceeded the geochemical background values. Pb and Zn were closely attributed to traffic sources. Geo-accumulation index (Igeo) showed that Pb and Co in the soils were at the moderately pollution level, while 4% of soil samples were moderately polluted to heavily pollution levels by Cu. Enrichment factor (EF) showed that soils presented minor to severe anthropogenic pollution levels in the investigated region. The heavy metals to the non-carcinogenic risk of humans in the investigated region are absolutely from Cr and Pb, while the carcinogenic risk is controlled by Cr, and the remaining metals pose no possible risk to the local people. Specially, children had larger health risks in terms of non-carcinogenic risks than adults which may be related ...Continue Reading

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Citations

Apr 24, 2021·Environmental Science and Pollution Research International·Safina NazSakeena Tul-Ain Haider
Apr 24, 2021·Environmental Science and Pollution Research International·Baisakhi ChakrabortyPravat Kumar Shit
May 6, 2021·International Journal of Environmental Research and Public Health·Weiwei ZhangYin Ren
May 21, 2021·Environmental Science and Pollution Research International·Ahmed Ali Romeh
Jun 4, 2021·Ecotoxicology and Environmental Safety·Yu-Pin LinChiao-Ming Lin
Jun 23, 2021·Journal of Environmental Management·Joanna Świdwa-Urbańska, Jorge Batlle-Sales
Jun 25, 2021·Environmental Monitoring and Assessment·Michael J O'SheaReto Gieré
Jul 24, 2021·Journal of Parasitic Diseases : Official Organ of the Indian Society for Parasitology·Mohamed I MashalySalah A Al-Gaafari
Aug 17, 2021·Ecotoxicology and Environmental Safety·Samantha Jiménez-OyolaPaola Romero
Sep 2, 2021·Environmental Science and Pollution Research International·Jingyun WangXiangwei Zhao
Sep 11, 2021·Environmental Toxicology and Pharmacology·Neha GuptaShiv Prasad

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