A review of heavy metal pollution levels and health risk assessment of urban soils in Chinese cities

This study assessed literature-based data for the period 2006–2016 regarding heavy metal (As, Cd, Cr, Cu, Pb, Ni, Zn, and Hg) concentrations in soils from 32 Chinese cities and the associated human health risks. The mean concentrations of the eight metals were lower than the soil environmental quali...

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Bibliographic Details
Published in:Environmental science and pollution research international 2018, Vol.25 (2), p.1055-1069
Main Authors: Pan, Libo, Wang, Yue, Ma, Jin, Hu, Yu, Su, Benying, Fang, Guangling, Wang, Lei, Xiang, Bao
Format: Article
Language:English
Subjects:
Adults
Anthropogenic factors
Aquatic Pollution
Arsenic
Arsenic - analysis
Atmospheric Protection/Air Quality Control/Air Pollution
Cadmium
Cancer
Carcinogens
Children
China
Chromium
Cities
Contamination
Copper
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental Monitoring
Environmental quality
Environmental science
Health risk assessment
Health risks
Heavy metals
Human influences
Humans
Lead
Mercury
Metal concentrations
Metals
Metals, Heavy - analysis
Nickel
Pollutants
Pollution
Pollution levels
Quality standards
Review Article
Risk Assessment
Soil contamination
Soil Pollutants - analysis
Soil pollution
Soil quality
Urban areas
Waste Water Technology
Water Management
Water Pollution Control
Zinc
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Summary:This study assessed literature-based data for the period 2006–2016 regarding heavy metal (As, Cd, Cr, Cu, Pb, Ni, Zn, and Hg) concentrations in soils from 32 Chinese cities and the associated human health risks. The mean concentrations of the eight metals were lower than the soil environmental quality standards in China, but were much higher than the background values for most cities. The enrichment factor (EF) and geoaccumulation index ( I geo ) values showed moderate pollution levels, possibly influenced by anthropogenic activity for Cd, Hg, Pb, and Zn. The pollution levels in eastern cities were much higher than those in western cities, and heavy metals concentrations in different types of cities followed the order: industrial based cities > more developed cities > metropoles > underdeveloped cities. The human health risk assessment for heavy metals in most cities indicated that non-carcinogenic risks were within threshold values (HI
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-017-0513-1