Assessment of potential health risk for inhabitants living near a former lead smelter. Part 2: site-specific human health risk assessment of Cd and Pb contamination in kitchen gardens
- 13 July 2012
- journal article
- Published by Springer Science and Business Media LLC in Environmental Monitoring and Assessment
- Vol. 185 (4), 2999-3012
- https://doi.org/10.1007/s10661-012-2767-x
Abstract
Metal contamination of urban soils and homegrown products has caused major concern. In Part 1, we investigated the long-term effects of a former smelter on the degree of kitchen garden-soil contamination and the quality of the homegrown vegetables from these gardens. The results showed that the soils retained a high level of contamination and that a large proportion of the vegetables produced did not comply with the legislation on the levels of metals allowed for human consumption. The present study aims to assess the associated potential health risk to local inhabitants through consumption of homegrown vegetables and ingestion of soil particles using a land use-based approach. For lead (Pb), the standard hazard quotient (HQ)-based risk assessment method was used to determine the HQ. For cadmium (Cd), the approach consisted of calculating the HQs and then deriving site-specific assessment criteria (SSAC) using the SNIFFER method. The results suggested that the exposure pathways considered should not engender any form of deleterious health effects for adults. For children, Pb was the main concern and induced a relatively high health risk through soil particle ingestion, and most total soil Cd concentrations exceeded the derived SSAC, in particular, through consumption of vegetables. The metal bioaccessibility in soils was incorporated into the methods to establish more realistic risk assessment measures. This study proposes an approach to integrate different human health risk assessment methods. Further investigations should complete the assessment to improve risk determination, e.g., the determination of metal bioaccessibility in vegetables.Keywords
This publication has 34 references indexed in Scilit:
- An inter-laboratory trial of the unified BARGE bioaccessibility method for arsenic, cadmium and lead in soilScience of The Total Environment, 2011
- Assessing Cd, Pb, Zn human bioaccessibility in smelter-contaminated agricultural topsoils (northern France)Environmental Geochemistry and Health, 2010
- Generic Assessment Criteria for human health risk assessment of potentially contaminated land in ChinaScience of The Total Environment, 2009
- Neuropsychological function in children with blood lead levels <10μg/dLNeuroToxicology, 2007
- Generic and site‐specific criteria in assessment of human health risk from contaminated soilSoil Use and Management, 2005
- Urban environmental geochemistry of trace metalsEnvironmental Pollution, 2005
- Low-Level Environmental Lead Exposure and Children’s Intellectual Function: An International Pooled AnalysisEnvironmental Health Perspectives, 2005
- Risk Perception of Heavy Metal Soil Contamination by High‐Exposed and Low‐Exposed Inhabitants: The Role of Knowledge and Emotional ConcernsRisk Analysis, 2005
- Contamination of soils in domestic gardens and allotments: a brief overviewLand Contamination & Reclamation, 2004
- Heavy Metal Contents in Vegetables and Market Garden Soils in Hong KongEnvironmental Technology, 1996