Risk Assessments of Heavy Metals to Children Following Non-dietary Exposures and Sugarcane Consumption in a Rural Area in Southern China

Based on the context of a rural area contaminated by mining waste in Guangxi, China, the health risks of seven heavy metals (HM) to local children were evaluated. Risk assessments of soil HMs to individuals exposed through non-dietary routes and consuming locally grown sugarcane (juice) were conduct...

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Bibliographic Details
Published in:Exposure and health 2020-03, Vol.12 (1), p.1-8
Main Authors: Wang, Xiao-fei, Deng, Chao-bing, Sunahara, Geoffrey, Yin, Juan, Xu, Gui-ping, Zhu, Kai-xian
Format: Article
Language:English
Subjects:
Aquatic Pollution
Cadmium
Carcinogens
Chromium
Dietary intake
Dust
Earth and Environmental Science
Environment
Environmental Health
Exposure
Health risk assessment
Health risks
Heavy metals
Inhalation
Juices
Mine wastes
Mining
Original Paper
Pollution
Regression models
Respiration
Risk assessment
Rural areas
Soil contaminants
Soil contamination
Soils
Sugarcane
Waste Water Technology
Water and Health
Water Management
Water Pollution Control
Water Quality/Water Pollution
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Summary:Based on the context of a rural area contaminated by mining waste in Guangxi, China, the health risks of seven heavy metals (HM) to local children were evaluated. Risk assessments of soil HMs to individuals exposed through non-dietary routes and consuming locally grown sugarcane (juice) were conducted. Results indicated that the ranking for risks of HM exposures was juice drinking > non-dietary oral intake > dermal contact > inhalation. For non-carcinogenic risks, Cr and Cd in sugarcane juice posed the most significant risks, whereas As and Pb posed the highest risks through non-dietary exposure routes. A newly established assessment model using a regression equation of hazard index of HMs to ratios of soil HM concentrations/total reference doses, showed that the non-dietary HM risk was closely correlated to the environmental HM levels and human sensitivities, which can be measured by HM total daily reference doses.
ISSN:2451-9766
2451-9685
DOI:10.1007/s12403-018-0275-0