Mercury risk assessment combining internal and external exposure methods for a population living near a municipal solid waste incinerator

Copyright © 2016 Elsevier Ltd. All rights reserved..

Risk assessments for human health have been conducted for municipal solid waste incinerators (MSWIs) in many western countries, whereas only a few risk assessments have been performed for MSWIs in developing countries such as China where the use of waste incineration is increasing rapidly. To assess the mercury exposure risks of a population living near the largest MSWI in South China, we combined internal exposure and external exposure assessment with an individual-specific questionnaire. The mercury concentrations in air, soil, and locally collected food around the MSWI were assessed. The total mercury (T-Hg) and methylmercury (MeHg) of 447 blood samples from a control group, residential exposure group, and MSWI workers were measured. The internal and external exposures of the subject population were analyzed. Significant difference in MeHg concentrations was observed between the control group and the exposed group, between the control group and the MSWI workers, and between the exposed group and the MSWI workers (median levels: 0.70 μg/L, 0.81 μg/L, and 1.02 μg/L for the control group, exposed group, and MSWI workers, respectively). The MeHg/T-Hg ratio was 0.51 ± 0.19, 0.59 ± 0.17 and 0.58 ± 0.25, respectively. Multiple linear regression analysis indicated that MeHg concentrations were positively correlated with the gaseous mercury in the air. Combining internal and external exposure assessment showed that the direct contribution of MSWI emissions was minor compared with the dietary contribution. The external and internal exposures were well matched with each other. This study also suggested that an integrated method combining internal and external exposure assessment with an individual-specific questionnaire is feasible to assess the risks for a population living near a MSWI.

Medienart:

E-Artikel

Erscheinungsjahr:

2016

Erschienen:

2016

Enthalten in:

Zur Gesamtaufnahme - volume:219

Enthalten in:

Environmental pollution (Barking, Essex : 1987) - 219(2016) vom: 10. Dez., Seite 1060-1068

Sprache:

Englisch

Beteiligte Personen:

Deng, Chunyan [VerfasserIn]
Xie, Han [VerfasserIn]
Ye, Xuejie [VerfasserIn]
Zhang, Haoran [VerfasserIn]
Liu, Maodian [VerfasserIn]
Tong, Yindong [VerfasserIn]
Ou, Langbo [VerfasserIn]
Yuan, Wen [VerfasserIn]
Zhang, Wei [VerfasserIn]
Wang, Xuejun [VerfasserIn]

Links:

Volltext

Themen:

Air Pollutants
Environmental Pollutants
External exposure
FXS1BY2PGL
Gases
Internal exposure
Journal Article
Mercury
Methylmercury
Methylmercury Compounds
Municipal solid waste incinerator
Soil
Soil Pollutants
Solid Waste
Total mercury

Anmerkungen:

Date Completed 27.02.2017

Date Revised 02.12.2018

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.envpol.2016.09.006

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM264208404