Dietary exposure and risk assessment of mercury via total diet study in Cambodia

► Mercury concentration in daily foodstuffs collected from Cambodia. ► The levels of Hg in fish were significant higher than that in other food groups. ► Rice and fish contributed significantly to the total daily intakes of THg and MeHg. ► The foodstuffs from Kratie and Kampong Cham have health risk...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2013-06, Vol.92 (1), p.143-149
Main Authors: Cheng, Zhang, Wang, Hong-Sheng, Du, Jun, Sthiannopkao, Suthipong, Xing, Guang-Hua, Kim, Kyoung-Woong, Yasin, Mohamed Salleh Mohamed, Hashim, Jamal Hisham, Wong, Ming-Hung
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Aged, 80 and over
Air. Soil. Water. Waste. Feeding
Animals
average daily intake
Biological and medical sciences
Cambodia
chemical risk assessment
Child
Cross-Sectional Studies
Daily intake
Diet
dietary exposure
Environment. Living conditions
Environmental Exposure - analysis
Environmental Protection Agency
Female
Fish
Fishes
Food Analysis
Food Contamination - analysis
food groups
Food industries
Fruit - chemistry
Fundamental and applied biological sciences. Psychology
General aspects
Health risks
Humans
Male
meat
Medical sciences
Mercury
Mercury - analysis
Methods of analysis, processing and quality control, regulation, standards
Methylmercury
methylmercury compounds
Methylmercury Compounds - analysis
Middle Aged
Public health. Hygiene
Public health. Hygiene-occupational medicine
rice
Risk Assessment
Surveys and Questionnaires
Total Diet Study
vegetables
Vegetables - chemistry
World Health Organization
Young Adult
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Summary:► Mercury concentration in daily foodstuffs collected from Cambodia. ► The levels of Hg in fish were significant higher than that in other food groups. ► Rice and fish contributed significantly to the total daily intakes of THg and MeHg. ► The foodstuffs from Kratie and Kampong Cham have health risk to the local population. To assess the daily intakes of total mercury (THg) and methylmercury (MeHg) and the possible adverse health impacts, different food groups including fish, meat, vegetable and rice were collected from three areas in Cambodia. The concentrations of THg and MeHg ranged from 0.16 to 171ngg−1 and not detected (ND) to 82.3ngg−1 wet weight (ww), respectively. The concentrations of THg and MeHg in fish were approximately three to four orders of magnitude greater than that in fruit and vegetable. Fish had the highest contribution to the total daily intakes of THg and MeHg. The estimated daily intake (EDI) of THg for the general population in Kampong Cham, Kratie and Kandal was 0.24, 1.38 and 0.22μgkg−1bwd−1, and 0.11, 0.45 and 0.06μgkg−1bwd−1 for MeHg, respectively. The dietary daily intakes of MeHg in Kratie and Kampong Cham were greater than the reference dose (RfD) imposed by The United States Environmental Protection Agency (USEPA) and in Kratie was also exceed the provisional tolerable weekly intake (PTWI) imposed by World Health Organization (WHO). To our knowledge, this the first study to evaluate the daily intakes of THg and MeHg in Cambodia.
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2013.02.025