NDLI: Modeled methylmercury exposure and risk from rice consumption for vulnerable populations in a traditional fish-eating area in China.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Tong, Yin-Dong Ou, Lang-Bo Chen, Long Wang, Huan-Huan Chen, Cen Wang, Xue-Jun Zhang, Wei Wang, Qi-Guang
Spatial Coverage	China
Description	Country affiliation: China Author Affiliation: Tong YD ( Ministry of Education Laboratory of Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, China)
Abstract	The circulation of rice from contaminated areas could escalate exposure risk from a local problem to a national issue and affect a wider population beyond the region of origin, as confirmed by the 'Poison Rice Incident' in May 2013 in Guangzhou, China. In the present study, the authors established a food chain model based on the aquivalence method to identify major sources of methylmercury (MeHg), estimate the levels of MeHg, and quantify exposure to MeHg via rice and aquatic food consumption. Different types of organism samples from the Haihe River also were collected to verify the calculated values. The MeHg intake in pregnant women was 1529.1 ng/d from the aquatic food chain and as high as 2804.0 ng/d from rice, although the intake varied among scenarios. The maximum possible MeHg concentration in the blood of pregnant women was 5.21 µg/L, higher than the threshold value of MeHg recommended by the US Environmental Protection Agency (4.4 µg/L), which indicated that pregnant women could face risk from MeHg exposure. The authors also assessed the risk of MeHg exposure in pregnant women and their breastfed infants using a new index, HQEquivalent . In 4 scenarios, the HQEquivalent indices ranged from 0.42 to 1.18 for pregnant women and from 0.29 to 0.83 for breastfed infants.
File Format	HTM / HTML
ISSN	07307268
Issue Number	5
Volume Number	34
e-ISSN	15528618
Journal	Environmental Toxicology and Chemistry
Language	English
Publisher	Wiley
Publisher Date	2015-05-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Water Pollutants, Chemical Research Support, Non-u.s. Gov't Food Contamination Discipline Environmental Health Humans Seafood Discipline Toxicology Infant Vulnerable Populations Blood Journal Article Oryza Sativa China Fishes Discipline Chemistry Adult Female Models, Theoretical Risk Assessment Environmental Exposure Metabolism Methylmercury Compounds Pregnancy Food Chain Chemistry Animals Diet Analysis
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Health, Toxicology and Mutagenesis

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