Longitudinal mercury monitoring within the Japanese and Korean communities (United States): implications for exposure determination and public health protection.
BACKGROUND: Estimates of exposure to toxicants are predominantly obtained from single time-point data. Fish consumption guidance based on these data may be incomplete, as recommendations are unlikely to consider impact from factors such as intraindividual variability, seasonal differences in consump...
| Published in: | Environmental Health Perspectives Vol. 117; no. 11; pp. 1760 - 1767 |
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| Main Authors: | , , , , , , |
| Format: | research tables/charts Journal Article |
| Published: |
National Institute of Environmental Health Sciences
Nov2009
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105280167&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105280167 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00916765 3B5 jtl: Environmental Health Perspectives issn: 00916765 maglogo: N pubinfo: dt: Nov2009 vid: 117 iid: 11 pid: 56539 pub: National Institute of Environmental Health Sciences place: Research Triangle Park, North Carolina artinfo: ui: 105280167 2010522311 10.1289/ehp.0900801 NLM20049129 PMC2801193 105280167 ppf: 1760 ppct: 7 formats: fmt: @attributes: type: P tig: atl: Longitudinal mercury monitoring within the Japanese and Korean communities (United States): implications for exposure determination and public health protection. aug: au: Tsuchiya A Hinners TA Krogstad F White JW Burbacher TM Faustman EM Mariën K affil: Department of Environmental and Occupational Health Services, University of Washington, Seattle, Washington sug: subj: Environmental Monitoring Fish Food Intake Mercury Analysis Adult Data Analysis Software Female Funding Source Hair Analysis Human Interviews Japanese Persons Koreans Paired T-Tests Post Hoc Analysis Questionnaires Washington Adult: 19-44 years Female ab: BACKGROUND: Estimates of exposure to toxicants are predominantly obtained from single time-point data. Fish consumption guidance based on these data may be incomplete, as recommendations are unlikely to consider impact from factors such as intraindividual variability, seasonal differences in consumption behavior, and species consumed. OBJECTIVES/METHODS: We studied populations of Korean (n = 108) and Japanese (n = 106) women living in the Puget Sound area in Washington State to estimate mercury exposure based on fish intake and hair Hg levels at two and three time points, respectively. Our goals were to examine changes in hair Hg levels, fish intake behavior, and Hg body burden over time; and to determine if data from multiple time points could improve guidance. RESULTS/CONCLUSION: More than 50 fish species were consumed, with eight species representing approximately three-fourths of fish consumed by the Japanese and 10 species representing approximately four-fifths of fish intake by the Koreans. Fish species responsible for most Hg intake did not change over time; < 10 species accounted for most of the Hg body burden in each population. Longitudinal variability of hair Hg levels changed slowly across the study period. Japanese with hair Hg levels > 1.2 ppm (mean, 2.2 ppm) consumed approximately 150% more fish than those with levels < or = 1.2 ppm (mean, 0.7 ppm). However, because many participants consumed substantial amounts of fish while having hair-Hg levels < or = 1.2 ppm, the nutritional benefits offered from fish consumption should be obtainable without exceeding the RfD. We observed a 100% difference in fish intake between open-ended and 2-week recall fish consumption surveys. Open-ended survey data better represent Hg intake as determined from hair Hg levels. Single time-point fish intake data appear to be adequate for deriving guidance, but caution is warranted, as study is required to determine the significance of the different outcomes observed using the two survey time frames. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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