Mercury in hair as a biomarker of exposure in a coastal Venezuelan population.

Mercury in hair as a biomarker of exposure in a coastal Venezuelan population. Research Abstract Details 

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Mercury in hair as a biomarker of exposure in a coastal Venezuelan population. Abstract Text:

Maritza Rojas,Kunihiko Nakamura,David Seijas,G Squiuante,Maria Alejandra Pieters,Saba Infante,

To assess mercury exposure and potential risk, total mercury (THg-H) and methylmercury (MeHg-H) in hair were studied in 160 adults. The study group consisted of 60 individuals living in the north central coast of Venezuela. A section of the area was known to be contaminated with mercury from a chlor-alkali plant installed near one of the tributary rivers of the Caribbean Sea. The study group was selected from 4 inclusion criteria points. The control group was composed of 100 individuals selected from Carabobo state with no known exposure to Hg. A questionnaire was designed to collect demographic, health information, work activities and fish consumption habits. Hair samples were analyzed for THg. Samples with THg-H > 5 microg/g were also analyzed for MeHg. The mean THg-H was 1.88 +/- 1.50 and 0.99 +/- 0.87 microg/g for the study and control groups, respectively. The study group was statistically higher than control individuals, however, no statistical differences of THg-H were found between each of the 4 categories of both groups. Mean MeHg-H value was 3.67 +/- 1.25 microg/g. Associations were made between Hg-H and several variables. No significant relationship was noted between Hg-H levels and clinical symptoms. R analyses and t-tests were used to determine associations between questionnaire variables and THg-H. The main predictors of THg-H levels in the study group were fish consumption and frequency. As both groups presented relatively low values for THg-H and MeHg-H, the results of this study indicate that Hg exposure did not exceed safe levels. However, a more in-depth exposure assessment should be conducted to more accurately assess this exposure, specifically in terms of Hg content in water and fish sampling.

Mercury in hair as a biomarker of exposure in a coastal Venezuelan population. Publishing Authors By Initials

M Rojas,K Nakamura,D Seijas,G Squiuante,MA Pieters,S Infante,

For similar chemical actions and uses: toxic actions: environmental pollutants: water pollutants: water pollutants, chemical research abstracts see: chemical actions and uses: toxic actions: environmental pollutants: water pollutants: water pollutants, chemical research

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Mercury in hair as a biomarker of exposure in a coastal Venezuelan population. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Investigación clínica

VOLUME: 48

Page Numbers: 305-15

Journal Abbreviation:

ISSN: 0535-5133

DAY: 3

MONTH: Sep

YEAR: 2007

Mercury in hair as a biomarker of exposure in a coastal Venezuelan population. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 421531

Mercury in hair as a biomarker of exposure in a coastal Venezuelan population. Keywords Mesh Terms:

KEYWORDS: Water Pollutants, Chemical

MESH TERMS: adverse effects

Chemical & Substance for Abstract: Mercury in hair as a biomarker of exposure in a coastal Venezuelan population. Information

Substance Name: Mercury

Registry Number: 7439-97-6

Grant and Affiliation Information for Mercury in hair as a biomarker of exposure in a coastal Venezuelan population.

AFFILIATION: MRM-CONSULTOX, Valencia, Venezuela. rojas.m@intercable.net.ve

Country: Venezuela

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MEDLINETA: Invest Clin

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