Biological monitoring for mercury within a community with soil and fish contamination

Environmental Health Perspectives
M HarnlyL Goldman

Abstract

To assess the impact of elevated levels of inorganic mercury in soil and dust and organic mercury in fish, biological monitoring was conducted among Native Americans living next to an inactive mercury mine in Clear Lake, California. Of resident tribal members, 46% (n = 56) participated in biomonitoring. Urine mercury levels are equivalent to background, indicating that soil and dust exposures among study participants are not substantial. The average blood organic mercury level among study participants is 15.6 +/- 8.8 micrograms/l (n = 44), which is higher than levels reported by others among those who do not consume fish (2 micrograms/l). Consistent with results from other studies, a correlation between fish consumption and blood organic mercury is observed (p = 0.03). The margin between observed and established adverse effect levels for adults is examined for blood organic mercury and found to be less than 10-fold for 20% of the study population. Protective public health efforts for the study population and other similarly exposed populations, notably those who consume commercial fish products, are considered.

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Citations

Apr 5, 2003·Environmental Health Perspectives·Joyce S TsujiPatrick J Sheehan
Feb 3, 2006·Environmental Health Perspectives·Jane M HightowerGerman T Hernandez
Jul 15, 2015·Archives of Environmental Contamination and Toxicology·Marie NoëlPeter S Ross
Jan 17, 2012·Sensors·Takeshi Hirano, Kazuyoshi Tamae
May 29, 2009·The American Journal of Clinical Nutrition·Edeltraut KrögerDanielle Laurin

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