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понятие депутатский запрос относятся к деятельности, Evaluation of mercury exposure level, clinical diagnosis and treatment , Mercury Toxicity - StatPearls - NCBI Bookshelf, Working With Mercury in Industry (Revised. See: 74-120), Human Exposure and Health Effects of Inorganic and Elemental Mercury, EXPOSURE TO MERCURY: A MAJOR PUBLIC HEALTH CONCERN, Health Effects of Exposures to Mercury - US EPA, Mercury | NIOSH | CDC.
While 80–90 % of hair is composed of keratin, which contains an amino acid group high in sulfhydryl groups and thus easily combines with metal. Therefore, with exposure to mercury, the mercury concentration can become high in hair, and hair can show the level of mercury exposure that has occurred over a long period of time. Hair mercury concentration is also known to be proportionate to blood mercury concentration. Such an association can be applied to evaluate blood mercury concentration by measuring hair mercury concentration. The migration of mercury to hair is irreversible. Therefore, a decrease in hair mercury concentration only occurs when hair falls out of the scalp {Nielsen, 1991 #721}. Hair mercury concentration is used as a biomarker of chronic exposure to methylmercury. Once mercury combines with hair, it never separates and remains consistently [–]. Extensive studies have been performed on the association between hair mercury concentration and blood mercury concentration [–]. After exposure to methylmercury, total mercury levels in hair and blood can be used as biomarkers of mercury intoxication. The hair-to-blood mercury concentration ratios set by the U.S. Food and Drug Administration (FDA) and the World Health Organization (WHO) are 250:1 [] and 250–300: 1 [], respectively. Similarly, the ratio set by a 2010 Korean study on 1200 residents of a region was about 278.5:1 []. The internationally recommended limit of hair mercury concentration is 1 mg/kg as proposed by the WHO. However, hair mercury concentration analysis results alone cannot be used to discern whether one is exposed to or intoxicated by mercury. Generally, hair mercury concentration does not exceed 10 mg/kg. However, in moderate mercury poisoning, the concentration level ranges between 200 and 800 mg/kg, and in severe intoxication it goes up to 2400 mg/kg. The WHO recommends the monitoring of methylmercury concentration in pregnant women’s hair and argues that the level of 10 ppm or above can increase the risk of fetal neurological defects [].Other clinical laboratory tests, Thus, the mercury levels requiring treatment in cases of mercury exposure by food ingestion should be set higher than the threshold mercury concentration level known to affect health, and the treatment strategy should be implemented accordingly., Mercury has been used for centuries in multiple capacities, including medicinal and widespread industrial use. Because of this, it is a common chemical exposure and environmental pollutant. There are several forms of mercury that lead to different mercury intoxication syndromes..
This pamphlet provided information on working with mercury (7439976), including industrial uses, effects of exposure to mercury, methods for controlling mercury exposure, reporting symptoms of mercury exposure, management responsibilities, and worker responsibilities., Acute poisoning by mercury vapor inhalation usually occurs accidently in industrial workers who are exposed to high levels of mercury vapor; accidents could also occur when elemental mercury is accidently vaporized in a confined and/or high temperature environment in industry or at home [7, 29]., Identify traditional practices, folk medicines and cosmetics involving mercury, and disseminate information on mercury hazards, exposure prevention and how to clean up spillages., Metallic mercury mainly causes health effects when inhaled as a vapor where it can be absorbed through the lungs. Symptoms of prolonged and/or acute exposures include: Poor performance on tests of mental function. Higher exposures may also cause kidney effects, respiratory failure and death., Some of the health effects exposure to mercury may cause include: irritation to the eyes, skin, and stomach; cough, chest pain, or difficulty breathing, insomnia, irritability, indecision, headache, weakness or exhaustion, and weight loss., Heavy metal poisoning (toxicity) is the result of exposure to heavy metals like lead, mercury and arsenic. Heavy metals bind to parts of your cells that prevent your organs from doing their job..