Occupational Diseases / / May 15, 2016
Mercury - liquid metal evaporates at room temperature.Contact with mercury takes place in the production and application of various mercury preparations (pesticides), explosives (mercury fulminate), devices (thermometers, pressure gauges, and so on. N.).MPC - 0.01 mg / m3.
mercury penetrates into the body (in the form of dust or vapor mercury compound) through the lungs, and partly through the gastrointestinal tract.Perhaps penetration and through intact skin.Circulates in the blood as albuminates, deposited in parenchymatous organs, lung, brain and bones.Excreted by the kidneys, salivary glands, and other (including milk).There are both acute and chronic poisoning.
Mercury is one of the so-called thiol poisons blocking sulfhydryl groups of protein compounds and those violating the protein metabolism and the enzymatic activity of the organism.It affects mainly the nervous and excretory systems.
observed ulcerative stomatitis, enterocolitis (in severe cases, hemorrhagic), kidney dis
Chronic intoxication is manifested mainly damage to the nervous system.Functional stage of intoxication is characterized by neurotic syndrome.A typical manifestation of autonomic disorders (tendency to tachycardia, hypertension) in the absence of asthenia.Possible low-grade fever.Often there are "eye" symptoms - Dalrymple, Graefe, Kocher, Shtelvaga.The thyroid gland is often enlarged, there are signs of its hyperfunction.Functional disorders of the heart and gastrointestinal tract.The most common symptom - small intense tremor fingers outstretched hands, feet raised, age, language.Increased emotional excitability, sometimes - self-doubt, shyness;decrease in mental performance, memory and attention.Metallic taste in mouth, increased salivation, periodontitis (loosening, loss of teeth), bleeding gums, gingivitis (stomatitis chronic intoxications in the functional phase is not observed).
in blood - lymphocytosis, monocytosis, rarely - anemia, leukopenia.The urine sometimes - traces of protein, individual red blood cells.With the progression of intoxication tremor takes intentsionnogo character, and its amplitude is gradually increased (a sign of the transition of the disease into the organic phase).