What are the hazards of tin fumes from the iron and steel to the human body?

by:Funglan     2022-01-25
What are the hazards of tin fumes from the iron and steel to the human body? The composition of solder fumes: During the soldering process, stinging fumes will be produced. 95% of the fumes come from the particulate matter produced by the solder, and 5% are harmful gases. Similarly, a large amount of harmful gases will be generated in other working environments such as cleaning and spraying. These pollutants will cause great harm to operators and the environment. In Europe, the protection of the environment by the protective agent for welding workers has been enforced in the form of legislation. Welding without any protective measures is not allowed. The ISO14001 standard has details on the treatment and protection of pollution in the production process. Provisions. The harm of smoke to human body ★Nervous system Mainly manifested as neurasthenia, polyneuropathy and encephalopathy. Neurasthenia is one of the early and common symptoms of lead poisoning, which is manifested as dizziness, headache, fatigue, memory loss, and dreaminess. There are many early lead poisoning patients, the above symptoms are not obvious. Polyneuropathy is a syndrome characterized by symmetrical peripheral sensory disturbances in the limbs, paralysis of lower motor neurons and autonomic dysfunction. Encephalopathy, the most common lead poisoning, is manifested in symptoms such as headache, nausea, vomiting, high fever, irritability, convulsions, lethargy, coma, and other syndromes similar to epilepsy, meningitis, cerebral edema, and psychosis. ★Digestive system Abnormal digestive tract symptoms in mild cases, abdominal cramps in severe cases. Gastrointestinal symptoms include a metallic taste in the mouth, loss of appetite, upper abdominal swelling and discomfort, abdominal pain and constipation, dry stools in the form of abacus beads, and intractable constipation often precedes the onset of colic. Abdominal colic is a sudden onset, mostly in the cystic cycle, continuous pain, aggravated by the paroxysmal, each attack from a few minutes to several hours. The hidden pain and grief are severe and unbearable, and they often bend over and bend their knees, toss and turn uneasy, and press their hands on the abdomen to relieve the pain and grief. At the same time, he was pale, sweaty, and vomited. ★ It is common in the blood system that lead interferes with the process of hemoglobin synthesis and causes metabolite reform, such as low blood δ-ALAD activity, increased urine δ-ALA, increased urine CP, increased blood FEP, ZPP, etc., and finally leads to blood deficiency, mostly Hypochromic normocytic blood deficiency. ★Other systems The harm of lead to the kidney is more common in acute, subacute lead poisoning or severe chronic cases, proteinuria, red blood cells, white blood cells and casts and renal function decline, leading to toxic nephropathy, accompanied by hypertension. Female workers are more sensitive to lead, especially during pregnancy and breastfeeding, which can cause infertility, miscarriage, premature birth, stillbirth and lead poisoning in infants. Male workers can cause sperm count elimination, decreased activity and morphological changes. It is the responsibility of the company to protect the health of workers. Solder fume can be removed with a solder fume purifier. The purification rate is 99.9%. No queuing required!
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