The harm of faucet lead exceeding the standard

Every household now has a faucet, but there has always been a hidden danger in the faucet, that is, the lead in the faucet exceeds the standard. The excessive lead in the health of family members is a great hazard. How much do you know about these hazards?

The nervous system is most vulnerable to lead. Lead can cause changes in visual intelligence, visual motor function, memory, reaction time, language and spatial abstraction, sensory and behavioral functions, and fatigue, insomnia, irritability, headache, and hyperactivity.

Lead can inhibit the synthesis of heme and iron, zinc, calcium and Other elements of antagonism, induce anemia, and increase with the increase in lead poisoning. Lead poisoning can lead to excessive accumulation of intracellular calcium ions, which increases the tension and tension of vascular smooth muscle and causes hypertension and arrhythmia. Long-term exposure can cause chronic nephritis in children and adults. Due to the large compensatory function of the kidney, the renal toxicity of lead is often underestimated. Lead reduces the clearance of kidneys, which in turn increases the retention of lead in the kidneys and other tissues.

Lead binds to antibodies. Increased levels of lead in drinking water reduce circulating antibodies. Lead can act on lymphocytes to reduce complement titer, increase the body's susceptibility to endotoxin, reduce resistance, and often cause repeated infections of the respiratory tract and intestinal tract. Lead can inhibit the secretion of vitamin D-activating enzymes, adrenal cortex hormones and ****, leading to physical development disorders in children. Each 100 μg/L increase in blood lead levels is less than 1-3 cm in height.