Lead pollution caused by lead and its compounds emitted from human production and life is lead pollution. Lead can cause pollution in the atmosphere, water, and soil. Lead mining, lead and copper smelting, iron and steel production, coal-fired fuel, battery production, and Portland cement industry, production and use of lead-containing pesticides and lead-containing compounds (such as lead and lead, etc.), lead emissions from cars, etc. It is the main source of lead pollution. Lead is a cumulative poison that invades the human body through the digestive tract and respiratory tract and accumulates in the liver, kidneys, bones, spleen, and brain, causing lead poisoning.