Air pollutants do harm to human body in many ways, such as respiratory system damage, physiological dysfunction, digestive system disorder, nervous system abnormality, mental decline, cancer and disability.
People call the smoke of this disaster "the smoke of killing". When the concentration of pollutants in the atmosphere is high, it will cause acute pollution poisoning, or aggravate the symptoms, and even kill thousands of people within a few days.
Extended data:
Pollution sources mainly include:
1. Waste smoke, waste gas, noise, dirty water and garbage discharged in people's lives.
2. Exhaust gas and noise emitted by vehicles (all fuel vehicles, ships, airplanes, etc.). ).
3, a large number of chemical substances such as fertilizers, pesticides and herbicides are used for the water flowing out after farmland irrigation.
4. Mine wastewater and waste residue.
5, machine noise, electromagnetic radiation, carbon dioxide pollution, etc.