As a result, it is especially dangerous to human health, respiratory system, nervous system, skin cancer and may accumulate in body tissue.Each type of substance, the pollution will affect different health.
This is harmful to human health. The respiratory system Skin cancer, nervous system and may accumulate in body tissue. pollutant health effects of each type will be different.
The harmful to human health, especially respiratory, skin cancers, nervous system and may accumulate in the body tissues pollutant each type will affect the health of different .