Air Pollution is becoming a major reason for oxidative stress and inflammation in human cells, which is the responsible for chronic lung diseases and cancer.
In 2013, the International Agency for Research on Cancer of the World Health Organization (WHO) classified air pollution as a human carcinogen.
It is also responsible for emphysema, asthma, and other respiratory diseases, such as chronic obstructive pulmonary disease (COPD). Moreover PM and nitrogen oxide are responsible for chronic bronchitis.
There is also in the increase of mortality rate because of wildfires all the around the world.
Fine PM can impair blood vessel function and speed up calcification in arteries, which clog them and increase the risk of cardiac arrest.
NIEHS researchers established links between short-term daily exposure by post-menopausal women to nitrogen oxides and increased risk of hemorrhagic stroke.

For a cross-section of older Americans, exposure to TRAP can result in lowered levels of high-density lipoprotein, sometimes called good cholesterol, increasing their risk for cardiovascular disease.

According to a National Toxicology Program (NTP) report, the exposure TRAP increases the risk of changes in blood pressure in pregnant women due to which there are problems like pre-term birth, low birth weight and maternal and fetal death and illness.
There is also a increasing risk of breast cancer in women living near major roadways and industrial areas. The air borne toxic substances like methylene chloride, which is present in aerosol products.
The NIEHS Sister Study found other airborne toxic substances, especially methylene chloride, which is used in aerosol products and paint removers, are also associated with increased risk of breast cancer.
Occupational exposure to benzene, an industrial chemical and component of gasoline, can cause leukemia and is associated with non-Hodgkin’s Lymphoma.

A long-term study, 2000-2016, found an association between lung cancer incidence and increased reliance on coal for energy generation.

Reference:National Institute of Environment Health Sciences.