The adverse effect of air and environmental pollution are ubiquitous in literature. It is estimated by United Nation that around 47% of the global population reside in cities which ultimately increasing the vehicle released pollutants. The United Nation Environmental Program has identified this type of pollution as the most alarming air pollution. Humans are exposed to organic and inorganic pollutant through environmental and occupational sources. Epidemiological evidences shows link between exposure to occupational and non-occupational pollutants and risk of cancer. The people who are at risk of occupational pollution belong mainly to colour industry, chemical industry, glass industry, and cotton fibre industry. There are various occupations and risk factors associated with pollution which are either not highlighted or neglected.