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Air pollution can occur naturally or be caused by human activities. [4] Air pollution causes around 7 or 8 million deaths each year. [5] [6] It is a significant risk factor for a number of pollution-related diseases, including heart disease, stroke, chronic obstructive pulmonary disease (COPD), asthma and lung cancer.
Several other identified toxic gases emitted (following the interaction of the chemicals concerned with water and air) include acrolein, acrylonitrile, ethylbenzene, hydrogen chloride, D-limonene, toluene and xylene, which if inhaled, can cause headache, nausea, fainting and breathing difficulty.
Visual pollution is the degradation of the visual environment due to unattractive or disruptive elements that negatively impact the aesthetic quality of an area. It can affect urban, suburban, and natural landscapes. [1]