Dr Mridul Umesh - Air pollution

hello everyone welcome to this module on air pollution causes effects and prevention methods this module covers definition of air pollution sources of air pollution major air pollutants indoor air pollution impact of air pollution control and prevention strategies for tackling air pollution let us begin with the definition of air pollution air pollution can be defined

as any undesirable change in the physical chemical or biological composition of air that can adversely affect the environment and human beings let us analyze what are the causes of air pollution causes of air pollution are broadly divided into two categories the first one is natural sources which includes forest fire Cyclones and other

natural calamities the second category is the anthropogenic sources like burning of fossil fuels industrial emission smoke coming from Vehicles burning of waste agriculture practices like burning of crop residues after harvest now let us see what are the different types of air pollutants and how they can be classified air pollutants are broadly classified into

two major categories as mentioned in the table along with their sources and impact on human health the first category is a primary air pollutants that includes carbon monoxide lead nitrogen oxide ground level ozone particulate matter and sulfur dioxide the secondary air pollutant category composes of volatile organic compounds peroxy atile nitrate polycyclic aromatic

hydrocarbons and persistent organic compounds another major concern which is of Greater importance and significance once comes to the study of air pollution is the indoor air pollution apart from the usual air pollutants which is responsible for the air pollution on a global level the indor air pollution is contributed by various factors like the