There are pollutants in the atmosphere that have reached a level that is causing a threat to the health of individuals. Pollution began in the early times from the gases of molten volcanic activity being released into the atmosphere. Additional pollutants were caused by the combustion of biomass, volatilization of organic compounds, and the release of bio-effluents from living organisms. Pollutants can be caused by the natural movements and actions of the planet itself. Particles can become suspended in the air by abrasive action of surface winds, fires, wave action, and the fracture of crystalline aerosols. Spores, fibers, and seeds can cause natural biological pollution. Even these natural events can have an adverse effect on the climate and weather as well as agriculture and humans.
When humans began building shelters for themselves they brought outdoor pollutants indoors with them. When an outdoor pollutant enters a building it becomes a source of indoor pollution. With the discovery of fire which was used for cooking and heat came smoke. The coldness and dampness of shelters was the perfect place for mildew to grow. The first shelters also had dirt floors which allowed for diseases to be transmitted from pests, microorganisms, and pets.
Since the times of dirt floors we have industrialized not only on a personal level with the construction of our homes, but also on a business level with the construction of our factories and office buildings. The increase in population has caused the increase in the use of fuels and agricultural and mineral resources. As a result of these increases air pollution has become a worldwide problem.
In 1973 with the oil embargo came the rise of energy conserving practices and devices. This had a direct effect on the indoor air of the nation. Machines were made to run... [continues]
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(2005, 12). Indoor Air Pollution. StudyMode.com. Retrieved 12, 2005, from http://www.studymode.com/essays/Indoor-Air-Pollution-73591.html
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