Air pollution is a mixture of solid particles and gases in the air . Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles. Ozone, a gas, is a major part of air pollution in cities. When ozone forms air pollution , it's also called smog. Air pollution causes damage to crops, animals, forests, and bodies of water. It also contributes to the depletion of the ozone layer, which protects the Earth from the sun's UV rays. ... Some of the other environmental effects of air pollution are haze, eutrophication, and global climate change. The possible mechanism by which fine particulate air pollution may increase the risk of cardiovascular disease include o An increase in mean resting arterial blood pressure through an increase in sympathetic tone and/or the modulation of basal systemic vascular tone. o An increase in the likelihood of intravascular thrombosis through transient increases in plasma viscosity
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