In our race to modernize, mass produce and increase productivity, we have accelerated mechanization creating enormous amounts of pollution from industrial and chemical plants, vehicles, and other sources. Even in nature, in spring, there is pollution from pollen and allergens. Living close to farms there is dust from tilling soil and sprays. In cities, seasonally, winds blow in more pollution, and construction sites add even more pollutants to the air. It seems there is no escape from pollution.