These are released into the air from many sources. Any form of aerosol including hair spray and other household items release CFC into the atmosphere. Items that we have learned to depend on for our comfort like air conditioning also release harmful toxins. Another household item that has been to to secret CFC's are refrigerators . An environmental hazard that develops because of pollutants is known as Acid Rain .
Acid rain has a way of eating away plants, and ruining soil that was otherwise farmable.
Acid rain in its worst case is found in Asia, primarily China. China has a huge problem because a majority of the power there comes from burning coal. This releases harmful gases into the atmosphere . An example that is hitting a little closer to home is the death rate of oaks in the Appalachian region. The death rate of the oaks has more than tripled between the years of 1960-1990.