The acidity of rainwater in Japan, for example, showed the determination of PH and other components in rainwater collected on 2 different sites (industrial and residential areas) which show the effect of air pollution on rainwater (Adashi, Asaka, Ozama, Sawai and Kobayashi, 1990). This research can also explain the continuous effect of acid rain which can change the ecosystem, which seems to be the main resource of our planet because the existence of all humans, animals and plants depends on the ecosystem. In addition, climate change, which is another modern effect of air pollution, must worry many countries in this considerable change because people are affected in many circumstances such as typhoons, waves of heat and drought. These theses can harm life and the environment.