What are the effects of air pollution on health?

The air is essential to life, but it can have harmful effects if the quality is bad. Pollution is an immediate danger to health, but also an effect that is amplified over the years. The people most sensitive, such as children, the elderly, heavy smokers, people with heart or lungs are most affected by air pollution. For them, the pollution may promote disease, aggravate some, and sometimes even hasten death. The effects of pollution on health increases with concentrations of pollutants in air and duration of exposure . That is why it is advisable for sensitive people, if pollution episode, limit their physical exertion, not to leave their homes and, of course, to quit. It is possible to ask their doctor if concerned about her health or that of those children. The regulation defines certain indicators of pollution, levels of reference to guide public policy. These limit values and alert thresholds.