Air pollution is a mixture of solid particles and gases in the air. Emissions from automobiles, chemicals from factories, dust, pollen and mold spores can be suspended as particles. Ozone, a gas, is a fundamental component of air pollution in cities. When ozone is air pollution is also called smog.

Some air pollutants are toxic. Inhalation may increase the chances of having health problems. People with heart or lung disease, older adults and children are at greater risk of problems from air pollution. Air pollution does not occur only on the outside: the air inside buildings can also be contaminated and affect your health.

The contamination that have Cali is much because the industries and others things contaminated and the earth is sick for all the contamination that is producing the people, the industries of yumbo is the more contaminated industries in Cali because in yumbo have many industries .

The waste that throw to the water  all the industries of Cali is very dangerous for the environment because the animals and all the living things is die for the contamination or the waste that is throw the industries to the water.

Also the water that all drink is end because the water is contaminated and the people can not drink because can intoxic.

The animals of the sea is die because all the contaminated  water of the rivers lead in the sea , and all the waste that lead in the sea  make that the animals die, and the people also die for the contamination.