There are many different types of pollution that have different effects on people. Some of them are:
- Sulfur Dioxide (SO2) is one of the most common types of pollution. It is colorless and suffocating.
- Nitrogen Dioxide + nitric oxide = NO2. It is reddish brown.
- Ozone is a poisonous gas with a sharp and cold odor.
- Carbon monoxide is an extremely toxic type of pollution.
Go to our next page to see how pollution can affect people and other living things.