Humans can create a large amount of DUST with our activities, give an example of how we do this?

What does red color mean in the AQI?

What is "The contamination of the air because of substances being added to the atmosphere that are harmful to the health of humans and other living beings, or cause damage to the climate."

What makes up more than 75% of the air?

What are some examples of substances we SPRAY DIRECTLY INTO THE AIR?

What does orange color mean in the AQI?

What does yellow color mean in the AQI?

Roughly how many people die in Vietnam from air pollution every year?

Is air pollution bad for our health?

What is the biggest cause of air pollution?

How much of the air is oxygen?

How can we protect ourself from air pollution when we go outside?

What does purple color mean in the AQI?