Pollution
Fumes from the back of cars and trucks and fill the air with pollution.
What is exhaust?
The color on AirNow that shows the air is clean and healthy to breathe.
What is green?
Suggestions that help people keep themselves safe when the outdoor air is not healthy.
What are air quality safety tips?
Smaller pieces of pollution from vehicles, factories, and fires that can travel long distances and make air quality poor.
What is PM2.5?
Air pockets deep inside your lungs that capture oxygen and move it into your blood.
What are alveoli?
Coal, oil, and natural gases that produce harmful air pollution when burned.
What are fossil fuels?
The color on AirNow that means the air is ok to breathe but not completely healthy.
What is yellow?
Tiny pieces of pollution from smoke and smog that make asthma worse and the air unsafe for older adults.
What is particle pollution?
Larger pieces of pollution from road dust, construction, and industrial activity that can affect breathing and overall air quality.
What is PM10?
The breathing tubes that carry air from your windpipe down into your lungs.
What are bronchi?
Hazy layer that hangs over cities and makes the sky look gray and the air unhealthy to breathe.
What is smog?
The color on AirNow that means the air is unhealthy for everyone.
What is red?
A harmful mix of gases and particulate from cars, factories, construction or wildfires that fill the air.
What is pollution?
The physical trait of the pollution particles that determines how far they travel in your body.
What is size?
A sticky substance produced by your airway glands to protect your lungs by trapping larger particles.
What is mucus?
Heat‑trapping gases in the air that build up and make the planet slowly warm over time.
What are greenhouses gases?
The score that tells you how clean or polluted the air is and if it is good to be outside.
What is the Air Quality Index (AQI)?
Tiny particles from trees, grasses, and weeds that make outdoor air harsher for people with allergies or asthma.
What is pollen?
Bigger bits of pollution that land in your nose and throat. Your body clears them with mucus and coughing.
What is PM10?
Moving hair-like structures that line your airways and act like brushes to sweep pollution particles out.
What are cilia?
Cars, factories, and fuels create this kind of pollution.
What is human made pollution?
Two environmental sources that can worsen the air quality by adding pollution to the air.
What are smog and wildfire smoke?
This type of pollution made from oxygen gases can cause coughing, wheezing, and trouble breathing.
What is ozone?
Tiny bits of pollution that reach your lung’s air sacs where they can enter your blood and travel through your body.
What is PM2.5?
This test measures how well your lungs can move air in and out.
What is lung function test?