General pollution
The introduction of harmful materials into the environment.
What is pollution?
A colorless or blue-ish gas. Naturally occurs in the stratosphere, but becomes a pollutant in the troposphere when nitrogen oxides react with VOCs in sunlight. Can trigger asthma and other respiratory conditions.
What is ground-level ozone?
An index for reporting air quality
What is an air quality index?
Is not technically a pollutant but contributes to climate change.
What is Carbon Dioxide
Who enforces the CAA?
What is the EPA
The year the CAA became a law
What is 1970?
Burning of sulfur-containing materials causes this colorless gas to become an air pollutant. When mixed with water droplets in the air, this pollutant contributes to acid rain.
What is sulfur dioxide?
Miniscule articles in the air, such as dust, dirt, soot, smoke, etc. Can be a mixture of solid particles and liquid droplets in the air.
What is particulate matter?
AQI that is in the green / Good Zone goes from zero to what number?
What is 50?
The name of the air pollutants measured and monitored under the CAA
What are criteria air pollutants
The layer of the atmosphere that most pollution occurs in.
Troposphere
A heavy metal found underground; can become an air pollutant through processing of mineral ores and metals, as well as burning certain types of fuel for vehicles. Poisoning by this pollutant causes neurological problems, especially in children.
What is lead?
The designations for the two common sizes of particulate matter.
What is PM10 and PM2.5?
Which AQI color is unhealthy for sensitive groups?
What is ORANGE?
Nitrogen oxide, sulfur oxide, carbon monoxide, lead, etc
What are (some examples of) the six criteria pollutants?
Burning fossil fuels in vehicles, factories, and power plants produces this poisonous and colorless gas. Breathing a high concentration of this gas reduces the amount of oxygen that can be transported into the bloodstream.
What is carbon monoxide?
Is harmful because it can stay in our bodies for long time due to their miniscule size, and damage lungs and heart when present.
What is PM?
Exposure to air pollution causes what damage to humans?
What is reduces life expectancy or harms respiratory system or cardiac system?
These are Eugene's worst TWO pollutants year round
What are PM and Ozone?
A reddish-brown gas; can be emitted into the air through car exhaust, factories, power plants, and lightning strikes. A component of harmful ground-level ozone.
What is nitrogen dioxide?
The worst air quality designation on the AQI scale is called ...
What is Hazardous?
Which color on the AQI index indicates very unhealthy levels of air pollution?
What is purple?