A lethal combination
The category of pollutants that are formed as a result of chemical reactions.
What are secondary pollutants?
This primary pollutant comes from dust, dirt from wind erosion, soot, and smoke.
What is particulate matter (PM)?
The name for a chemical that lowers the pH and releases hydrogen ions; the opposite of a base.
What is an acid?
The name of the law, passed in 1977 and 1990, that set standards to fight against air pollution.
What is the Clean Air Act?
Nitrogen oxides, sunlight, and VOCs produce this "bad" secondary air pollutant.
What is ozone?
Type of effects that are due to long term exposure at low concentrations.
What are chronic effects?
According to the United Nations Environment Program, this is the greatest worldwide environmental health hazard.
What is air pollution?
One main acid in acid precipitation is sulfuric acid. The name of the other acid in acid rain is ______.
What is nitric acid?
The name of the federal agency that administers the Clean Air Act.
What is the Environmental Protection Agency (EPA)?
"Good" ozone is found in this atmospheric layer.
What is the stratosphere?
Name for the type of pollutants that significantly increase the risk of lung cancer.
What are carcinogens?
This colorless, odorless, primary pollutant is a poisonous gas that binds to hemoglobin in the blood and blocks oxygen delivery.
What is carbon monoxide?
The part of North America with the highest amount of acid precipitation.
What is eastern North America?
The name of the standards that set highest allowable levels for six criteria pollutants.
What are the National Ambient Air Quality Standards (NAAQS)?
"Good" ozone is formed when UV radiation splits apart this type of molecule.
What is oxygen (O2)?
Crops are highly susceptible to this air pollutant, and are especially damaged in the summer when this pollutant's levels are highest.
What is ozone?
This primary pollutant is found in coal and is a major source of acid rain.
What is sulfur dioxide?
A condition that fights and protects against the effects of acid precipitation; limestone provides this to lakes.
What is acid neutralizing capacity (ANC)?
The agreement of 1987 that scaled back the release of contaminants to stop the growth of the hole in the ozone layer.
What is the Montreal Protocol?
The name of the gaseous pollutants that are responsible for the hole in the ozone layer.
What are chlorofluorocarbons? (CFCs)
Photochemical reactions between VOCs and NOx produce this lethal secondary pollutant.
What are peroxyacetal nitrates? (PANs)
This primary pollutant is an odorless radioactive gas that can accumulate inside homes.
What is radon?
The process by which N2 in the air is converted to ammonia (NH3) for agricultural use. It is important because it ultimately leads to nitrate in the atmosphere and acid rain.
What is the Haber-Bosch process?
NESHAPs are standards that were established for the regulation of these pollutants.
What are air toxics?
What are the 187 toxic air pollutants?
This device prevents "bad" ozone and other pollutants by removing NOx and oxidizing carbon monoxide to carbon dioxide.
What is a catalytic converter?