APES Chapter 15 VOCAB

The introduction of chemicals, particulate matter, or microorganisms into the atmosphere at concentrations high enough to harm plants, animals, and materials such as buildings, or to alter ecosystems.

Solid or liquid particles suspended in air. (Also known as "particulates"; "particles.")

Reduced visibility.

A class of air pollutants formed as a result of sunlight acting on compounds such as nitrogen oxides.

A secondary pollutant made up of three oxygen atoms bound together.

A type of air pollution that is a mixture of oxidants and particulate matter.

Smog that is dominated by oxidants such as ozone. (Also known as "Los Angeles-type smog"; "brown smog.")

Smog that is dominated by oxidants such as ozone. (Also known as "Los Angeles-type smog")

Smog that is dominated by oxidants such as ozone. ("brown smog.")

Smog dominated by sulfur dioxide and sulfate compounds. (Also known as "London-type smog"; "gray smog"; "industrial smog.")