Conditions for air represent the current state of air quality in Alberta. Listed below are the condition indicators monitored for air quality in Alberta.

Alberta's Air Quality Index: ratings are based on the effects air quality has on people, animals and the environment. The index is a simplified tool designed to give the public easy access to information on Alberta's air quality.

Benzene Levels: part of the large group of chemicals called volatile organic compounds (VOCs). Motor vehicle emissions are the main source in Alberta. Benzene can be harmful to the environment and prolonged exposure can cause serious health effects in humans. This indicator shows trends in annual average and peak concentrations in Edmonton and Calgary since 1990.

Benzo(a)pyrene Levels: a member of a class of compounds known as polycyclic aromatic hydrocarbons (PAHs), benzo(a)pyrene can travel long distances, accumulate in the environment and does not break down easily. This indicator shows trends of annual average and peak concentrations at Edmonton, Calgary and Fort Saskatchewan since 1990.

Carbon Monoxide Levels (CO): a colourless, odourless gas that reduces the ability of blood to absorb and deliver oxygen to cells in the body. It is formed when carbon-based fuels, such as gasoline, natural gas and wood, are incompletely burned. This indicator shows trends in annual average and peak concentrations of carbon monoxide.

Fine Particulate Levels (PM_2.5): sources can include soil, roads, agricultural dust, vehicles, industrial emissions, smoke from forest fires, cigarettes, household fireplaces and barbecues. In high concentrations, suspended particulates may cause human health problems. This indicator shows the annual average and peak concentrations at 24 stations in Alberta since 1994.

Hydrogen Sulphide Levels (H₂S): a gas with a "rotten egg" smell. Industrial emissions are the major source. Hydrogen sulphide can cause health effects in humans, be toxic to animals, birds and aquatic environments and also presents an odor problem. This indicator shows trends in annual average and peak concentrations at 12 stations in Alberta since 1990.

Nitrogen Dioxide Levels (NO₂): part of a family of gases known as nitrogen oxides (NO_x), formed through burning at high temperatures. Presence in the atmosphere has health and environmental effects; it also contributes to ground level ozone and particulate matter. This indicator shows trends in annual average and peak concentrations at 30 stations in Alberta since 1990.

Ozone Levels (O₃): a pale blue gas identified by a sharp odour that is found in the upper atmosphere and near the ground. Ground-level ozone is a component of photochemical smog and can be harmful to human health and vegetation. This indicator shows annual average and peak concentrations at 27 stations in Alberta since 1990.

Sulphur Dioxide Levels (SO₂): a compound formed when fossil fuels, such as coal and natural gas, are burned. Sulphur dioxide can cause health effects and is a key contributor to acid deposition, including acid rain. It is also contributes to particulate matter. This indicator shows trends in annual average and peak concentrations at 29 stations in Alberta since 1990.