Air pollution issues

Acid rain, smog, transboundary air, ozone layer, contaminants, pollutants, heavy metals, toxics.

Most requested

Acid deposition, pollutants, effects, history, linkages, activities, frequently asked questions.

Acidification, emissions, domestic agreements, acid pollutants, pollution, strategy.

Activities, Canada’s response, future actions, response instruments, committees.

Gases, particles, haze, effects, pollutants, levels, health, environment, history, winter smog.

Mixture of smoke and fog, ozone, management programs, particulate matter, effects, pollutants.

Air quality, concerns, notification, international, agreement, strategy, Canada-United States.

Regulatory information, depletion, impacts, climate change and protection of the ozone layer.

Emissions, precursors, production pathways, meteorological processes, climate change, mercury.