Learn more about air pollution and how it affects you

We've put together a short library of information articles that help explain why air pollution matters, and how the various forecasts and statistics are compiled.

• Air pollution - a significant problem
• The key pollutants
• How air pollution affects health
• Short-term effects of air pollution on health
• Health advice for the Daily Air Quality Index
• How the Daily Air Quality Index is calculated
• Monitoring site types