Air Quality Standards Reference

A single-page reference for the Saudi Ambient Air Quality Standards — including pollutant limits, averaging periods, measurement requirements, and a side-by-side comparison with the WHO 2021 guidelines.

What's inside

• PM10, PM2.5, SO2, NO2, O3, CO, Pb, Benzene limits
• Averaging periods (1h, 8h, 24h, annual)
• Measurement and equivalency requirements
• Saudi AAQS vs WHO 2021 guideline comparison

Who it's for

Air quality engineers, monitoring teams, EHS reporters.