Air quality index

Hazards

• A public scale communicating outdoor pollutant levels and associated health concern.

Controls

• Use current local data plus site conditions and worker needs to select controls.

Personal protective equipment

• Select task-specific PPE only after hazards and higher-order controls have been evaluated.

Regional considerations

• Applicable law, permits, collective agreements, venue rules, and qualified-person decisions take precedence.

In practice

Use current local data plus site conditions and worker needs to select controls.

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