Go to whole of WA Government search

Air Quality Index for Western Australia

Hourly update of air quality in Western Australia.
  • Air Quality Index 27-10-2021

    The Air Quality Index (AQI) for nitrogen dioxide (NO2), ozone (O3) sulfur dioxide (SO2) and particles (PM10 and PM2.5) are based on clock hour averages while carbon monoxide (CO) is based on 8 hour moving clock averages.

    AQIs represent the concentration of the the gaseous pollutants based on National Environment Protection (Ambient Air Quality) Standard reached for each gas pollutant and enHealth advice on one-hour averaged particle concentrations. Concentrations are measured as ppb (parts per billion), ppm (parts per million) or ug/m3 (micrograms per cubic metre).

    AQI MAX represents the maximum Air Quality Concentration recorded since midnight.
    AQI NOW represents the Air Quality Concentration of the most recent clock hour.

    Armadale A.Q.M.S.AQI MAXAQI NOW
    PM10 8 ug/m3 5 ug/m3
    PM2.5 7 ug/m3 3 ug/m3
    The Armadale A.Q.M.S. AQI at 1000 hrs is GOOD
    Caversham A.Q.M.S.AQI MAXAQI NOW
    CO 0 ppm 0 ppm
    NO2 7 ppb 0 ppb
    O3 27 ppb 27 ppb
    PM10 6 ug/m3 2 ug/m3
    PM2.5 4 ug/m3 0 ug/m3
    The Caversham A.Q.M.S. AQI at 1000 hrs is GOOD
    Duncraig A.Q.M.S.AQI MAXAQI NOW
    CO 0 ppm 0 ppm
    NO2 0 ppb 0 ppb
    PM10 12 ug/m3 6 ug/m3
    PM2.5 4 ug/m3 0 ug/m3
    The Duncraig A.Q.M.S. AQI at 1000 hrs is GOOD
    Quinns Rocks A.Q.M.S.AQI MAXAQI NOW
    NO2 0 ppb 0 ppb
    O3 30 ppb 30 ppb
    PM10 17 ug/m3 12 ug/m3
    PM2.5 9 ug/m3 6 ug/m3
    The Quinns Rocks A.Q.M.S. AQI at 1000 hrs is GOOD
    Nth Rockingham A.Q.M.S.AQI MAXAQI NOW
    NO2 12 ppb 0 ppb
    O3 30 ppb 30 ppb
    SO2 5 ppb 3 ppb
    The Nth Rockingham A.Q.M.S. AQI at 1000 hrs is GOOD
    Rolling Green A.Q.M.S.AQI MAXAQI NOW
    NO2 0 ppb 0 ppb
    O3 29 ppb 29 ppb
    The Rolling Green A.Q.M.S. AQI at 1000 hrs is GOOD
    South Lake A.Q.M.S.AQI MAXAQI NOW
    CO 0 ppm 0 ppm
    NO2 3 ppb 0 ppb
    O3 26 ppb 26 ppb
    SO2 1 ppb 1 ppb
    PM10 6 ug/m3 5 ug/m3
    PM2.5 3 ug/m3 1 ug/m3
    The South Lake A.Q.M.S. AQI at 1000 hrs is GOOD
    Swanbourne A.Q.M.S.AQI MAXAQI NOW
    NO2 0 ppb 0 ppb
    O3 29 ppb 29 ppb
    The Swanbourne A.Q.M.S. AQI at 1000 hrs is GOOD
    Wattleup A.Q.M.S.AQI MAXAQI NOW
    SO2 2 ppb 1 ppb
    The Wattleup A.Q.M.S. AQI at 1000 hrs is GOOD
    Mandurah A.Q.M.S.AQI MAXAQI NOW
    CO 0 ppm 0 ppm
    NO2 0 ppb 0 ppb
    O3 27 ppb 27 ppb
    PM10 34 ug/m3 34 ug/m3
    PM2.5 8 ug/m3 8 ug/m3
    The Mandurah A.Q.M.S. AQI at 1000 hrs is GOOD
    Note: Mandurah is located on the coast and is influenced by marine aerosols (sea salt) during strong westerly winds.
    Bunbury A.Q.M.S.AQI MAXAQI NOW
    PM10 7 ug/m3 4 ug/m3
    PM2.5 3 ug/m3 2 ug/m3
    The Bunbury A.Q.M.S. AQI at 1000 hrs is GOOD
    Busselton A.Q.M.S.AQI MAXAQI NOW
    PM10 5 ug/m3 1 ug/m3
    PM2.5 5 ug/m3 1 ug/m3
    The Busselton A.Q.M.S. AQI at 1000 hrs is GOOD
    Collie Particles A.Q.M.S.AQI MAXAQI NOW
    PM10 10 ug/m3 1 ug/m3
    PM2.5 10 ug/m3 0 ug/m3
    The Collie Particles A.Q.M.S. AQI at 1000 hrs is GOOD
    Albany Particles A.Q.M.S.AQI MAXAQI NOW
    PM10 6 ug/m3 6 ug/m3
    The Albany Particles A.Q.M.S. AQI at 1000 hrs is GOOD
    Geraldton Particles A.Q.M.S.AQI MAXAQI NOW
    PM10 20 ug/m3 16 ug/m3
    PM2.5 5 ug/m3 4 ug/m3
    The Geraldton Particles A.Q.M.S. AQI at 1000 hrs is GOOD
    Kalgoorlie A.Q.M.S.AQI MAXAQI NOW
    SO2 0 ppb 0 ppb
    PM10 7 ug/m3 1 ug/m3
    PM2.5 3 ug/m3 0 ug/m3
    The Kalgoorlie A.Q.M.S. AQI at 1000 hrs is GOOD


    The following health directions apply to fine particles (PM2.5) only and have been endorsed by the Western Australian Department of Health for use during periods where the PM2.5 concentrations are elevated.
    Please follow directions from emergency services and advice from your doctor at all times.
    Please ignore any messages written below in red should they contradict any COVID-19 related advice.
    Fine Particles (ug/m3)
    Sensitive groups

    includes

    • people with a heart or lung condition, including asthma
    • people over the age of 65
    • infants and children
    • pregnant women
    Everyone else
    GOOD
    PM2.5 from 0 to 25 ug/m3

    No change needed to your normal outdoor activities


    No change needed to your normal outdoor activities

    FAIR
    PM2.5 from 25 to 50 ug/m3
    Reduce outdoor physical activity if you develop symptoms like cough or shortness of breath.

    Follow the treatment plan recommended by your doctor.

    If you are concerned about symptoms call healthdirect (1800 022 222) or see your doctor.

    If you or anyone in your care has trouble breathing or tightness in the chest, call 000 for an ambulance.

    No change needed to your normal outdoor activities.
    POOR
    PM2.5 from 50 to 100 ug/m3
    Avoid outdoor physical activity if you develop symptoms like cough or shortness of breath.

    When indoors, close windows and doors until outdoor air quality is better.

    Follow the treatment plan recommended by your doctor.

    If you are concerned about symptoms call healthdirect (1800 022 222) or see your doctor.

    If you or anyone in your care has trouble breathing or tightness in the chest, call 000 for an ambulance.

    Reduce outdoor physical activity if you develop symptoms like cough or shortness of breath.
    VERY POOR
    PM2.5 from 100 to 300 ug/m3
    Stay indoors as much as possible with windows and doors closed until outdoor air quality is better.

    If you feel that the air in your home is uncomfortable, consider going to a place with cleaner air (such as an air-conditioned building like a library or shopping centre) if it is safe to do so.

    Actively monitor symptoms and follow any treatment plan recommended by your doctor.

    If you are concerned about symptoms call healthdirect (1800 022 222) or see your doctor.

    If you or anyone in your care has trouble breathing or tightness in the chest, call 000 for an ambulance.

    Avoid outdoor physical activity if you develop symptoms like cough or shortness of breath.

    When indoors, close windows and doors until outdoor air quality is better.

    If you are concerned about symptoms call healthdirect (1800 022 222) or see your doctor.

    If you or anyone in your care has trouble breathing or tightness in the chest, call 000 for an ambulance.

    EXTREMELY POOR
    PM2.5 greater than 300 ug/m3
    Stay indoors as much as possible with windows and doors closed until outdoor air quality is better.

    If you feel that the air in your home is uncomfortable, consider going to a place with cleaner air (such as an air-conditioned building like a library or shopping centre) if it is safe to do so.

    Actively monitor symptoms and follow any treatment plan recommended by your doctor.

    If you are concerned about symptoms call healthdirect (1800 022 222) or see your doctor.

    If you or anyone in your care has trouble breathing or tightness in the chest, call 000 for an ambulance.

    Stay indoors as much as possible with windows and doors closed until outdoor air quality is better.

    If you feel that the air in your home is uncomfortable, consider going to a place with cleaner air (such as an air-conditioned building like a library or shopping centre) if it is safe to do so.

    If you are concerned about symptoms call healthdirect (1800 022 222) or see your doctor.

    If you or anyone in your care has trouble breathing or tightness in the chest, call 000 for an ambulance.

    AQI colour codes based on the following pollutant concentrations

    PollutantGOODFAIRPOORVERY POOREXTREMELY POOR
    CO (ppm) 0 to 6 6 to 9 9 to 13.5 13.5 to 18 over 18
    NO2 (ppb) 0 to 80 80 to 120 120 to 180 180 to 240 over 240
    O3 (ppb) 0 to 67 67 to 100 100 to 150 150 to 200 over 200
    SO2 (ppb) 0 to 133 133 to 200 200 to 300 300 to 400 over 400
    PM10 (ug/m3) 0 to 50 50 to 100 100 to 200 200 to 600 over 600
    PM2.5 (ug/m3) 0 to 25 25 to 50 50 to 100 100 to 300 over 300