Sydney’s lingering bushfire smoke has triggered indoor office smoke alarms, impacting inner-city workers as air quality plunges to hazardous levels.

Workers across the city report their fire-detection systems are now reacting to the haze, with several saying they have been forced to temporarily disable their alarms.

False alarms have also impacted classes at the University of New South Wales’ Kensington campus.

Fire alarms at train stations have also been impacted, with social media footage showing a false fire alert at Wynyard Station.

Transport NSW has advised commuters the issue could impact stations throughout the day, and could potentially interfere with Opal card gates across the network.

Sydney Ferries have also been suspended due to poor visibility. Replacement buses are slated to run this afternoon as the haze persists.

The NSW Department of Planning, Industry, and Environment states visibility in Macquarie Park, Parramatta North, and Prospect is currently ten times above ‘Hazardous’ ratings.

Similarly, the entire metro region is now reporting ‘Hazardous’ levels of airborne particles, with authorities warning residents to avoid prolonged exposure.

via NSW Department of Planning, Industry, and Environment

The smoke, blown in from severe bushfires to the city’s west, has impacted the city for weeks.

Speaking to PEDESTRIAN.TV last week, the Bureau of Meteorology said “grim” fire conditions were expected for the remainder of summer.

More to come.

Image: @MunsterPete / Twitter