EPA is attending a factory fire at 27 Barry Street, Campbellfield and has deployed two mobile air monitoring units to the north and south of the blaze.
Officers are providing advice, including about possible firewater runoff impacts, to support the incident controller, which is MFB.
The latest updates are available at: http://emergency.vic.gov.au/respond/#!/warning/4976/moreinfo
Those concerned about smoke should visit: https://www.epa.vic.gov.au/your-environment/air/smoke