Content.phpHazard alert – carbon monoxide Content.phpHazard alert – fire demolition and asbestos exposure Content.phpHazard alert – safe use of drain cleaning products Content.phpHazard alert – working on energized electrical equipment Content.phpHazard alert – improper machine safeguarding and lockout Content.phpHazard alert – collapse of excavations, trenches, tunnels and shafts Content.phpHazard alert – collapse of temporary structures and scaffolds