The best replacement for hazards is risks.

The best alternatives to hazards are rated as following:
★★★★★  risks
★★  perils
★★  disasters
★  natural disasters
★  turn signals
★  accidents
★  health hazards
  natural hazards
  technological hazards
  threats

Your alternative for hazards is not listed? Suggest!
Speaking about hazards, one probably shouldn't forget about chemicals.

Other search terms related to hazards and their ratings are:
★★★★★ chemicals
You have in mind a companion for hazards and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of hazards in all years. Click on graph for more.
hazards
risks
perils