2.60 Pollution, disasters and safetyDangerous materials Asbestos hazardsHarmful substancesHazardous materialsHazardous substancesLabelling (hazardous substances)Toxic substancesVolatile substancesDisaster relief Emergency reliefDisasters (by type) DisastersEmergencies (events) Emergency services Environmental degradation Environmental changesEnvironmental deteriorationPollutants ContaminantsIndustrial chemicals and pollutantsRescue work Safety Safety engineering