Hazardous material release Emergency management

classification of hazardous material releases associated natural disasters.

below tlv-twa, pel, , idlh values common chemicals workers exposed after natural disaster.

direct release

magnesium

phosphorus

ammonia

silica

intentional release

insecticides

chlorine dioxide

unintentional release

crude oil components…

benzene, n-hexane, hydrogen sulfide, cumene, ethylbenzene, naphthalene, toluene, xylenes, pcbs agrochemicals

asbestos

exposure routes

when toxicant prominent in environment after natural disaster, important determine route of exposure worker safety disaster management workers. 3 components source of exposure, pathway of chemical, , receptor. questions ask when dealing chemical source material itself, how it’s used, how used, how chemical used, temperature, vapor pressure, physical processes. physical state of chemical important identify. if working indoors, room ventilation, , volume of room needs noted mitigate health defects chemical. lastly, ensure worker safety, routes of entry chemical should determined relevant personal protective equipment needs worn.

respirators

according cdc “if need collect belongings or basic clean in flooded home, not need use respirator (a mask worn prevent breathing in harmful substances).” respirator should worn when performing operation in enclosed environment such house creates ample amounts of dust. these activities include sweeping dust, using power saws , equipment, or cleaning mold. if encounter dust, cdc says “limit contact dust as possible. use wet mops or vacuums hepa filters instead of dry sweeping , lastly wear respirator protects against dust in air. respirator approved cdc/niosh n95 respirator , can personal protective equipment protect dust , mold in air associated natural disaster.