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Transcript of Chemistry
- Often, but not always occur with an explosion
-Usually occur in plants that deal with Petro-chemicals
Toxic Chemicals and Atmospheric Contaminants Produced by Domestic and Industrial Fires
Main goal is to contain and eliminate the fire by means of :
Water sprinkler system
Only one of the 3 elements need to be controlled
Most common fuel for a flame is dust
A combination of hazardous detection systems help ensure maximum prevention
Creates jobs! Someone has to fight that fire?
Created a field in engineering devoted to prevention ( Fire Protection Engineering)
More conscious of materials used in construction
The pollutants can turn neighborhoods into ghost towns
Helps us realize the environmental impacts at a first degree
Histories largest tire fire (1990)
Burned for 17 days
CTS (Province) : 10 Million in damages
Burning tires are the most Toxic material
The Hagersville tire fire
By: Conal and Matt
What is it?
what does these pictures mean to you?
- Since the industrial revolution, CO2 levels have increased by 25%
- Between 1850 and 1980 between 90 and 120 billion metric tons of CO2 have been released into the atmosphere by forest fires
- Burning of tropical forests contributes to 2.4 giga tons of carbon/year
What if its too late?
Severe industrial fires have involved multiple injuries, loss of life
- Smoke from fires can irritate eyes, airways and even cause chest pains
- Inhaling toxic chemicals released by fires can cause effects such as cancer, deformities, and ARS (acute radiation syndrome)
put the company at a financial loss
possible law suits
1917 - Halifax ship loaded with 9000 tons of high explosives (Halifax Explosion)
1979 - Partial nuclear meltdown in the US. 13 million curies of radioactive gas released
1986 - Nuclear power plant in Chernobyl (Ukraine) explodes. Fallout seen from Canada.
1988 - Military storage plant in Pakistan exploded killing 1,300
But why Tires?
Composed of rubber and petroleum
Releases oily sludge
Releases thick black smoke that attack the lungs
Releases sulfur dioxide into atmosphere
Negligence (cooking, faulty heating etc.)
Freak barbeque accidents
General Word Equation:
Toxic item+ Fire (O2) = Toxic air pollutants + CO2 + CO +C + H20
Proud to support. (n.d.). MDM Publishing Ltd. Retrieved April 6, 2014, from http://www.mdmpublishing.com/mdmmagazines/magazineiff/newsview/1285/atmospheric-monitoring-study-reveals-dangerous-levels-of-cyanide-in-fire-smoke
Global Fire Monitoring : Feature Articles. (n.d.). Global Fire Monitoring : Feature Articles. Retrieved April 6, 2014, from http://earthobservatory.nasa.gov/Features/
Fire produces flame, heat, oxygen depletion, smoke, and toxic gases
Toxic Air Pollutants
H2O(l) + SO2(g) ==> H2SO3(g)
When sulfur mixes with water in gasous form in the clouds
Damages trees, soil , buildings etc.
kills humans! ...(slowly)
We know what happens when we burn hydrocarbons but what about other materials ?
Toxic- Poisonous substance
Well known nuclear power plant disaster that released radioactive particles into the atmosphere and made surrounding areas inhabitable
"CBC Digital Archives - Pollution General - 1990: The Hagersville tire fire." CBCnews. CBC/Radio Canada, 5 Feb. 2014. Web. 6 Apr. 2014. <http://www.cbc.ca/archives/categories/environment/pollution/general-14/the-hagersville-tire-fire.html>.
"Chemical formula." for acid rain. N.p., n.d. Web. 6 Apr. 2014. <http://www.chemicalformula.org/acid-rain>.
"Chernobyl disaster." Wikipedia. Wikimedia Foundation, 4 May 2014. Web. 5 Apr. 2014. <http://en.wikipedia.org/wiki/Chernobyl_disaster>.
"Effects of Acid Rain - Human Health." EPA. Environmental Protection Agency, n.d. Web. 6 Apr. 2014. <http://www.epa.gov/acidrain/effects/health.html>.
"Fire Prevention and Fire Protection." industrialfireprevention. N.p., n.d. Web. 6 Apr. 2014. <http://www.industrialfireprevention.com/Fire_Protection.html>.
Cooking 56 %
Heating 16 %
Electrical Malfunction 9 %
Other Unintentional, Careless 8 %
Open Flame 6 %
Intentional 5 %