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Lecture

Week # 2 Airborne Hazards

7 Pages
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Department
Environmental Science
Course Code
EESA10H3
Professor
Jovan Stefanovic

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JANUARY 19TH 2011
FAWAD HAJI
HEALTH & ENVIRONMENT
LECTURE NOTES # 2
AIRBORNE HAZARDS & HUMAN HEALTH
-Air pollution
Case study 1:- London smog, 1952
the smog was the result of coal burning
no wind to remove gases
sulphuric acid caused the death
about 4000 people died within 6 days due to smog
Case study # 2 :- Indonesian fires 1997
forest areas been burned to used land for agriculture
not huge impact to air however
during 1997 mosoons were late and due to that the fire increased in a
huge area.
It produced various amounts of gases ( clouds of hazardous gases)
Air borne hazards:- ( outdoor & indoor air pollution)
Outdoor Air pollution:-
www.notesolution.com
JANUARY 19TH 2011
FAWAD HAJI
Primary air pollutants such as CO, CO2, NO, S02, NO2. Result into
secondary air pollutants
Health effects of this are (primary effects):these effects depend on the dose
or concentration
Seven common outdoor air pollutants:
1)Particles found in the air such as dust, smoke, soot
2)Could be big and small
3)Small particles are more deadly
4)Some particles are formed in the air such as sulphuric acid( liquids)
CARBON MONOXIDE:
1)Odourless, colorless gas
2)They cause more harm indoor than outdoor because of its concentration
3)Example:- it causes disorientation and therefore the person cannot
function anymore.
4)It has some mild symptoms and some severe symptoms....due to lack of
oxygen
NITROGEN OXIDES (NOx)
5)Form in any type of combustion process
6)Less soluble in water
SULPHUR OXIDES (SOx)
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Description
TH JANUARY 19 2011 FAWAD HAJI HEALTH & ENVIRONMENT LECTURE NOTES # 2 AIRBORNE HAZARDS & HUMAN HEALTH - Air pollution Case study 1:- London smog, 1952 the smog was the result of coal burning no wind to remove gases sulphuric acid caused the death about 4000 people died within 6 days due to smog Case study # 2 :- Indonesian fires 1997 forest areas been burned to used land for agriculture not huge impact to air however during 1997 mosoons were late and due to that the fire increased in a huge area. It produced various amounts of gases ( clouds of hazardous gases) Air borne hazards:- ( outdoor & indoor air pollution) Outdoor Air pollution:- www.notesolution.com
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