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Cornell style notes Lecture 2

3 Pages
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Department
Environmental Science
Course Code
EESA10H3
Professor
Jovan Stefanovic

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Human Health and The Environment Mid-Term Study Notes
Lecture 2
Key pointNotes
Airborne hazardsOutdoor and indoor pollution
Outdoor pollution Human-sources-stationary (e.g. industry plants)
Natural sources (e.g. volcanic ash)
Human sources-mobile (e.g. automobiles)
Outdoor health
effectsEffect is dependant on dose or concentration
Non-severe symptoms: eye irritation, respiratory
irritation, flu
More severe: birth defects, toxic poisoning
Seven common
outdoor air
pollutants
1.particulate matter
2. carbon monoxide
3.nitrogen oxides
4.sulphur oxides
5.VOC- volatile organic compounds
6.Lead
7.Ozone
Particulate matterSolid or liquid and is found in the air
It occasionally forms in the air (i.e. sulphuric
acid)
Particles are big or small PM10 or PM2.5
enters lungs easily.
Formed by vehicles, factories, contruction sites,
etc.
Carbon Monoxide Odourless and colourless gas
Formed due to incomplete burning
This is present everywhere, but it is lethal when
concentrated (e.g. in garages)
Often confused with flu or food poisoning.
Interferes with oxygen circulation
Children and elderly are more at risk
Nitrogen OxidesForms in any combustion process
Forms nitrates, acid aerosols, and acid rain
Not completely soluble in water, thus damaging
lungs
Can travel far distances
Sulphur OxidesVery soluble in water, and reacts easily to form
acids
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Description
Human Health and The Environment Mid-Term Study Notes Lecture 2 Key point Notes Airborne hazards Outdoor and indoor pollution Outdoor pollution Human-sources-stationary (e.g. industry plants) Natural sources (e.g. volcanic ash) Human sources-mobile (e.g. automobiles) Outdoor health Effect is dependant on dose or concentration effects Non-severe symptoms: eye irritation, respiratory irritation, flu More severe: birth defects, toxic poisoning Seven common 1.particulate matter outdoor air 2. carbon monoxide pollutants 3.nitrogen oxides 4.sulphur oxides 5.VOC- volatile organic compounds 6.Lead 7.Ozone Particulate matter Solid or liquid and is found in the air It occasionally forms in the air (i.e. sulphuric acid)
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