Air quality and human mortality Flashcards
1
Q
what classes as air pollution
A
particulate matter, gaseous or volatile organic compounds
2
Q
how many deaths globally are caused by indoor poor air quality
A
1/8 deaths
2million a year
- carbon monoxide
- primary victims are women and children due to time spent in kitchen
3
Q
is ozone good or bad
A
stratospheric = good tropospheric = bad
4
Q
about ozone
A
GHG, potent poison, absorbs UV
5
Q
when is ozone formed
A
when pollutants emitted by cars, powerplants, industrial boilers, refineries, chemical plants and other sources chemically react in presence of sunlight
- NO2 reacts with sunlight to form NO and O. oxygen collides with O to form O3 - so when sun goes down it stops
- cyclic reaction. nothing destroyed just converted back and forth
6
Q
major sink for NO2?
A
atmospheric oxidation
7
Q
effects of ozone/smog on health
A
cilia broken down/dissolve so breathe in particulate matter and get holes in lungs - dangerous to go on runs in cities
effects plants too
