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Photochemical Smog: air pollution that reduces visibility - Coggle…
Photochemical Smog:
air pollution that reduces visibility
harmful effects of smog
(ground-level ozone) on living organism
unhealthy to human and animals
effects on human
cause itchy & burning eyes
damage lung tissues
especially dangerous to people with respiratory illnesses like asthma
effects on plants
kill the plants
cause of smog
reaction of pollutants with the sun
When sunlight hits these chemicals, they form airborne participles and ground level ozone, which is smog.
these chemicals come from car exhaust, factory emissions, coal power plants, gasoline, paints, cleaning solvents.
Therefore, smog is common in places which are near industrial areas / in big cities with a lot of industry and traffic as these are where chemicals are commonly found
pollutants: nitrogen oxides, VOCs, nitrogen oxides and solvents
ways to reduce smog
government
set up laws
restrict discharge of chemicals of factories
personal
drive less
-use public transport whenever possible
-walk, bike, carpool
fuel up cars during cooler hours of the day
avoid products that release high levels of VOCs
Avoid using gas-powered yard equipment
-use electrical appliances instead
community
Set up "burn days”
-the time when residents can burn waste in their yard
factors increasing the occurrence of smog
environment factors
cities with industries and traffic may have smog problems
Why?
chemicals that cause smog are commonly found
geographical factors
cities located in basins surrounded by mountains
Why?
smog is trapped in the valley and cannot be carried away by wind
E.G.
Los Angela’s, California, United States, Mexico City, Mexico