Gabby Hahka Chapter 12 review- air
2 ways we can improve indoor air quality?
-identifying and removing ventilation - mixing outdoor air and indoor air
list 5 primary pollutants??
1.) carbon monoxide 2.) nitrogen oxides 3.) sulfur dioxide 3.) violate organic compounds 4.) particulate 5.) matte
describe the 2 pollution-controll devices that the clean air act requires industries to us?
1.) elimination of lead 2.)elimination of catalytic converters
what agreement was signed between the united states and Canada? why was this agreement necessary?
Canada- US air quality agreement they needed to reduce acidic emissions
describe the effects of the breathing in asbestos fibers?
any of 6 silicate minerals that form bundles minute fibers
Sick-building syndrome
buildings with low air quality due to indoor air pollution
describe sick-building syndrome
buildings with poor air quality and are tightly sealed
briefly describe how a catalytic converter works?
cleans exhaust gasses of pollutants
3 long effects of air pollution
emphysema, heart disease, and lung cancer
What is the clean air act?
gives the EPA the authority to regulate vehicle emissions in the U.S
Primary pollutant
harmful substances that build up in the air to unhealthy levels
4 short term health effects because of air pollution
headache, nausea, tightness in chest, coughing
where does air pollution come from?
human actives
describe acidification and its effects
increases the concentration of acid
what is radon gas? why is the dangerous?
it is a colorless, oderless gass. it can enter peoples peoples lungs
Asbestos
long, thin fibers made of minerals that are strong and heat resistant
what health problems can be caused by noise pollution
loss of hearing, high blood pressure, stress
pH
measures how acidic or basic a substance is
smog
mixture of fog ans smoke produced from industrial pollutants and burning fuels
secondary pollutant
pollutant formed when primary pollutants react with other primary pollutants
air pollution
pollutant put directly into the air by human actives
how do communities attempt to counteract the effects of acid rain?
powdered limestone can be sprayed on acidified lakes
Acid precipitation
precipitation that contains a high concentration of acids
describe the night sky in rural setting versus in the city?
rural- you can see the stars because there isn't that much light pollution city- you can only see the street lights because their was so much light pollution
Radon
second leading cause to lung cancer in the U.S.
what ways can we reduce light pollution?
shielding light, time centroils, use ow pressure sodium sources
what is smog and how is it formed??
smog is a mixture of smoke and fog, it is formed by industrial pollutants etc.
acid shock
sudden runoff of large amounts of highly acidic water into lakes and streams when snow melts in the spring or when heavy rain follows a drought
explain why the circulation of the atmosphere keeps air pollution from reaching dangerous levels??
the warm air rises, though cooler air above it, carries pollutants away from the ground, into the atmosphere
describe the events that happened to the death of 20 people in Donora, PA in 1948?
there were zinc factories arcoss the river and the air pollution got so bad that the air turned a yellow musty color. this ended with 20 people dead because they keeped breathing in the bad ait
Decibel (dB)
unit used to measure intensity of sound
Temperature inversion
when warm air traps cooler air near earths surface
what is ZEV?
zero-emission vehicle
