7.4: Atmospheric CO2 And Particulates

Question 1

What do we get from lightning?

Answer 1

The conversion of Nitrogen Dioxide in atm. to NOx

Question 2

What do we get from forest fires?

Answer 2

Carbon monoxide, particulate matter, NOx. Combustion of biomass also releases carbon dioxide and water vapor which are greenhouse gases

Question 3

What do we get from plants (esp. conifers)?

Answer 3

Plants emit VOCs (terpenes and ethylene from Pine, Fir, Spruce, Oak which forms photochemical smog in Smoky Mountains)

Question 4

What do we get from volcanoes?

Answer 4

Sulfur Dioxide, particulate matter, carbon monoxide, NOx

Question 5

Respiration

Answer 5

Living things release carbon dioxide through respiration

Question 6

Sources of PM

Answer 6

Sea salt, pollen, ash from forest fires, volcano dust

Question 7

Aerobic Decomposition

Answer 7

Releases CO2

Question 8

Anaerobic Decomp

Answer 8

Releases methane

Question 9

PM10 examples

Answer 9

Dust, pollen, ash, mold

Question 10

PM2.5

Answer 10

Increased risk of lung cancer and chronic bronchitis