Brae 348 Final Questions and Answers
Main components of air? ** Answ** Nitrogen 78%, Oxygen 21%
Argon .9%, Carbon Dioxide .03%
Define Air Pollutants ** Answ** Those substances added by humans that are toxic or irritant
to animals, vegetation, or property.
NOAA ** Answ** National Oceanic & atmospheric administration
-global monitoring division
-C02 is steadily increasing since start of industrial revolution
Atmospheric pressure ** Answ** 14.7 PSI
bouyant force ** Answ** upward force exerted on an object by the fund in which it is
immersed
archimedes principle ** Answ** the bouyant force on an object is equal to the weight of the
fuild displaced by that object
Air Pollutants and Their Sources:
Gases ** Answ** Carbon monoxide, nitrogen oxides, sulfer oxides, and hyrocarbons
-transportation,
Air Pollutants and Their Sources:
Particulates ** Answ** small particles of solids (<PM10)
- solid wastes, industrial process
Air Pollutants and Their Sources:
Aerosols ** Answ** small liquid droplets
,-
what is the total of all pollutants ** Answ** over 135 million tons/ year
or 2.8 lb/person/day
EPA ** Answ** US Environmental Protection Agency monitors 5 principle pollutants
US Environmental Protection Agency monitors 5 principle pollutants: ** Answ** -carbon
monoxide
-sulfer oxide
-perticulates
-VOCs
-Nitrogen Oxides
Air Pollutants and Their Sources:
Anthropogenic sources ** Answ** power production, industrial processes, exhausts of cars
Air Pollutants and Their Sources:
Natrual sources ** Answ** Volcanos, biological decay, forest fires and ocean spray (or dust
storm)
Natural sources vs anthropogenic ** Answ** natural sources on a worldwide basis are a
greater contributor, but in industrialized areas usually pollution is driven by anthropogenic
sources.
Air Pollutants and Their Sources:
Carbon Monoxide ** Answ** -colorless, odorless gass, mostly from auto engines incomplete
combustion
-standard is 9ppm
-heavy traffic is 50-100ppm
, Air Pollutants and Their Sources:
Sulfur Oxides ** Answ** SO2 and SO3, produced from burning fossil fuels and oxidation of
sulfur, mostly from coal (6% suffer)
- >3ppm is toxic
-may also form acid rain
Air Pollutants and Their Sources:
Particulates ** Answ** .01 t 10 microns in diameter.
-called aerosols because they are solid or liquid material suspended in air.
particulates larger than 1 micron ** Answ** dust and other natural sources
particulates less than 1 micron ** Answ** from combustion process
TSP ** Answ** total suspended particles
-14 million emitted over US
-2 million from smelters and power plants
Air Pollutants and Their Sources:
Hydrocarbons or VOCs ** Answ** come from gasoline evaporation, industrial solvents,
trash incineration, emissions from decaying vegetation
-led to vapor recovery systems at gas stations
Hydrocarbons ** Answ** -Natural Sources account for as much as 85% of hydrocarbons in
air
-more reactive HC come from human activity
-can lead to the formation of ozone and smog
Air Pollutants and Their Sources:
Nitrogen oxides, photochemical smog, and ozone ** Answ** Various NOx (N2O, NO2,
N2O5)
Main components of air? ** Answ** Nitrogen 78%, Oxygen 21%
Argon .9%, Carbon Dioxide .03%
Define Air Pollutants ** Answ** Those substances added by humans that are toxic or irritant
to animals, vegetation, or property.
NOAA ** Answ** National Oceanic & atmospheric administration
-global monitoring division
-C02 is steadily increasing since start of industrial revolution
Atmospheric pressure ** Answ** 14.7 PSI
bouyant force ** Answ** upward force exerted on an object by the fund in which it is
immersed
archimedes principle ** Answ** the bouyant force on an object is equal to the weight of the
fuild displaced by that object
Air Pollutants and Their Sources:
Gases ** Answ** Carbon monoxide, nitrogen oxides, sulfer oxides, and hyrocarbons
-transportation,
Air Pollutants and Their Sources:
Particulates ** Answ** small particles of solids (<PM10)
- solid wastes, industrial process
Air Pollutants and Their Sources:
Aerosols ** Answ** small liquid droplets
,-
what is the total of all pollutants ** Answ** over 135 million tons/ year
or 2.8 lb/person/day
EPA ** Answ** US Environmental Protection Agency monitors 5 principle pollutants
US Environmental Protection Agency monitors 5 principle pollutants: ** Answ** -carbon
monoxide
-sulfer oxide
-perticulates
-VOCs
-Nitrogen Oxides
Air Pollutants and Their Sources:
Anthropogenic sources ** Answ** power production, industrial processes, exhausts of cars
Air Pollutants and Their Sources:
Natrual sources ** Answ** Volcanos, biological decay, forest fires and ocean spray (or dust
storm)
Natural sources vs anthropogenic ** Answ** natural sources on a worldwide basis are a
greater contributor, but in industrialized areas usually pollution is driven by anthropogenic
sources.
Air Pollutants and Their Sources:
Carbon Monoxide ** Answ** -colorless, odorless gass, mostly from auto engines incomplete
combustion
-standard is 9ppm
-heavy traffic is 50-100ppm
, Air Pollutants and Their Sources:
Sulfur Oxides ** Answ** SO2 and SO3, produced from burning fossil fuels and oxidation of
sulfur, mostly from coal (6% suffer)
- >3ppm is toxic
-may also form acid rain
Air Pollutants and Their Sources:
Particulates ** Answ** .01 t 10 microns in diameter.
-called aerosols because they are solid or liquid material suspended in air.
particulates larger than 1 micron ** Answ** dust and other natural sources
particulates less than 1 micron ** Answ** from combustion process
TSP ** Answ** total suspended particles
-14 million emitted over US
-2 million from smelters and power plants
Air Pollutants and Their Sources:
Hydrocarbons or VOCs ** Answ** come from gasoline evaporation, industrial solvents,
trash incineration, emissions from decaying vegetation
-led to vapor recovery systems at gas stations
Hydrocarbons ** Answ** -Natural Sources account for as much as 85% of hydrocarbons in
air
-more reactive HC come from human activity
-can lead to the formation of ozone and smog
Air Pollutants and Their Sources:
Nitrogen oxides, photochemical smog, and ozone ** Answ** Various NOx (N2O, NO2,
N2O5)
