What did Chattanooga do to address their pollution problem?
Created its own air pollution legislation by enacting the Air Pollution Control Ordinance
Controlled the emissions of sulfur oxides
Allowed open burning by anyone
Placed regulations on odors and dust
Outlawed visible automobile emissions
Capped the sulfur content of fuel at four percent
Limited visible emissions from industry
❌ is defined as the introduction of ❌, particulate matter or microorganisms into the atmosphere at concentrations high enough to harm plants, ❌, and ❌s such as buildings, or to alter ❌
Air pollution can occur naturally or anthropogenically
Which of the following is a natural cause of air pollution?
Volcanoes
Factories
Automobiles
Airplanes
Which of the following is an example of anthropogenic air pollution?
Fires
Hurricanes
In general, the air is much cleaner much dirtier the same( much cleaner, much dirtier, the same ) than it was 40 years ago.
Recently, which of the following have had the worst outdoor air quality issue?
Developing countries in Asia
Africa
High-income areas in South Africa
Industrializing Russia
Which of the following have indoor air pollution as a human health issue?
Asia
South America
Denmark
Poland
Australia
Indonesia
Even though air pollution has been with us for millenia, both the definition of pollution and the classification of a subtance as a pollutant are still in transition.
The science of air pollution is closely intertwined with
legislation and social perspectives
public policy
the fields of chemistry and biology
the presidential elections
The US Clean Air Act was enacted in
The US Clean Air Act identified pollutants that significantly threaten human well-being, ecosystems and/or structures
The six pollutants identified by the Clean Air Act of 1970 included
sulfur dioxide
nitrogen oxides
carbon monoxide
particulate matter
tropospheric ozone
lead
mercury
radon
atrazine
sulfur dioxins
Although not stated in the Clean Air Act, volatile organic compounds and sulfur dioxins are commonly measured air pollutants that have the potential to be harmful
Sulfur dioxide is a corrosive volitile flammable smelly( corrosive, volitile, flammable, smelly ) gas that comes primarily from combustion of fuels such as coal and oil. natural gas and oil. oil and tar sands. coal and peat.( coal and oil., natural gas and oil., oil and tar sands., coal and peat. )
Sulfur dioxide is released by
volcanic eruptions
forest fires
combustion of fuels
UV radiation
The atmosphere is __ percent nitrogen gas.
78
81
43
72
Gasoline-powered vehicles give off more particulate matter, in the form of black smoke, than diesel-powered vehicles.
Particulate matter ranges in size from 0.01 1 0.1 0.001( 0.01, 1, 0.1, 0.001 ) micrometers to 100 1000 10.1 100.001( 100, 1000, 10.1, 100.001 ) micrometers
Particulate matter larger than micrometers is usually filtered out by the noise and throat and is not regulated by the EPA.
blank are of concern to air pollution scientists because they are not filtered out by the nose and throat and can be deposited deep inside the respiratory tract.
PM10
Particulate matters or particles
PM25
Particulate matters under 12 micrometers
The most harmful particles are
PM 2.5
PM 10
All particles
PM 5