What is the Clean Air Interstate Rule?

What is the Clean Air Interstate Rule?

The Clean Air Interstate Rule (CAIR) was designed to ad- dress interstate transport of ozone and fine particulate matter (PM2. 5) pollution. To do so, CAIR required certain states to limit annual emissions of nitrogen oxides (NOx) and sulfur dioxide (SO2), which contribute to the forma- tion of ozone and PM2.

What state has the cleanest air breathing?

States with the Best Air Quality

  • Hawaii. Hawaii has an air quality index of 21.2, the cleanest average air in the U.S. This is well in the good air quality index range.
  • Alaska.
  • Washington.
  • Oregon.
  • Maine.
  • Utah.
  • Ohio.
  • Georgia.

Does federal government regulate intrastate air pollution?

The Clean Air Act’s “good neighbor” provision requires EPA and states to address interstate transport of air pollution that affects downwind states’ ability to attain and maintain National Ambient Air Quality Standards (NAAQS).

What is interstate pollution?

Interstate air pollution transport refers to pollution from upwind emission sources that impact the air quality in a different state downwind. Emissions of sulfur dioxide (SO2) and nitrogen oxides (NOX) from upwind sources can undergo chemical reactions in the atmosphere to form fine particle (soot) pollution.

Did the Clean Air Act improve air quality?

Experience with the Clean Air Act since 1970 has shown that protecting public health and building the economy can go hand in hand. Clean Air Act programs have lowered levels of six common pollutants — particles, ozone, lead, carbon monoxide, nitrogen dioxide and sulfur dioxide — as well as numerous toxic pollutants.

Is the Clean Air Act still enforced?

Thus, while authorization of appropriations in the Clean Air Act (and most other environmental statutes) has expired, programs have continued and have been funded. The act’s other legal authorities, to issue and enforce regulations, are, for the most part, permanent and are not affected by the lack of authorization.

Where is the cleanest air in the world 2021?

New Caledonia
Which is the cleanest country in the world?

# country 2021 AVG. US AQI
1 New Caledonia 16
2 U.S. Virgin Islands 19
3 Puerto Rico 20
4 Cape Verde 21