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The United States Environmental Protection Agency (EPA) began regulating greenhouse gases (GHGs) under the Clean Air Act ("CAA" or "Act") from mobile and stationary sources of air pollution for the first time on January 2, 2011. Standards for mobile sources have been established pursuant to Section 202 of the CAA, and GHGs from stationary ...
Since the EPA first started regulating clean air in the 1970s, emissions of the most common air pollutants have dropped by almost 80%. But around Houston, there's still a long way to go.
Light Pollution in the United States is not federally regulated. The Environmental Protection Agency (EPA), in charge of most environmental regulations, does not manage light pollution. [31] 18 states and one territory have implemented laws that regulate light pollution to some extent.
The air quality in Malaysia is reported as the Air Pollution Index (API). Four of the index's pollutant components (i.e., carbon monoxide, ozone, nitrogen dioxide and sulfur dioxide) are reported in ppmv but PM 10 particulate matter is reported in μg/m 3. This scale below shows the health classifications used by the Malaysian government. 0-50 Good
In 2008—by which point a total of fourteen states had joined the suit—the U.S. Court of Appeals for the District of Columbia ruled that the EPA regulations violated the Clean Air Act. [60] In response, EPA announced plans to propose such standards to replace the vacated Clean Air Mercury Rule, and did so on March 16, 2011. [61]
The federal regulations don't mandate electric trucks or school buses, unlike California's tougher standards. But the EPA's rules will curtail a billion tons of greenhouse gas emissions each year.
Air Quality Law (Limit Values for Benzene and Carbon Monoxide in Ambient Air) Regulations P.I. 516/2002 Air Quality (Ozone in Ambient Air) Regulations P.I. 194/2004 Control of Atmospheric Pollution (Control of Volatile Organic Compounds Emissions Resulting from the Storage of Petrol and its Distribution from Terminals to Service Stations ...
For example, the United States Environmental Protection Agency, National Oceanic and Atmospheric Administration, National Park Service, and tribal, state, and local agencies coordinate to produce an online mapping and data access tool called AirNow, which provides real-time public access to U.S. air quality index information, searchable by ...