criteria air pollutants मीनिंग इन हिंदी

HECA would have produced over 500 tons of criteria air pollutants.
In 1970, the Clean Air Act Amendments set six criteria air pollutants which are updated periodically by the National Air Quality Standards ( NAAQS ) and the U . S Environmental Protection Agency ( USEPA ).
In the United States, nitrogen oxides, PM, carbon monoxide, sulphur dioxide, and ozone, are regulated as criteria air pollutants under the Clean Air Act to levels where human health and welfare are protected.
Sixteen years later, local citizen utilizes Bucket Brigades to document a handful of criteria air pollutants such as sulfur dioxide [ SO2 ], carbon monoxide [ CO ], nitrous dioxide [ NO2 ], and ozone [ O3 ] . This study involves citizens to actively collecting the samples of emissions from Chevron s refineries, especially during accidents, fires, leaks, and explosions . The sniffers alert the samplers to collect the air samples when they notice a problem . The samplers then contact the Coordinator to check the bucket and perform the paperwork before submitting the samples to the Laboratory, in which the results will be reported to CBE, an environmental justice organization.