2026 Nitrogen Oxides Regulations 
Union of Concerned Scientists
DECEMBER 21, 2023
But while greenhouse gas emissions may be reduced, a delivery fulfilled by a diesel-burning truck may lead to increases in emissions of smog-forming nitrogen oxides and lung-damaging particulate matter. The number of available electric truck models in the US and Canada has surpassed 180.
PA Environment Daily
MAY 1, 2025
until the construction of the well pad begins in early 2026. Note: During the lifecycle of a shale gas well pad there are other hazardous air pollutants emitted from these operations, for example, benzene, toluene, ethylbenzene, and xylene, formaldehyde, hydrogen sulfide, acrylonitrile, methylene chloride, sulfuric oxide, nitrogen oxides.
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Union of Concerned Scientists
DECEMBER 15, 2022
The EPA is getting ready to finalize a critical regulation limiting emissions of smog-forming nitrogen oxide (NO X ) and soot (or particulate matter, PM 2.5 ) from new heavy-duty trucks. State regulations have strict inducements, so the degree to which EPA aligns with such parameters is important.
Union of Concerned Scientists
AUGUST 22, 2022
California’s air pollution regulator, the Air Resources Board, is poised to adopt one of the most important steps that the state has ever taken to reduce exposure to air pollution and limit climate changing emissions. The ACCII regulations have several key components that make sure gasoline tailpipe pollution is greatly reduced.
Legal Planet
JUNE 5, 2025
After years of rule development, Southern California air quality regulators are set to vote tomorrow on a pair of proposals that would reduce harmful pollution from gas furnaces and water heaters. By weakening the proposal to its current form, regulators have already given up 40% of the projected emission reductions of the original proposal.
Union of Concerned Scientists
AUGUST 17, 2023
gigawatts of capacity from gas plants are planned to go online from 2023 to 2026. But gas plants also release emissions of nitrogen oxides, more commonly referred to as NOx emissions, that contribute to smog and other pollutants. NOx emissions stick around locally, with major health consequences to nearby residents.
Union of Concerned Scientists
MARCH 26, 2024
By 2032, new light-duty vehicle climate emissions would decrease by nearly 50 percent (to 85 grams/mile) compared to existing standards that go through 2026. The overall combination of reductions in particulate matter, nitrogen oxides and other air pollutants are expected to deliver $13 billion in annual health benefits.
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