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Study finds propane school buses significantly decrease NOx emissions compared to diesel

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According to a study commissioned by the Washington, DC-based Propane Education & Research Council (PERC), NO x emissions measured from propane autogas school buses were substantially lower than those measured from diesel school buses. For the stop-and-go route, NO x emissions were 34 times higher for the diesel school bus.

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Latest GHG Inventory shows California remains below 2020 emissions target; much steeper rate of GHG reductions required

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California’s latest greenhouse gas data shows that while the state continues to stay below its 2020 target for emissions, there is much more work to do to achieve carbon neutrality by 2045. Total statewide 2018 GHG emissions were 425.3 million metric tons between 2017 and 2018, the first such decline since 2013.

2020 221
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Study provides more insight into air pollution mechanisms that cause cardiovascular diseases

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course, fine, ultrafine particles) and gaseous pollutants such as ozone, on vascular function. Key research questions focused on components of air pollution (particulate matter, ozone, nitrogen dioxide, carbon monoxide, and sulfur dioxide) that are particularly damaging to the cardiovascular system and mechanisms that damage the vessels.

Pollution 220
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Study finds significant slowdown in decrease of NOx emissions in US; implications for air quality management

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The researchers analyzed extensive satellite and ground-based measurements of nitrogen oxides and carbon monoxide. They found that levels of pollutants that can contribute to the formation of ground-level ozone, or smog, have failed to continue a fairly steady decline as estimated by the US Environmental Protection Agency.

Emissions 150
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California ARB moves forward with climate and air quality actions

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CARB also adopted a new plan to curb destructive “super pollutants” including black carbon, fluorinated gases and methane. Approximately 70% of the reductions needed to meet the ozone standard in the South Coast in 2031 would come from existing or proposed regulatory actions. emissions by more than 20%. emissions by more than 20%.

Climate 199
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Tohoku team finds swirling ammonia in combustion chambers can help reduce NO emissions

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The finding helps advance research into ammonia as an alternative to carbon-based fuels for cars, airplanes, and power generation facilities. Nitric oxide is known to be harmful to human health, contributes to ozone depletion, and when it reacts with other compounds, contributes to acid rain and atmospheric warming.

Emissions 308
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California Air Resources Board posts revised draft of strategy to reduce “Super Pollutants”

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SLCPs include black carbon (soot), methane and hydrofluorocarbons (HFCs)—the fastest-growing source of GHG emissions in California and globally—which are used as refrigerants, aerosol propellants and insulation. Black carbon. SLCPs may account for an estimated 40% of global warming, increasing the impacts of climate change.

Pollution 150