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Satellite study suggests California clean air regulations working to reduce PM2.5 emissions in state

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pollution in the state. is especially burdensome in California and accounts for the greatest percentage of health impacts attributable to air pollution. species, was recently published in the journal Atmospheric Environment. The open-access study, which focused on the four major components of PM 2.5 to predict PM 2.5

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Study: traffic density, wind and air stratification influence concentrations of NO2

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In connection with the effects of the COVID-19 pandemic, satellite measurements made headlines showing how much the air pollutant nitrogen dioxide (NO 2 ) had decreased in China and northern Italy. in Leipzig) to driving bans for older diesel vehicles (e.g. In Germany, traffic density is the most important factor. in Stuttgart).

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European Parliament to vote on proposal to veto increased diesel emissions limits

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The European Parliament will vote at the next plenary session on a proposal to veto a draft decision to raise diesel car emission limits for NO x by up to 110% when the Real Driving Emissions (RDE) test procedure is introduced. September 2009: 180 mg/km (Euro 5). January 2005: 250 mg/km (Euro 4). September 2014: 80 mg/km (Euro 6).

Emissions 150
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Study finds significant slowdown in decrease of NOx emissions in US; implications for air quality management

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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. We were surprised by the discrepancy between the estimates of emissions and the actual measurements of pollutants in the atmosphere.

Emissions 150
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NOAA and EPA Study Finds Highway Barriers May Reduce Pollutants as Well as Block Sound and Sight of Traffic

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Highway barriers erected along roadways to block the sound and sight of traffic for the adjoining neighborhoods may also be reducing the amount of pollutants, such as soot from diesel exhaust, reaching area residents, according to a study by NOAA and the US Environmental Protection Agency (EPA). Dennis Finn. Dennis Finn, Kirk L.

Pollution 170
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US EPA seeking to award up to $1M for project to mitigate black carbon from diesel sources in Russian Arctic

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The US Environmental Protection Agency (EPA) is soliciting proposals for a project to provide assistance in developing and implementing assessment and mitigation activities for diesel sources of black carbon in the Russian Arctic. In a presentation at the 242 nd National Meeting & Exposition of the American Chemical Society (ACS), Mark Z.

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Study Finds Environmental and Tailpipe Pollutants Benefits in Using Biodiesel in Construction Vehicles

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Using biodiesel in construction vehicles offers promising environmental benefits in terms of reduced tailpipe emissions as well as reductions in fuel cycle emissions of selected pollutants, according to a new study by researchers at North Carolina State University. Seven scenarios were used in the LCI analysis. higher for NO x. lower for PM.

Pollution 150