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MECA emissions inventory & air quality modeling shows potential benefits of national cleaner trucks initiative at CARB limits

Green Car Congress

Later years should show additional improvements as greater fleet turnover occurs. The modeled 2028 base year 8-hour ozone design values were found to be above the 70 ppb NAAQS for 75 monitoring locations. Metropolitan areas and highway corridors will see the greatest reduction in ozone due to the strategy, with reductions of up to 6.5

Cleaner 243
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EPA launches Cleaner Trucks Initiative to update NOx standards for heavy-duty trucks

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The US Environmental Protection Agency (EPA) has launched the Cleaner Trucks Initiative (CTI) to further decrease NO x emissions from on-highway heavy-duty trucks and engines. The US has made major reductions in NO x emissions, but it’s been nearly 20 years since EPA updated these standards.

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ARB posts discussion draft of new proposed mobile-source emissions reduction strategy through 2030; Advanced Clean Cars 2 regulation

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ARB staff developed this strategy using a multi-pollutant scenario planning tool ( Vision 2.0 ) that quantifies changes in ozone and PM 2.5 precursor emissions; GHG emissions; petroleum usage; and diesel toxics emissions as various technologies become widespread in vehicle and equipment fleets. Vision 2.0 Click to enlarge.

Clean 150
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Pennsylvania DEP awards nearly $517,000 in clean diesel grants

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The Pennsylvania Department of Environmental Protection (PA DEP) awarded $516,637 in clean diesel grants to four organizations. The clean diesel program’s goal is to improve air quality by decreasing emissions from diesel-powered transit bus and school bus fleets. Jennings Transportation Corp.:

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California ARB moves forward with climate and air quality actions

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On the first day of a two-day board meeting—the second day of which (Friday 24 March) will consider the Advanced Clean Cars Midterm Review—the California Air Resources Board (ARB) took a number of climate and air quality actions. emissions by more than 20%.

Climate 199
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Study: consumer products overtake transportation as largest source of VOCs air pollution in cities

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Consumer products such as shampoo, cleaning products and paint now contribute as much to emitted volatile organic compounds (VOCs) in cities as tailpipe emissions from vehicles, according to a new study led by NOAA. As transportation gets cleaner, those other sources become more and more important. McDonald et al. Click to enlarge.

Pollution 264
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California ARB Expands Assistance Program for Truckers to Reduce Diesel Emissions

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The California Air Resources Board approved changes to an existing $28 million financial assistance program this week that will significantly help more California independent truckers qualify for the purchase of a cleaner-running vehicle. VIP is part of the state’s overall plan to cut toxic diesel emissions 85 percent by 2020.