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

Green Car Congress

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. This action follows petitions for a rulemaking on this issue from more than 20 organizations including state and local air agencies from across the country.

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CMU study finds SOA levels in cities like LA will remain high despite cleaner cars; nonlinear relationship between SOA and NOx

Green Car Congress

The findings of a study by researchers at Carnegie Mellon University, with colleagues at UC Berkeley, suggest that changing atmospheric NO x levels over the next two decades will likely significantly reduce the effectiveness of stricter new gasoline vehicle emissions standards in reducing concentrations of secondary organic aerosol (SOA).

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Chicago Area Clean Cities names American Lung Association 2017 Clean Fuels Champion

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The American Lung Association has been named the 2017 Clean Fuels Champion by Chicago Area Clean Cities (CACC), a nonprofit coalition dedicated to promoting clean-energy and clean-air solutions for transportation in the Chicago area impacting nearly 9 million people. —Harold P.

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California Assemblymembers introduce bill phasing out gasoline-fueled small off-road engines

Green Car Congress

Today, operating the best-selling gas-powered commercial leaf blower for one hour emits air pollutants comparable to driving a 2017 Toyota Camry from Los Angeles to Denver. We can and must help small landscaping businesses replace their gas-powered equipment with cleaner alternatives. —Assemblymember Marc Berman.

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New study shows a rapid increase of diesel-fueled backup generators across California

Green Car Congress

Diesel generators release greenhouse gases, particulate matter (PM), volatile organic compounds (VOCs), nitrous oxides (NO x ) and sulfur dioxide (SO 2 ), harmful pollutants that create smog and exacerbate respiratory conditions. In 2021, the two districts were collectively home to 23,507 backup generators with a capacity of 12.2

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US EPA proposes to retain existing NAAQS for ozone

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From 2017 to 2019, ozone concentrations fell 4%. Since the beginning of the Trump Administration, EPA has also re-designated 13 nonattainment areas for the 2008 8-hour ozone standards to attainment meaning these communities are now breathing cleaner air. During that same time, national average ozone concentrations have dropped 25%.

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EPA issues ANPR on Clean Trucks Initiative, seeking input from public and stakeholders

Green Car Congress

The US EPA issued an Advance Notice of Proposed Rulemaking (ANPR) for the Cleaner Trucks Initiative (CTI). This action follows on the petitions from more than 20 organizations, including state and local air agencies, to revise and promulgate more stringent NO x standards. From 2007 to 2017, US NO x emissions dropped by more than 40%.

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