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Study finds in-car rush-hour exposure to some particulate pollution twice as high as previously thought

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A new study, part of the Atlanta Commuter Exposures (ACE) Study, has assessed on-roadway in-cabin particulate pollution (PM 2.5 ) collected from scripted rush hour commutes on highways and on non-highway side streets. Some drivers took highway routes while others stuck to busy thoroughfares in downtown Atlanta. Vreeland et al.

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MIT study says combustion emissions cause ~200,000 premature deaths/year in US; vehicles and power generation top sources

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The greatest number of emissions-related premature deaths came from road transportation, with 53,000 early deaths per year attributed to exhaust from the tailpipes of cars and trucks. Pollution from industrial activities was highest in the Midwest, roughly between Chicago and Detroit, as well as around Philadelphia, Atlanta and Los Angeles.

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Study links air pollution to increased emergency department visits for heart and lung disease

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cities including Atlanta, GA; Birmingham, AL; Dallas, TX; Pittsburgh, PA; St. We found that primary pollutants—those that are emitted directly from a source, such as car exhaust—were associated with ED visits for cardiovascular and respiratory diseases. nitrogen oxides) and secondary (e.g. —Krall et al.

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First results from HEI/ACES murine study find few biologic effects from exposure to exhaust from new technology diesel engines

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The few effects that were reported for the rats were mild hyperplasia (cell proliferation) in the lungs and slightly reduced lung function, and were most consistent with exposure to nitrogen oxides in the engine exhaust, which are being further reduced under 2010 US EPA standards now in effect. Advanced Collaborative Emissions Study (ACES).

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Eaton says testing and use show its cylinder-deactivation technology can help commercial vehicle OEMs meet coming emissions regulations

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The company will make the announcement at the North American Commercial Vehicle show (NACV) in Atlanta, Georgia, at which Eaton will display a suite of technologies. Eaton CDA technology increases the exhaust temperature at low load to allow the NO x aftertreatment system to quickly reach its peak efficiency range of 250–400°C.

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Yale study finds that organic aerosols more complicated than previously thought

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Posing risks to health and climate, these airborne particles generally fall into two categories: Primary organic aerosols that can form during combustion, such as in car and truck exhaust, and secondary organic aerosols that result from oxidation of organic gases and particles in the air. —Jenna Ditto, a Ph.D. Ditto, Emily B.