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Study finds that replacing older, highly polluting school buses could lead to 1.3 million fewer daily absences annually

Green Car Congress

Replacing all of the oldest, highly polluting school buses in the US could lead to 1.3 The suspected cause of these preventable absences is exposure to high levels of diesel exhaust fumes, which can leak into school bus cabins or enter buses through open windows. million additional days of attendance a year.

Pollution 170
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EPA report shows progress in reducing urban air toxics across US; 50% reduction from mobile sources since 1990

Green Car Congress

The US Environmental Protection Agency (EPA) released the Second Integrated Urban Air Toxics Report to Congress—the final of two reports required under the Clean Air Act (CAA) to inform Congress of progress in reducing public health risks from urban air toxics (also referred to as hazardous air pollutants or HAPs).

EPA 273
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EPA proposes approval of new ozone plans for the two of the worst Air Quality Zones in US: California’s San Joaquin Valley and South Coast

Green Car Congress

US EPA Region 9 8-hour ozone trends, 1979-2000. These new SIPs demonstrate that, by 2024, pollution will be reduced to the level needed to attain the 1997 8-hour ozone standard of 0.08 In both areas, statewide measures such as the in-use truck and off-road diesel rules, and smog-check improvements will further reduce air pollution.

Ozone 236
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Winterkorn says Volkswagen developing 10-speed DCT and high-performance diesel; plug-in hybrids offer great potential

Green Car Congress

Since 2000, the group has reduced the fuel consumption of its TDI and TSI engines by more than 30%. On this basis the Volkswagen Group was working towards its declared objective of lowering the European new car fleet’s CO 2 emission level to 95 g of CO 2 /km by 2020. Earlier post.).

Plug-in 345
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New split-cycle concept to control diesel HCCI combustion

Green Car Congress

The basic idea of the new Diesel combustion illustrated in this paper is to control the heat release rate by a gradual supply of an almost homogeneous charge, without relying on exhaust gas recirculation to moderate the reaction. Pollutant emission behavior vs. engine speed.confirms the validity of the HCPC combustion concept.

Concept 318
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EEA finds only mixed progress for Europe’s transport sector in meeting environment, climate goals; GHG emissions up 25% since 1990

Green Car Congress

Issues covered in the briefing include emissions, air pollution, noise and renewable energy and the impact of transport on ecosystems and biodiversity. It also continues to be a significant source of harmful air pollution, especially through emissions of nitrogen dioxide and particulate matter. Air pollution. in 2015 to 7.1%

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ICCT study confirms feasibility of implementing IMO Tier III NOx standards using SCR; fuel efficiency gains as well

Green Car Congress

Annex VI of the International Convention for the Prevention of Pollution from Ships (MARPOL 73/78) introduced a stepwise approach to the reduction of emissions of NOx from new marine vessels. It is the only technology currently available to achieve compliance with the IMO’s Tier III NO x standards for all applicable engines.

Standards 218