Remove Emissions Remove Light Remove Ozone Remove Transportation
article thumbnail

Study finds pollution emitted near equator has biggest impact on global ozone

Green Car Congress

They found that the increase in ozone burden due to the spatial distribution change slightly exceeds the combined influences of the increased emission magnitude and global methane. Based on their findings, they suggested that emission increases in Southeast, East and South Asia may be most important for the ozone change.

Ozone 230
article thumbnail

Study finds São Paulo switch from ethanol to gasoline dropped local ozone levels by 20%, increased CO and nitric oxide concentrations

Green Car Congress

A study by a pair of researchers at Northwestern University found that when fuel prices drove residents of São Paulo, Brazil, to switch from ethanol to gasoline in their flexible-fuel vehicles, local ozone levels dropped 20%. Ozone levels are relatively high in São Paulo, with hourly concentrations above 75 and 125 µg m ?3

Ozone 316
article thumbnail

HALO research aircraft measuring the emissions of megacities in EmeRGe project

Green Car Congress

However, emissions do not just remain in conurbations; particles and gaseous pollutants can be transported thousands of kilometers by the wind. A total of approximately 100 flight hours are planned for the measurement flights in the emission plumes of Asian cities, said John P. HALO in-hangar in Taiwan.

Emissions 268
article thumbnail

New international study finds lab testing of diesel NOx emissions underestimates real-world levels by up to 50%

Green Car Congress

A new international study has found that laboratory tests of nitrogen oxide emissions from diesel vehicles significantly underestimate the real-world emissions by as much as 50%. The research, led by the International Council on Clean Transportation and Environmental Health Analytics, LLC., million tons more than the 8.6

Diesel 230
article thumbnail

MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective

Green Car Congress

The transportation sector was responsible for over 7 million tons of NO x emissions in the US in 2014, with 50% of this sector’s NO x attributed to heavy-duty on- and off-road vehicles and equipment. NO x is a precursor for both ground level ozone and secondary PM 2.5 Source of data: US EPA (2019). Chart: MECA.

Emissions 291
article thumbnail

Northwestern/Princeton study explores air quality impacts of aggressive conversion to EVs

Green Car Congress

This despite evidence that suggests air pollution impacts from the transportation sector exceed those from greenhouse gases. … NO x -vs.VOC-limited for O 3 , NH 3 -rich vs. For example, states in the western US (WUS) generally produce a larger fraction of their electricity from renewable and/or “emission-free” sources (i.e.,

article thumbnail

Volvo Trucks awarded $21.7M from US EPA and South Coast AQMD to deploy 70 Class 8 VNR Electric trucks

Green Car Congress

Volvo Trucks will leverage best practices learned from the Volvo LIGHTS (Low Impact Green Heavy Transport Solutions) project, its collaboration with South Coast AQMD and 13 other organizations to develop an end-to-end blueprint to successfully introduce battery-electric trucks and equipment into the market at scale.

Volvo 186