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Study finds NYC Clean Air Taxi rules successful in cutting pollution

Green Car Congress

New York City Clean Air Taxi rules are successful in cutting emissions and reducing air pollution, [link] to a new study by researchers at the Columbia University Mailman School of Public Health and Drexel University. The scientists report that overall fuel efficiency of the medallion taxi fleet climbed from 15.7

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London study finds taxi drivers face highest levels of black carbon compared to other professional drivers

Green Car Congress

The research also found that taxi drivers experience the highest exposures to black carbon, an indicator of diesel engine fumes, compared to couriers, truck drivers, waste removal and emergency service workers. It was a collaboration between researchers at King’s and researchers at Queen Mary University of London. —Shanon Lim.

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Swiss team finds particle emissions from aircraft turbine engines at ground-idle induce oxidative stress in bronchial cells

Green Car Congress

Now, in addition to already investigated particle sources such as emissions from heating systems, industry and road traffic, aircraft turbine engine particle emissions have, in the wake of increasing air traffic, also become more important. Image: University of Bern /SR Technics Switzerland AG.

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Study suggests high-mileage light-duty fleets contribute higher emissions and emissions share than expected

Green Car Congress

A study by researchers from the University of Denver and the University of Puget Sound indicates that high-mileage light-duty fleets contribute higher emissions and emissions share than expected based on their actual numbers in the fleet.

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Tongji team estimates vehicle emission factors in Shanghai with MOVES and GPS data

Green Car Congress

A team from Tongji University in China has generated comprehensive emission factors (functional relations between pollutant emissions and the activity that causes them) for Shanghai, China light-duty vehicles at various average speed levels. g/km; 4 to 7 g/km; and 0.4 g/km, respectively.

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Following the Money in the Air-Taxi Craze

Cars That Think

During rush hour, the skies over a large city, such as Dubai or Madrid or Los Angeles, would swarm with hundreds, and eventually thousands, of eVTOL “air taxis.” If it does happen, a few studies have predicted that travel times and greenhouse-gas and pollutant emissions could all be reduced. A 2020 study published by the U.S.

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Study of In-use Vehicle Activity and Emissions in Tianjin, China Yields Fleet and Emissions Profiles, Policy Implications

Green Car Congress

Consequently, vehicle emissions have become an increasingly conspicuous contributor to air pollution in Chinese urban areas. Light-duty vehicles together contributed to 82% of all distance traveled (passenger cars, 64%; taxis, 18 %), buses and trucks contributed to 11% and 8% of total distance traveled respectively.

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