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Researchers present new explanation for the long-range transport of PAH pollutants

Green Car Congress

When airborne particles (green) form before PAHs adhere, both the pollutants and particles dissipate quickly, as shown in the top row. But when the particles form in the presence of pollutants, which is what likely happens in nature, the longer-lasting particles enable the long-range transport of the pollutants (bottom).

Pollution 244
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EPA issues updated air pollution standards for oil and natural gas production; first federal rules for fracked natural gas wells

Green Car Congress

In response to a court deadline, the US Environmental Protection Agency (EPA) has finalized standards to reduce air pollution associated with oil and natural gas production. When natural gas is produced, some of the gas escapes the well and may not be captured by the producing company. Methane 1.0 equivalent (CO 2 e)].

Gas 210
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Study findings suggest that switching from coal to natural gas would do little for global climate

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Relying more on natural gas would reduce emissions of carbon dioxide, but it would do little to help solve the climate problem. The burning of coal releases more carbon dioxide than other fossil fuels, as well as comparatively high levels of other pollutants, including sulfur dioxide, nitrogen oxides, and particles such as ash.

Coal 334
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Sandia-led team designs feasible hydrogen fuel-cell coastal research vessel; implications for large hydrogen-fueled vessels

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and criteria pollutant (smog) emissions were estimated for the Zero-V based on a complete “well-to-waves” (WTW) analysis. The situation is dramatically improved using renewable hydrogen, such as that made from biogas, or by water electrolysis using wind or low-carbon nuclear power. The annual WTW CO 2 (eq.) Gigagrams (Gg) of CO 2 (eq.)

Hydrogen 315
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EPA proposes waiving Federal requirements for stations to capture gasoline vapors when vehicles refuel beginning in 2013

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ORVR systems are carbon canisters installed in vehicles to capture gasoline vapors evacuated from the gasoline tank before they reach the pump nozzle. Vapor emissions from refueling, if allowed to escape, can contribute significantly to ground-level ozone, sometimes called smog, as well as to other types of harmful air pollution.

EPA 186
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Reports highlight ongoing advances in vehicle technology, consumer demand for fuel efficiency in US and Europe

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Standouts include the Chevy Malibu (went from 20 to 29 mpg), the Honda Accord (went from 24 to 30 mpg), the Nissan Altima (went from 26 to 31 mpg), the Ford Escape (went from 19 to 25 mpg), and the Ford Fusion (went from 21 to 26 mpg.). Over the past 6 years, there were even greater mileage improvements for many individual models.

Europe 281
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How much do electric cars really pollute, even without tailpipes?

Green Car Reports

But there's no escaping that manufacturing these vehicles, driving them for 10 years or more, and then disposing of them creates pollution that has a wide range of negative impacts. Personal automobiles have given hundreds of millions of people the great luxury of a convenient and comfortable mode of transportation.