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MIT study: half of US deaths related to air pollution are linked to out-of-state emissions

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The study focuses on the period between 2005 and 2018 and tracks combustion emissions of various polluting compounds from various sectors, looking at every state in the contiguous United States, from season to season and year to year.

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Study: traffic density, wind and air stratification influence concentrations of NO2

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In connection with the effects of the COVID-19 pandemic, satellite measurements made headlines showing how much the air pollutant nitrogen dioxide (NO 2 ) had decreased in China and northern Italy. In 2018/2019, for example, various measures were taken in Germany, ranging from a reduction in the number of lanes (e.g. in Stuttgart).

Wind 186
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As states continue to use less coal for electricity, driving electric vehicles becomes even cleaner

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These results indicate that coal and oil are the energy sources leading to most emissions, and that hydro, wind, and nuclear are the energy sources leading to least emissions. This study is an update of a study that examined the changes from 2008 to 2018. Energy source. Proportional amount of emissions relative to hydro. Natural gas.

Coal 334
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As states use less coal for electricity, driving electric vehicles becomes even cleaner

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These results indicate that coal and oil are the energy sources leading to most emissions, and that hydro, wind, and nuclear are the energy sources leading to least emissions. In 2018, only two states used oil to generate more than 3% of the electricity: 68% in Hawaii and 12% in Alaska.)

Coal 435
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Two-year study in Canada finds large trucks disproportionately contribute to higher levels of black carbon pollution

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Researchers found that air pollution levels right beside a major trucking route within a city were close to levels seen beside Highway 401, despite the road carrying less than one-tenth of the vehicle traffic. Jonathan M. Wang, Cheol-Heon Jeong, Nathan Hilker, Kerolyn K. Shairsingh, Robert M. 8b01914.

Pollution 231
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CMU study finds that coal retirement is needed for EVs to reduce air pollution

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In the study’s future 2018 grid scenarios that account for predicted coal plant retirements, PEVs would produce air emissions damages comparable to or slightly lower than HEVs. Life cycle emissions by pollutant and life cycle stage for each vehicle type in the recent (a) and future (b) PJM grid. Source: Weis et al.

Coal 150
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Study measures the effect of regional change in clouds caused by ships’ emissions; masking GHG warming

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This puffy line is not just exhaust from the engine, but a change in the clouds that’s caused by small airborne particles of pollution. Satellite image taken 16 January 2018 off the coast of Europe. Pollution from ships creates lines of clouds that can stretch hundreds of miles. Michael Diamond/University of Washington.

Emissions 223