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Study found highly elevated PM2.5 in pre-COVID-19 subway air in NE US; NYC the worst

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concentrations and particle composition from area samples collected in the subways of Philadelphia, Pennsylvania; Boston, Massachusetts; New York City, New York/New Jersey (NYC/NJ); and Washington, District of Columbia. Philadelphia was comparatively the cleanest system at 39 ?g/m This concern is highest for the PM 2.5

New York 418
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Study: US counties with higher PM2.5 concentrations have more stroke deaths

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Analyzing health data and pollution monitoring information from 1,561 counties across the United States between 2005 and 2010, researchers found the yearly average for fine air pollution ranged from 7.2 average 11.75) micrograms per cubic meter. Overall, the annual average was at a level considered acceptable. —Longjian Liu, M.D.,

Pollution 207
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THINK Releases US EV-Ready Cities Index

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The remaining cities included Denver, Boston, Washington, DC, Philadelphia and Phoenix. THINK developed the EV-Ready Cities Index to measure which markets are most likely to begin and benefit from the transition to electric vehicles, providing an objective comparison of the EV purchase and usage incentives as well as the market fit for EVs.

San Diego 231
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US Navy completes sea trial with ARA’s 100% drop-in renewable diesel fuel

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Navy engineers monitored the performance of the gas-turbine engines and generators while running on petroleum F-76 prior to taking on the ReadiDiesel to establish a baseline for comparison. The component and full-scale engine testing included performance tests to determine the combustion quality and emissions.

Renewable 150