Green Car Congress
FEBRUARY 11, 2021
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 The researchers found an elevation in the PM 2.5
Green Car Congress
SEPTEMBER 4, 2014
The CSRC was formed in January 2011 with three charter members; the first phase of research will conclude in 2016.
Green Car Congress
DECEMBER 13, 2011
At a minimum, these standards should address obstacle detection distance, timing of alerts, and human factors guidelines, such as the mode and type of warning. In Philadelphia in 2010, a barge being towed by a tugboat ran over an amphibious duck boat in the Delaware River, killing two Hungarian tourists.
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