The study's results are especially concerning for many of communities of color in Massachusetts, where the legacies of racist planning policies expose Asian, Latinx and black neighborhoods to higher levels of tailpipe pollution.

A $1 trillion draft economic stabilization plan from the U.S. Senate provides no financial assistance for the nation's transit agencies, which have been bleeding red ink due to the COVID-19 pandemic

Add this to the city's Vision Zero agenda: tailpipe pollution may be even deadlier to city-dwellers than crashes.

More evidence that discounted transit fare for low-income households offer significant benefits to those households without necessarily contributing to peak-hour crowding.