Skip to Content
Streetsblog Los Angeles home
Streetsblog Los Angeles home
Log In
Streetsblog Mass

Study: Highway Pollution Contributes to Higher COVID-19 Death Rates

Traffic congestion on I-93 southbound in downtown Boston, pictured around 2 pm on Thursday, August 8, 2019.

A new nationwide study from Harvard's T.H. Chan School of Public Health suggests that people living in neighborhoods with higher levels of fine particulate air pollution are more likely to die from COVID-19 infection than patients from areas with cleaner air.

That's 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 from highways and other major roads.

The Harvard study compares the nation's county-level COVID-19 deaths (as of April 4) with each county's corresponding long-term average concentrations of pollution particles smaller than 2.5 micrometers in diameter, also known as PM2.5 or "fine particulate" pollution.

The authors concluded that counties with just one more microgram per cubic meter in their average PM2.5 levels had, on average, a 15 percent higher mortality rate from COVID-19.

The results "underscore the importance of continuing to enforce existing air pollution regulations to protect human health both during and after the COVID-19 crisis," write the study's authors.

Dust from worn tires, brake linings, and tailpipe exhaust make major highways one of the primary sources of PM2.5 pollution in cities. Some of the Commonwealth's worst ambient pollution levels are located in Boston’s Chinatown, home to chronically-congested entrances to the O’Neill tunnel and the I-90/I-93 interchange.

A 2019 study from the Union of Concerned Scientists found that Asian residents of Massachusetts generally breathe in 36 percent more PM2.5 pollution from traffic than the typical white Massachusetts resident; African American residents breathe about 34 percent more pollution, and Latinx resident breathe 26 percent more.

Major highways increase the health risks of fine particulate pollution exposure in the Commonwealth's biggest cities. Courtesy of the Union of Concerned Scientists.
Major highways increase the health risks of fine particulate pollution exposure in the Commonwealth's biggest cities. Courtesy of the Union of Concerned Scientists.
false

Stay in touch

Sign up for our free newsletter

More from Streetsblog Los Angeles

Metro Looks to Approve Torrance C Line Extension Alignment

Selecting the relatively low-cost hybrid alternative should help the oft-delayed South Bay C Line extension move a step closer to reality

April 16, 2024

This Week In Livable Streets

CicLAvia returns to Venice Boulevard, Metro board committees, L.A. City Council Transportation Committee, Metro budget theater, and more

April 15, 2024
See all posts