As with PM 2.5, many of the deaths due to vehicle injuries are never counted. There are about 10 serious injuries for every death that occurs. This number does not include people who end up in wheelchairs or who suffer chronic pain as a result of non-fatal injuries. Traffic within the community is also a major source of injuries, of course, killing about 40,000 people nationwide annually and about 250 in New York City alone. While 4.5 million deaths is a lot, a much bigger toll is exacted on those still alive-stroke and heart disease certainly hasten death, but in the meantime they exact years of suffering. In the US, the annual number of deaths is lower, roughly 50,000, thanks to air quality regulations from the Environmental Protection Agency. At least 4.5 million people are killed as a result of exposure to PM 2.5 every year globally.
The biological damage caused by PM 2.5 can cause cancer, heart disease, stroke, and premature cellular aging. These smaller sources matter a lot because there is no safe level of exposure to PM 2.5-even a little will still spread through the air, into and through the lungs, and then into cells where it damages DNA. PM 2.5 is also produced in smaller quantities by gasoline-burning engines, tires against the pavement, and brake pads against disc rotors. PM 2.5 is produced in large quantities when diesel fuel is burned and is a part of the plumes of black smoke you sometimes see billowing out of truck exhaust pipes. The most important form of air pollution is small particulate matter called PM 2.5, which may be the biggest contributor to death and disability worldwide. Traffic affects the health and well-being of communities in countless ways, but four of these are very important contributors to suffering and the loss of life.īy far the biggest factor in determining the impact of traffic on community health is air pollution. How does vehicle traffic affect the health and well-being of communities? What can cities do to regulate traffic and ease congestion? Traffic volume on New York City bridges and tunnels returned to pre-pandemic levels in 2021, and has continued to trend higher.
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