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Replies to post #85809 on Tesla Inc (TSLA)
The study, published by emissions data firm Emission Analytics, was released in 2022 but has attracted a wave of attention this week after being cited in a Wall Street Journal op-ed Sunday.
It found that brakes and tires on EVs release 1,850 times more particle pollution compared to modern tailpipes, which have “efficient” exhaust filters, bringing gas-powered vehicles’ emissions to new lows.
Today, most vehicle-related pollution comes from tire wear.
Electric vehicles are often heavier than regular gas-powered cars due to the weight of their engines, which can reach 1,850 pounds. The heavier engines place extra weight on the tires and cause them to wear out faster, according to the study. A 1,100-pound engine can cause more than 400 times the emissions as direct exhaust emissions.
Particle pollution from tires is the biggest contributor to vehicle-related emissions.
“But you have this downside of EVs that increases particle pollution. Air pollution is about what we breathe and the health effects,” Molden said, assuring that the toxins in tires have much less impact on climate change than they do on “what we eat and are ingesting.”
Increased exposure to these toxins “can increase the risk of health problems like heart disease, asthma, and low birth weight,” according to the New York Department of Health, which noted that pollution from sources including vehicle exhaust can travel long distances from its source and still cause health issues at unhealthy levels.
“A lot of it [chemicals] goes into the soil and water, affecting animals and fish. And we then go and eat the animals and fish, so we are ingesting tire pollution,” Molden added.
But after less than 5,000 miles of driving around his Boca Raton neighborhood, Semel was shocked to find some essential — and very expensive — parts were already wearing out. The tires. “If somebody looked at me and said, Mr. Semel, you are going to love this car but in about 7,000 miles you will have to pay 1,400 or 1,500 dollars to replace the tires, I wouldn’t have bought the car,” Semel said. For many drivers of EVs in Florida — the nation’s second largest market for electrical vehicles — premature tire wear has become an unexpected black mark on vehicles promoted as a green climate-friendly option to gas-gulping cars.
At EV Garage Miami, a Sweetwater repair shop that services 90 percent electric vehicles, lead technician Jonathan Sanchez said tires are the most frequent thing customers come in about — no matter what model or make of EV they’re driving. Tire mileage can vary widely of course, but he said he frequently changes EV tires at just 8,000 to 10,000 miles — a fourth or even fifth of typical tire wear on a gas-burning car.
04/20/24 9:24 AM
