EV tires' health hazards

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【Summary】EV tires wear out quickly, leading to the release of microscopic rubber particles that contribute to pollution. The particles, some as small as a human cell, can end up in the air, water, and living beings. Scientists have linked a chemical used in tires to the premature deaths of salmon. This raises concerns about the health risks associated with the particulate emissions from EV tires.

FutureCar Staff Sep 06, 2023 6:46 AM PT

Buyers of Rivian's electric pickup and SUV often express a common complaint on online forums - the tires wear out too quickly. One Colorado Rivian driver had loaded his truck with two motorcycles and embarked on a journey. After traveling approximately 6,000 miles, he noticed that nearly a tenth of an inch of rubber had worn off his front tires. These tiny rubber particles now exist somewhere in the environment. Other electric vehicle buyers have also reported similar experiences.

While electric vehicles have successfully eliminated tailpipe emissions, they are contributing to another form of pollution that is causing concern among scientists and environmentalists. The substantial weight of these vehicles is exacerbating the issue.

It has long been understood that tires emit pollution. As they roll on pavement, the friction causes rubber and other substances to break down into particles. Over time, these particles, some as small as a human cell, end up in the air, water, and even living organisms. Scientists in Washington state have found a link between a chemical called 6PPD, which is used in all tires to prevent cracking, and the premature deaths of salmon. During rainstorms, the 6PPD washes off the roads and into streams, where it is then ingested by the fish.