EV Brake Dust: A Hidden Air Pollution Threat
2025-07-24
A new study reveals that while electric vehicles (EVs) produce significantly less brake dust than gasoline cars thanks to regenerative braking, it's still a substantial source of air pollution. Brake dust, containing metals like iron, copper, and zinc, is harmful to human health. The study found that up to 55% of non-exhaust traffic-related PM10 in cities comes from brake wear. Although EVs have slightly higher tire wear, brake dust is more likely to become airborne. Improving air quality requires not only promoting EVs but also addressing non-exhaust pollution sources and encouraging public transport, cycling, and walking.
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Brake Dust