In the face of growing concern about climate change, the interest in environmentally friendly transportation options has surged. Electric vehicles (EVs) have long been hailed as a cleaner alternative to traditional petrol and diesel cars due to their lower greenhouse gas emissions. However, a recent study conducted by Emission Analytics, an emissions data analysis firm, casts doubt on this widely held belief.
The study, featured in a Wall Street Journal op-ed, sheds light on a previously overlooked aspect of pollution — particles originating from brakes and tires in both electric and fossil fuel-powered vehicles. Contrary to common perceptions, the key finding reveals that EVs, owing to their heavier weight, might emit significantly more particulate matter from brakes and tires compared to modern gas-powered vehicles equipped with efficient exhaust filters. The study suggests that the difference could be as high as 1,850 times.
The primary concern centers around tire wear, with Emission Analytics emphasizing that the heavier weight of EVs accelerates the deterioration of tires, leading to the release of harmful chemicals into the atmosphere. This is particularly notable as most tires are manufactured from synthetic rubber derived from crude oil.
Furthermore, the study underscores the impact of battery weight on EVs. These vehicles typically carry heavier batteries compared to their traditional petrol counterparts, placing additional strain on brakes and tires and hastening the rate of wear and tear.
According to the study, the emissions from tire wear in an EV equipped with a half-tonne (1,100 pounds) battery could potentially exceed exhaust emissions from a modern petrol car by over 400 times.
While the general focus has historically been on tailpipe emissions, this study prompts a reevaluation of the environmental impact of EVs by emphasizing the need to consider particle pollution from brakes and tires. The findings challenge prevailing assumptions and highlight the multifaceted nature of the environmental considerations associated with electric vehicles.
