TOxygen smog has been a part of big city life since the Industrial Revolution. Harmful particles can be like pea soup, so thick that they are difficult to see and breathe. But in many cities around the rich world, that dirty oil was banished as car engines became cleaner and factories moved. (Poor cities are still not so lucky.)
Some people believe that the transition to electric vehicles could reverse some of that progress. That means heavier cars and particles created by friction can sacrifice clean air on the altar of zero carbon emissions.
In our EV myth-busting series, the Guardian has examined claims about electric vehicles (EVs), examining issues ranging from carbon emissions and battery fires to the idea of overtaking them with hydrogen. In the latest installment of the series, do electric cars have an air pollution problem?
Claim
Electric cars eliminate engine pollution, but brakes and tires still rely on friction to function. This friction can cause substances to break down and eventually be released into the environment. Some argue that the transition to EVs could increase overall air pollution because they tend to be heavier and have more wear and tear.
In 2022, then British Environment Minister George Eustace said: Said Congress of “skepticism” about improving air quality. “Some say the fact that these vehicles are heavier means they may be less profitable than some are expecting, just from road wear and tear, but it's a bit unclear at this point. ” he said.
The Daily Mail reported that tire pollution is the “dirty secret of electric cars”, while the Sun reported that “super-heavy electric cars actually cause more pollution than petrol or diesel motors” EV drivers are being warned about how to
science
EVs do not directly burn fossil fuels and produce no emissions when produced using only zero-carbon electricity. This means that not only carbon dioxide, but also carbon monoxide, nitrous oxide, a mixture of carbon, metals and unburned hydrocarbons are not emitted in urban areas. (Fossil fuel power plants still have problems charging electric cars, but they tend…thors difficult, and there have been relatively few comparative studies to date. This means there is still uncertainty as to whether the extra weight of EV batteries will lead to worse particulate pollution.
German tire maker Continental said vehicle and tire design is more important than driving style or road curves in determining wear (a point echoed by Malden). A Continental spokesperson said: “In principle, electric cars do not generate more particulate matter than comparable internal combustion…ase by a slight decrease in total PM emissions from road traffic in the future.” The study found that heavier electric vehicles experience slightly more road and tire wear than larger electric vehicles. 10pm Particles and smaller objects PM2.5. However, when engine pollution was added, gasoline and diesel cars did slightly worse.
Source: www.theguardian.com
