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Less traffic on the roads during the first COVID-19 lockdown in the UK led to a reduction in air pollution but may have caused potentially damaging surface ozone levels to rise, according to a new study led by researchers at the University of York. The problem is being created by the change in chemistry between NO x and O 3.
Zurich remote sensing data shows a wide disparity between petrol and diesel car NO x emissions, and substantial noncompliance by diesel cars. Some diesel cars that meet the latest Euro 6 standards in reality release more NO x than a modern heavy duty truck. Earlier post.). Source: The ICCT. Click to enlarge.
Specifically, they proposed a method to assess the contribution of EVs to urban air quality in Belgium, compared to conventional vehicles of the same weight class; they modeled the effect on human toxicity (HT), photochemical ozone formation (POF) and particulate matter formation (PMF). 2016.01.014. 2 doi: 10.3390/en9020084.
What I do know, is how fossil fuel vehicles have contributed heavily to poor air quality in our towns and cities, damage to the environment, soil and water quality and have contributed to the depletion of the ozone layer! Which was the last petrol / fossil fuel car you owned? The last petrol car I owned was the Mazda 3.
Further, the Department for Transport in the UK has declared that it will have banned all conventional petrol and diesel cars by 2030. Global warming plays a role in thinning the ozone layer, thus permitting harmful rays’ penetration to the earth. The rays can cause skin damage to humans and other species.
EVs don’t emit any harmful pollutants to the environment like soot, hydrocarbons, lead, ozone, carbon monoxide, or volatile organic compounds. Filling a petrol or diesel car is quick; however, this isn’t the case when charging an EV. Besides fuel cost savings, you might want to purchase an EV because of its low carbon footprint.
Dr Sara De Matteis, Associate Professor in Occupational and Environmental Medicine at Cagliari University, Italy, and member of the ERS Environmental Health Committee said: Urban air quality has improved in the last half century, but petrol and especially diesel vehicle fumes remain a serious problem.
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