Looks like we should be concentrating on baning wood burning rather than focusing on cars....a quick google found this from a Uk national paper.
The new government statistics show that domestic wood burning in both closed stoves and open fires was responsible for 38% of the pollution particles under 2.5 microns in size (PM2.5) in 2019, the latest year for which data is available. The report said PM2.5 emissions from this source had more than doubled since 2003, to 41,000 tonnes a year, and increased by 1% between 2018 and 2019. Road traffic caused 12% of PM2.5 in 2019.
In the 1970s and 80s, coal fires in homes were the primary source of small particle pollution but these now account for a very small proportion of PM2.5s, the report said. This fall, and cleaner vehicles and industry, mean overall particle pollution levels have fallen significantly since 1970, but they have levelled off in the past decade.
“This reflects the increasing popularity of solid fuel appliances in the home such as wood-burning stoves,” the report says. “Due to the small size of [particulate pollution] some of these toxins may enter the bloodstream and be transported around the body, lodging in the heart, brain and other organs. Therefore, exposure to PM can result in serious impacts to health.”
Wood burners also triple the level of harmful pollution particles inside homes and should be sold with a health warning, scientists warned in December. In January, experts at Asthma UK and the British Lung Foundation asked people to use wood burners only if they had no alternative source of heat. Prof Jonathan Grigg, of Queen Mary University of London, said: “It is difficult to justify their use in any urban area.”
The second report, produced by Kantar for the government, examined who was burning solid fuels at home and why, and included a survey of 46,000 people. It found that just 8% of people in the UK burned fuel indoors, with two-thirds of them living in urban areas where levels of dirty air were worst.