How to avoid the worst air pollution when travelling around London

Healthy travel produces the least pollution, moves your body, and reduces risk to yourself and others — including exposure to air pollution. A recent study <a href="https://felixonline.co.uk/issue/1813/news/air-pollution-levels-at-south-kensington-station-above-who-guidelines-finds-new-study" rel="noopener ugc nofollow" target="_blank">reported on by Felix</a>, on air pollution in the London Underground stated that levels of airborne particulate pollution were “more than double the WHO’s recommended limits”. But the reality is unfortunately much worse. In the reported study by <a href="https://www.sciencedirect.com/science/article/pii/S0048969722064142?via%3Dihub=" rel="noopener ugc nofollow" target="_blank">Kumar et al.</a>, it is unclear if the instruments were calibrated to the underground environment before measuring. But calibration of the instruments is crucial to get accurate data. Kumar et al. found that levels of PM2.5 (denoting particles small enough to reach the alveoli in the lung) at the South Kensington Piccadilly line underground platform were between 40–50 μg/m3; whereas a previous study by <a href="https://www.sciencedirect.com/science/article/pii/S0160412019313649" rel="noopener ugc nofollow" target="_blank">Smith et al.</a> from King’s College (now absorbed into Imperial’s Environmental Research Group) used calibrated apparatus and found this value to be 178 μg/m3 — which is four times greater. <a href="https://medium.com/the-new-climate/how-to-avoid-the-worst-air-pollution-when-travelling-around-london-861732fe96c0">Visit Now</a>