Ten Out of Ten in London

Londoners are warned to avoid strenuous exercise on Friday, the 14th of January 2022 (https://www.theguardian.com/uk-news/2022/jan/13/londoners-told-to-reduce-physical-activity-on-friday-due-to-pollution). An intense high pressure area will be hovering over the UK capital on that date. This will result in air pollution reaching its highest level (10). Such conditions are especially dangerous to people with respiratory problems but even the healthy may suffer. Weather conditions can make it dangerous to live in certain locations, especially when combined with pollution.