London Chokes: Air Pollution Alert Issued

A high air pollution alert has been declared for London by the mayor. This action was advised by forecasters at Imperial College London after a weekend characterized by dense fog and very light winds, which allowed pollution to accumulate. The mayor's office indicated that smoke from recent Bonfire Night and Diwali fireworks likely contributed to the elevated levels.

Londoners are advised to take precautions for their health amidst forecasts of high particle pollution. Recommendations include prioritizing walking, cycling, and public transport use, reducing personal vehicle use, and avoiding any unnecessary burning at home. This alert is the fourth issued in the capital this year, with the previous one occurring in June during a heatwave.

Additional information has been disseminated to London's GPs and emergency departments to ensure vulnerable patients receive appropriate care. City Hall issues these alerts to residents, schools, and boroughs when moderate, high, or very high air pollution is anticipated. Public displays across London, including bus countdown signs and Underground stations, will also show these warnings.

Lingering fog is expected to dissipate by Tuesday morning, giving way to cooler, frosty conditions later in the week. The Met Office noted persistent high pressure has led to light winds and clear skies, facilitating fog formation, which has been slow to clear due to weak November sunshine. Another night of dense fog is anticipated before increasing cloud and wind limit further widespread fog development.