This is the first time London has issued a high air pollution warning since August 2020. According to The BBC, pollution has built up over time from local emissions, and has been compounded by pollution from the rest of Europe.
The forecast predicts an influx of toxic air particles through Thursday, March 24, and therefore, those in London proper should stay inside as much as possible, and forgo using their cars — instead opting for public transportation, walking, or bicycling.
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