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London Chokes: Air Pollution Alert Issued
22 Jun
Summary
- London issued a high air pollution alert due to dry conditions and potential ozone increase.
- Residents are advised to reduce emissions and protect vulnerable individuals.
- This is the second high air pollution alert London has experienced this year.

London's mayor has activated a high air pollution alert for the capital, advising residents to take steps to safeguard their health and minimize pollution. Actions such as leaving vehicle engines idling and burning garden waste are discouraged.
The alert was recommended by forecasters at Imperial College London due to anticipated rises in ground-level ozone and particulate matter. This occurs as an extreme heat warning is also in effect, with temperatures expected to reach 39C.
This is the second high air pollution alert issued in London this year. The city's GPs and emergency departments have received additional information to assist vulnerable patients. High air pollution alerts are now visible across public transport networks and are being communicated to schools and boroughs.
Toxic air is a significant concern, linked to thousands of premature deaths annually. The deputy mayor emphasized the importance of collective action to protect the most vulnerable citizens. Ground-level ozone forms through atmospheric reactions, while particulate matter can be influenced by external pollution sources.