Independent: People should be braced for very high levels of air pollution over the next few days, experts have warned.
The East of England and Midlands were the worst-affected areas on Tuesday, but large swathes of England and Wales will see high levels of pollution on Wednesday, the Department for Environment, Food and Rural Affairs (Defra) said.
The elevated pollution levels have been caused by a combination of light south-easterly winds, the continental air flow and dust which has blown up from the...