Air pollution levels remain high across parts of England and Wales but are expected to reduce later today.
The Department for Environment, Food and Rural Affairs (Defra) reports that more than 20 areas from northern England down to the South East are still gripped by high levels of pollution this morning.
But a fresh air mass arriving later is expected to push the pollution eastwards over the North Sea, weather forecasters have said.
Higher numbers of complaints about breathing difficulties are thought to have been brought on by record pollution levels in recent days.
Air pollution in the east of England reached the top of the scale as a 'perfect storm' of conditions blanketed parts of the country.
Our region is one of the worst-affected by "very high" levels of air pollution today, with much of the East stuck under a cloud of smog.