Bank Holiday heatwave prompts air pollution warnings
Record-breaking May Bank Holiday temperatures have led to warnings high and moderate levels of ozone air pollution in London and parts of the south east of England.
UK breaks record for consecutive ozone pollution breaches
Ozone (O3) alert levels have been breached in the UK for the fourth consecutive day, breaking the record for consecutive days where Defra have been legally required to inform the public of a pollution alert.