Jo Jackson says now is the time for the athletes to get their heads down.
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A £255million fund has been announced to help councils including in Leeds and Sheffield cut air pollution on their worst affected roads.
A six-year-old boy who died last week - months after being diagnosed with a brain tumour - is being laid to rest today.
Courtney Boyle, 19, was killed when a suicide bomber detonated explosives in a foyer of Manchester Arena in May.