Norwich City Council is taking steps to improve air quality it has said after calls have been made for a clean air zone to be created.

The authority insists the action they have taking already is making a difference - but more will be done.

It comes after Norwich MP Clive Lewis called on the government to bring a clean air zone in the city - a move which would see drivers of the most polluting lorries and taxis charged to drive in the area.

The city council has already made further moves to pedestrianise the city centre and divert traffic away from the most congested areas. Castle Meadow was the first Low Emissions Zone to be created outside London.

Nitrogen oxide concentration in the Chapelfield area has already fallen since 2013 after traffic changes.

A spokesperson for Norwich City Council said: 'The city council has a duty to monitor and report on air quality, and we have a detailed knowledge of the situation across the city.

'Working with partners, various actions have been taken to improve air quality in key areas, including those surrounding schools, working with colleagues within city and county council.

Figures show that these actions are making a difference, and we will continue to work together to make more improvements.'