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Third Heathrow airport runway 'could be built over M25'

A third runway at Heathrow could be built over the M25, the Transport Secretary has said.

It comes after Theresa May's decision to back Heathrow expansion plunged the Conservatives into turmoil, as Cabinet ministers hit out at the move and a prominent MP quit.

Tory supporting councils are poised to support legal action challenging the plans and Foreign Secretary Boris Johnson insisted the scheme was "undeliverable".

Conservative bosses were forced to announce the party would not fight the by-election triggered by Zac Goldsmith in protest over the third runway.

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May insists Heathrow will meet air quality standards

Theresa May has insisted a third runway at Heathrow Airport will meet the required air quality standards.

Responding to concerns raised at Prime Minister's Questions by Tania Matthias, the Tory MP for Twickenham, Mrs May said: "The government looked very closely at this issue of air quality and environmental impact of all three schemes that were proposed by the Airports Commission. We took extra time to look at those. We wanted to look more particularly at the air quality issues.

"The evidence shows that air quality standards can be met as required by all three of the schemes including the north west runway at Heathrow.

"But... the issue is about more than airports, because the question of air quality is also about road transport and that's why we are looking to do more in relation to what we're doing for air quality. It's why, for example I'm pleased to see that we're at such a leading edge in the provision of electric vehicles."

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