LONDON Authority candidates have united in calling for the proposed expansion of Edmonton incinerator to be reviewed.

Their comments follow assertions that fumes from the incinerator will gather directly over the site of the planned international athletic stadium at Picketts Lock.

And the four main candidates standing for election in Enfield to the Greater London Authority ? Peter Budge (Green), Nicky Gavron (Labour), Peter Forrest (Conservative) and Sean Hooker (Liberal Democrat) ? have voiced their doubts over the expansion.

Ms Gavron called on the Secretary of State for Trade and Industry, Stephen Byers, to postpone a decision on whether to give the scheme final approval.

She said: 'It would not be in London's interests if the proposals to expand the incinerator jeopardise the stadium at Picketts Lock.

'If London gets serious about recycling waste it will not need to expand the incinerator.'

Peter Forrest said: 'The proposed extension is too big and it's in the wrong place.

'The danger is that it will be so voracious for waste that it will make recycling uneconomic.

'And having an Olympic running track next to a chimney belching fumes is not the best way to show off Britain in the 21st century.'

An environmental impact study commissioned by LondonWaste Ltd, which runs the plant, points out that prevailing winds will tend to blow fumes from the proposed chimney over the planned stadium site.

It reads: 'Depending on the wind speed, the point of maximum impact will lie somewhere between 500m and 2,000m from the stack.

'The location of this maximum point of impact is approximately 1,200m to the north-east of the plant, or in the William Girling Reservoir.'

A spokeswoman for LondonWaste said the extension would 'pose no threat to the environment or human health'.

She said: 'The results of the study show that there will be insignificant change in the current ground level concentration of pollutants. '

She added that the extension would comply with UK and European law on waste incineration and air pollution.

This view was supported by the Lee Valley Park Authority and Enfield Council, both of whom are backing the stadium plan.

A spokesman for the council said it had been assured that standards on pollution would be met but it would still continue to monitor air quality.

The park authority said it had taken the study into account and found the stadium site to be 'perfectly safe'.

'It's better by far than Los Angeles in the past and Athens in the fututre as an Olympic venue,' said a spokesman.