YouGov poll reveals high levels of concern over air quality, as Mayor's Office confirms every borough has illegal levels of pollution. The level of public support for bolder policies to tackle air pollution was underlined yesterday with the publication of a new poll showing 88 per cent of Londoners think air pollution is at 'crisis' levels across the capital. The YouGov survey of 1,000 Londoners, commissioned by the Greater London Authority, found two thirds of respondents think air quality is bad in their area and 72 per cent want government ministers to do more to tackle the problem. The results came on the same day as the Mayor's Office published a separate report confirming that every borough in the capital has recorded illegally high levels of air pollution in the last two years. The report added that 802 educational establishments, including 438 schools and 27 nurseries, are in areas of the capital that exceed legal air quality levels. London Mayor Sadiq Khan seized on the polling and report to step up his calls for the government to do more to tackle air pollution. "This polling is further proof that Londoners are rightly concerned about the toxic health crisis the filthy air in London has created," he said. "The message to Government is crystal clear. Londoners want them to step up to the plate and take urgent action." The move follows a letter earlier this week from the Healthy Air Coalition of NGOs to Chancellor Philip Hammond calling on him to increase vehicle excise duty (VED) for new diesel cars in next week's budget and use the proceeds to fund a diesel scrappage scheme. It also follows confirmation from Khan last week that a new 'Toxicity charge' of £10 will be levelled on the most polluting cars entering the capital from October 23rd. The Mayor's Office stressed that the new T-charge was part of a suite of measures to tackle air pollution, including increased investment in electric vehicle infrastructure and incorporating air quality into local planning measures. However, Khan said further support from the Westminster government was needed to tackle the problem. "I'm doing everything in my power to tackle the shameful state of our air quality and boroughs are making real progress on local measures," he said. "However, without adequate support from government Londoners will continue to be scared of the air they breathe. Now is the time for government to step up and deliver a national vehicle scrappage fund and the new Clean Air Act we desperately need." The government is working on a new national clean air plan in compliance with a court order, which is due to be unveiled in the coming months. Ministers have also argued that the government has stepped up investment in electric vehicle infrastructure and is working on plans for a series of new clean air zones across the UK. But critics have consistently argued these plans will not bring the UK into line with EU air quality rules without additional policy measures.