A group of parents in Hackney have started a new campaign to get hybrid and hydrogen buses for the area. Please sign our online petition www.ilikecleanair.org.uk We are working with local schools to measure nitrogen dioxide levels on streets around the schools. We used 'diffusion tubes' which were up for four weeks in October. The results from our initiative have just arrived. It is not looking good. More detailed results will be posted soon. In the meantime please check out our website and sign the petition. Thank you!