The DAPPLE Project (Dispersion of Air Pollution and its Penetration into the Local Environment) was a four-year research project, funded by the UK Engineering and Physical Sciences Research Council. It involved a consortium of six universities between 2002 and 2006. Field work was based at a site at the junction of Marylebone Road and Gloucester Place in central London.
As part of the project a study was designed to measure exposure to air pollution during transportation and looked at five transport methods for travelling across London. It was carried out by a team from Imperial College London and the Health and Safety Laboratory, Buxton co-ordinated by Dr Surbjit Kaur.
The results, published in the journal Atmospheric Environment,[1] showed that the level of pollution that people are exposed to differs according to the mode of transport that they use.[2] The most risky method of transport was the back seat of a cab, followed by travelling by bus, cycling, walking, with a private car exposing people to the lowest amount of pollution.[3]