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Levels of air pollution were measured on journeys made to Great Ormond Street Hospital on different modes of transport. The aim was to be able to give patients – in particular those with respiratory conditions – advice on which routes and modes of transport are likely to be the least / most polluted.
The monitoring equipment measured levels of black carbon every minute on journeys from three stations (Waterloo, Kings Cross and Euston) using different forms of transport (walking, taxi, tube and bus).
You can read the findings in the report which you can download below. Please note that the number of journeys by each mode of transport that were measured were limited (about 2 or 3 per station for each mode), so the results should be viewed with caution.