While we’re benefiting from all this rain in London, which keeps air pollution at bay, I’ve been wondering about including pollution data in OpenStreetMap-based routing engines. The trouble is that I lack the technical skills to implement this, so I’m writing this post in the hope that somebody might be inspired to give it a go. Air pollution is the second biggest cause of premature deaths in the UK after smoking. Here’s a little league table of nasties taken from Department of Health data: Smoking – 87,000 premature deaths per year Air pollution – 29,000 Alcohol – 22,000 Obesity – 9,000 The main pollutants in cities are particulates (PM10, PM2.5), nitrogen dioxide (NO2) and nitrogen oxide (NO). Unlike the pea souper fogs of years gone by, these are invisible to the human eye but very deadly. They’re most concentrated on busy congested roads and around airports – so unsurprisingly in central London,…