Which part of London? I used to commute through the fumes to Soho, by bike, taking approximately an hour each way. There have been other commutes, e.g. around

Which part of London? I used to commute through the fumes to Soho, by bike, taking approximately an hour each way. There have been other commutes, e.g. around the North Circular or straight up the A5 to Stanmore, however, I nowadays avoid central London due to the air quality. It is as simple as that, the air is not good. There is no way to effectively avoid this if you do need to actually get somewhere central. I believe that the traffic is manageable and not a problem so long as you like hi-viz and ride as per the Highway Code. If you do have to commute to central London then don't - get another job a bit further out and get your life back, and your health. Nowadays I get trains places once or twice a month but otherwise just cycle the river ('Thames') and other low pollution areas, e.g. Richmond Park. Also winds are prevailing one way due to how the earth spins, so make sure you live in the West of London and not the East. Outer London good, inner London = move!!!