Very much down. Everyone gets pollution, but cyclists' air intakes are further above vehicle exhaust that passengers and pedestrians. London's black snot is your filters working!
As for incidents, the risk is offset by health benefits. Last time I checked it was approx 1 serious incident per 100,000 miles ridden (which is much more than the lifetime of most riders).
As for incidents, the risk is offset by health benefits. Last time I checked it was approx 1 serious incident per 100,000 miles ridden (which is much more than the lifetime of most riders).