pay retrofit costs so what can be done until the egg gets clean up barbara hoffman at university hospital dusseldorf says hiding in your apartment is not the solution up political activity physical activity whether it's running or cycling or whatever and it's one of the most important protective measures we know. your carry protects against a variety of diseases. and the positive effects far outweigh the damage caused by inhaling air pollutants in front of touched off a fat as of yet in any case it is definitely advisable to ride a bike instead of sitting in a car or about on fire and longer hope strasse but then you should avoid riding along main roads by taking side roads where pollution levels are lower. so. of course everyone can try to avoid exposure at peak traffic hours. but what you can't avoid is general exposure there we have no control over what we inhale and for. air pollution is rather like the radioactivity it's invisible and it takes decades before its effects show up. flights to measure air pollution have given physicist your slowly felt a different perspective. he and his colleagues