here's seb choudhury.cities isa the air quality in towns and cities is a huge problem. we are asking to people who live in bath, a cyclist and a taxi driver, to carry around one of these. to find out who is breathing in the west air. first the taxi driver, he will carry an air quality monitor in his cap for the next ten days and does not expect the results to be good. what you think aboutair the results to be good. what you think about air quality? in bath it is not very good. some people in this city cannot breathe proper air. and he is not wrong. we record high levels of small particles found in diesel fumes. 0n levels of small particles found in diesel fumes. on one occasion as high as those measured in beijing. why are they bad, well particular matter is small enough to go through oui’ matter is small enough to go through our noses and into our lungs where it can cause respiratory complaints. another particle is even smaller and can go through the lungs into the bloodstream and has been shown to be ass

here's seb choudhury.driver, to carry around one of these, to find out who's breathing in the worst air. first, kahlil who will carry an air quality monitor in the back of his cab. he's not expecting the results to be good. what do you think about air quality here? it's not very good in bath. it's not good at all. some people say they cannot breathe proper air. and he's not wrong. we record high levels of small particles called pm10s and pm2.5s found in diesel fumes. on one occasion they're as high as those measured in beijing. why are they bad? particulate matter known as pm10 is small enough to go through our noses into our lungs where it can cause respiratory complaints. the other one, pm2.5, is even smaller and can go through the lungs into the bloodstream and is associated with notjust respiratory conditions but cardiovascular conditions such as strokes and heart attacks. also measuring for us is adam reynolds, a self—confessed bike fanatic. the data from his monitor shows high levels of nitrogen diox