A new study has found strong evidence for a link between cleaning jobs and risk of developing asthma. Researchers at Imperial College London tracked the occurrence of asthma in a group of 9,488 people born in Britain in 1958. Not including those who had asthma as children, nine per cent developed asthma by age 42. Risks in the workplace were responsible for one in six cases of adult onset asthma – even more than the one in nine cases attributed to smoking, according to the analysis.
