High Pollution 'Can Double Risk of Breast Cancer'
Byline: Daily Mail Reporter
TRAFFIC pollution can double a woman's risk of getting breast cancer, a study claimed yesterday.
Cases of the disease were 'clearly higher' in areas with increased levels of nitrogen dioxide, researchers said.
Women living in areas with the highest levels of air pollution were almost twice as likely to develop breast cancer, one of the study's authors said.
Mark Goldberg, from the Research Institute of the McGill University Health Centre in Canada, said: 'We've been watching breast cancer rates go up for some time.
'Nobody really knows why, and only about one-third of cases are attributable to known risk factors.
'We found a link between postmenopausal breast cancer and exposure to nitrogen dioxide, which is a marker for traffic-related air pollution.
'Across Montreal, levels of nitrogen dioxide (NO2) varied between five parts per billion to over 30 parts per billion,' he said.
'We found that risk increased by about 25 per cent with every increase of NO2 of five parts per billion. …