| pubmed-article:21459856 | pubmed:abstractText | Time series studies have shown adverse effects of outdoor air pollution on mortality and hospital admissions in patients with chronic obstructive pulmonary disease (COPD) but panel studies have been inconsistent. This study investigates short-term effects of outdoor nitrogen dioxide, ozone, sulfur dioxide, particulate matter (PM(10)) and black smoke on exacerbations, respiratory symptoms and lung function in 94 patients with COPD in east London. | lld:pubmed |
