Effect on lung defences and association with lung disease
| ENVIRONMENTAL FACTOR | LUNG DISEASE |
| Ozone | Asthma |
| Increased respiratory mortality | |
| Nitrogen dioxide | Exacerbation of respiratory disease |
| Particulate matter | Exacerbation of COPD |
| Exacerbation of allergies and asthma | |
| Increased hospital admission | |
| Increased respiratory mortality | |
| Sulphur dioxide | Exacerbation of asthma |
COPD: chronic obstructive pulmonary disease.