Coarse Particles in Vancouver had Larger Effect on Elderly Hospital Admissions than Fine
A time-series study of nearly 9,000 adults over age 65 in Vancouver, Canada examined the relationship between hospital admissions for respiratory disease and daily measures of PM10, PM2.5, and PM10-2.5.
After adjustment for gaseous copollutants and meteorological variables, the study found that coarse particles have a larger effect on respiratory hospital admissions in the elderly than PM2.5.
Chen Y, Qiuying Y, Krewski D, Burnett RT, Shi Y, McGrail KM. The Effect of Coarse Ambient Particulate Matter on First, Second, and Overall Hospital Admissions for Respiratory Disease Among the Elderly. Inhalation Toxicology 2005; 17:649-655.
For a copy of the abstract click here.
