Summary: Antonio Da Roza, Jessica Hefes

Originally reported: Blue Skies China

Date: 6/2/10

Originally: 06/03/07

Air pollutants connected to emergency hospital admissions [1]

A study by the Chinese University of Hong Kong has found significant association between daily emergency hospital admissions and the levels of five air pollutants: sulphur dioxide, nitrogen oxides, ozone, PM10 and PM2.5. For every 10mg/m3 increase in these pollutants, rates of hospitalization for chronic obstructive pulmonary disease increased from 0.7% to 3.4%. Ozone had the strongest effect on admissions, whilst sulphur dioxide, nitrogen oxides and ozone had stronger effects on admissions during the cold season.


  1. Air Pollution Exacerbates Pulmonary Hospital Admissions, Blue skies China, 06/03/07

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