STUDIES OF RESPIRATORY DISEASES DUE TO AIR POLLUTION ON THE TOKYO-YOKOHAMA AREA
Abstract
To investigate air pollution respiratory diseases (especially T-Y asthma) among Japanese, a mass survey in the Niigata area and T-Y area was carried out. Subjects submitted for statistic analysis were 2825 in total. There were increased incidence of respiratory symptons such as chronic coughing, increased sputum production and throat irritation among the subjects who areliving in T-Y area. This incidence was highest in the native group of T-Y area and particularly high among smokers and subjects with allergic constitution. There were no increased incidence of air way obstructive diseases in T-Y area but group of subjects who were exposed to heavy air pollution tended to have low vital capacity. These results give the evidence that air pollution is harmful for respiratory tract. There was no definite evidence that respiratory sensitivity to inhaled acetylcholine in subjects in T-Y area was increased, in spite of the fact that asthmatic patients have significantly high sensitivity to acetylcholine. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 31, 1963
- Accession Number
- AD0432178
Entities
People
- Tatsushi Ishizaki
Organizations
- University of Tokyo