A plan of the comprehensive study on indoor pollution and its health effects by the Aichi Prefecture, Japan.

In order to study the level and nature of the indoor pollution and its possible health effect the Department of Public Health of the Aichi Prefecture in Japan is planning to conduct a comprehensive study on indoor pollution. An outline of this study is presented in this report. The study will consist of measurements of the indoor pollution and health surveys for a sample of 10 large buildings and 75 houses involving 2,000 persons for the former and 1,000 three year old children and their mothers for the latter. The major survey items on the indoor pollution are measurements of suspended particles, CO, CO2, NO2, formaldehyde, falling and floating bacteria and fungi, mutagenicity, types of air cleaners, air conditioners and ventilators, and the number of smokers etc. The major health survey items are a questionnaire survey on respiratory diseases, pulmonary function tests, chest X-ray test, and measurement of urine hydroxyproline concentration. This comprehensive study on indoor pollution will be conducted for 5 years beginning the fiscal year 1984.