Air pollution in Tajimi City was obserbed by the filter paper method at five poins from Aug. 1963 to Jul. 1964. It was found that the highest value of sulfer oxide was investigated at Takiro-cho, and the value range was 0.22-0.72mg SO_3/day/100cm-^2 and the mean value was 0.45mg SO_3/day/100cm^2. About the nitrogen oxide, the highest value was investigated at Hirokoji, commercial area, a lot of cars running. The range value was 0.040-0.120mg NO_2/day/100cm^2 and the mean value was 0.077mg NO_2/day/100cm^2
