Study on the relation between Benzo (a) pyrene of the suspended matters and that of the falling matters in the atmosphere

Abstract

This paper describes the surveying Benzo (a) pyrene (hereafter abbreviated as BaP) of the suspended matters and the falling matters which were collected from the industrial downtown district and urban residential district of Kita-kyushu city in summer and winter from 1964 to 1965, and then the investigating on the relations between BaP of the suspended matters and that of the falling matters which were collected at the similar places and times.
The results are as follows.
1) The highly correlations were found between BaP of the suspeded matters and that of the falling matters in both seasons in case of collecting the dusts at the similar places and times (winter r=0.8016, summer r=0.8281).
2) In both cases (suspended matters' method and falling matters' method), BaP in this industrial city air in winter was more than that in summer.
3) In case of suspended matters, BaP in the industrial downtown district was more than that in the urban residential district in both summer and winter. And in case of falling matters, BaP in the former district was similarly more than that in the latter district in both seasons.