Table 5. Contribution(%) of surface PM and in-wax PM to total PM deposited on foliage of 5 species in the survey sites. Data are mean ± SD, n = 10 (4 months with 3 replicates in each).

Species	Month
	May.		Aug.		Nov.		Jan.
	sPM, %	wPM, %	sPM, %	wPM, %	sPM, %	wPM, %	sPM, %	wPM, %
Q. myrsinaefolia	68.2	31.8	57.8	42.2	63.8	36.2	71.1	28.9
Q. glauca	72.9	27.1	53.0	47.0	53.8	46.2	68.2	31.8
Q. salicina	71.2	28.8	54.6	45.4	66.7	33.3	76.0	24.0
C. japonica	57.9	42.1	49.9	50.1	65.5	34.5	77.1	22.9
Prunus x yedoensis	54.6	45.4	60.7	39.3	nd	nd	nd	nd
Average for species	65.0	35.0	55.2	44.8	62.5	37.6	73.1	26.9

Values in rows followed by different letters are significantly different (p<0.05).
Not determined in this year.