The 2016 results from 83 airborne pollen monitoring sites throughout Japan have been compiled and analysed. The data for Cryptomeria japonica, and for Chamaecyparis obtusa, from the 70 sites selected among 83 sites for our study Table 1 include: A) observation date of maximum pollen dispersal, B) the maximum daily pollen count, and C) the total pollen count during the dispersal season. The airborne pollen monitoring data during 2016 are summarized as follows: 1) The western side of Japan, where there are 32 monitoring sites. Here the maximum daily pollen count value (1,520 grains/cm^2) for Cryptomeria japonica was recorded on March 5th in Nagato-City, Yamaguchi Prefecture. While for Chamaecyparis obtusa, 616 grains/cm^2 was recorded on April 6th in Tenri-City, Nara Prefecture. The highest maximum total pollen count value recorded for Cryptomeria japonica was 3,960 grains/cm^2 in ShinguCity, Wakayama Prefecture. While for Chamaecyparis obtusa the highest total pollen count value of 2,171 grains/cm^2 was recorded at Yonago-City, Tottori Prefecture. 2) In the eastern part of Japan, there are 38 monitoring sites. Here the maximum daily pollen count value (1,965 grains/cm^2) for Cryptomeria japonica was recorded on March 8th in Iwaki-City, Fukushima Prefecture. While for Chamaecyparis obtusa, 885 grains/cm^2 was recorded on March 8 at Mibumachi, Tochigi Prefecture. The highest values of the maximum total pollen count for Cryptomeria japonica was recorded as 12,860 grains/cm^2 at Sakado-City, Saitama Prefecture. While for Chamaecyparis obtusa the highest total pollen count value of 5,624 grains/cm^2 was recorded at Ohmeshi, Tokyo.
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