カゴシマシ オヨビ サクラジマ ノ タイキ オセン (コウバイ) チョウサ (ダイ1ポウ) : ショウワ 53ネンド チョウサ ホウコク

Measurements of amount of falling dust which consisted essentially of the volcanic ashesand rain collected in a British standard deposit gauge, and sulfur oxide adsorbed onto PbO_2-candle were made every month at twenty locations in Kagoshima-city and Sakurajima.A detailed analysis was also done for the falling dust and rain. The results obtained showed that enormous amount of falling dust was detected at Sakurajima, especially at Sakurajima middle school (18810 ton/km^2 ･ month in August), and thatthe amount of sulfur oxide adsorbed depended strongly on time and the location. Maximumsulfur oxide adsorption (192mg/100cm^2 ･ day) was found at Sakurajima Hospital in May