AIR POLLUTION OF KAGOSHIMA CITY AND SAKURAJIMA FROM THE VOLCANIC ASHES ERUPTED FROM MT.SAKURAJIMA (Part 2) : Investigation from April 1, 1979 through March 31, 1980

Measurements of the amount of falling dust which consisted essentially of the volcanic ashes and rain collected in a British standard deposit gauge, and the sulfur oxide adsorbed onto PbO_2-candle were made every month at twenty locations in Kagoshima city and Sakurajima county. A detailed analysis was also done for the falling dust and rain. The results obtained showed that the amount of the falling dust at Sakurajima county in this period was reduced to about on-half the amount in the last period. Maximum value of the sulfur oxide adsorption was 2.42mg/100cm^<2>. day which was detected at Sakurajima Hospital in May