Abstract
Air pollution by cadmium, zinc, lead and copper dusts from the Aizu Refinery was investigated by measuring air quality and by checking the cadmium content in rice plants in relation to the time of absorption of Cd from the air. The are was measured at 13 locations involving various directions and distances; samples were taken at the end of every month and analyzed by spectrophotometry. During the rice culture period of 4 mo, the northwestern and eastern sampling locations at a distance of 1.5 km each had heavy settling particles, ranging between 5 and 9 kg/sq km. The ratios of heavy Cd, 1; Cu, 2.1; Z, 125; and lead, 15.5. To the east, the ratios were Cd, 1; Cu, 2.1; Z, 130; and Pb, 12.1. There was a close correlation between the Cd and Cd content in approximately 20% between planting of seedlings and the first ear formation; 8% during the early stage of ear formation; and 72% during the ripening stage. Pollution from the refinery should be controlled particularly during the 45 days of maturity of rice plants.
Citation Formats
Tatekawa, H, Kanno, T, Saito, S, and Tachiya, H.
Forecasting of cadmium in rice plants by air pollution.
Japan: N. p.,
1973.
Web.
Tatekawa, H, Kanno, T, Saito, S, & Tachiya, H.
Forecasting of cadmium in rice plants by air pollution.
Japan.
Tatekawa, H, Kanno, T, Saito, S, and Tachiya, H.
1973.
"Forecasting of cadmium in rice plants by air pollution."
Japan.
@misc{etde_7188964,
title = {Forecasting of cadmium in rice plants by air pollution}
author = {Tatekawa, H, Kanno, T, Saito, S, and Tachiya, H}
abstractNote = {Air pollution by cadmium, zinc, lead and copper dusts from the Aizu Refinery was investigated by measuring air quality and by checking the cadmium content in rice plants in relation to the time of absorption of Cd from the air. The are was measured at 13 locations involving various directions and distances; samples were taken at the end of every month and analyzed by spectrophotometry. During the rice culture period of 4 mo, the northwestern and eastern sampling locations at a distance of 1.5 km each had heavy settling particles, ranging between 5 and 9 kg/sq km. The ratios of heavy Cd, 1; Cu, 2.1; Z, 125; and lead, 15.5. To the east, the ratios were Cd, 1; Cu, 2.1; Z, 130; and Pb, 12.1. There was a close correlation between the Cd and Cd content in approximately 20% between planting of seedlings and the first ear formation; 8% during the early stage of ear formation; and 72% during the ripening stage. Pollution from the refinery should be controlled particularly during the 45 days of maturity of rice plants.}
journal = []
volume = {8:3}
journal type = {AC}
place = {Japan}
year = {1973}
month = {Oct}
}
title = {Forecasting of cadmium in rice plants by air pollution}
author = {Tatekawa, H, Kanno, T, Saito, S, and Tachiya, H}
abstractNote = {Air pollution by cadmium, zinc, lead and copper dusts from the Aizu Refinery was investigated by measuring air quality and by checking the cadmium content in rice plants in relation to the time of absorption of Cd from the air. The are was measured at 13 locations involving various directions and distances; samples were taken at the end of every month and analyzed by spectrophotometry. During the rice culture period of 4 mo, the northwestern and eastern sampling locations at a distance of 1.5 km each had heavy settling particles, ranging between 5 and 9 kg/sq km. The ratios of heavy Cd, 1; Cu, 2.1; Z, 125; and lead, 15.5. To the east, the ratios were Cd, 1; Cu, 2.1; Z, 130; and Pb, 12.1. There was a close correlation between the Cd and Cd content in approximately 20% between planting of seedlings and the first ear formation; 8% during the early stage of ear formation; and 72% during the ripening stage. Pollution from the refinery should be controlled particularly during the 45 days of maturity of rice plants.}
journal = []
volume = {8:3}
journal type = {AC}
place = {Japan}
year = {1973}
month = {Oct}
}