2024-03-29T00:47:47Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00006899
2022-12-15T03:40:07Z
176:177:204:205
453:456
Environmental mineralogy on fine grained minerals and particles in acid rains at the Niigata district
Environmental mineralogy on fine grained minerals and particles in acid rains at the Niigata district
Sato, Koichi
Akai, Junji
Konishi, Hiromi
acid rain
small solid particles
TEM
AEM
mullite
Niigata
environmental mineralogy
Acid rain contains small solid particles, which may suggest the origin of the pollution of acid rain or polluted air. Fine mineral grains and solid particles in the acid rains which were collected at the Niigata district have been examined from the standpoint of mineralogy using TEM-AEM method. Large amounts of fine grained minerals or materials in acid rains were found and identified. They were classified as artificial and natural types , and into soluble and insoluble types in water. Examples of the most characteristic type are mullite and A1 Si spherules. Mullite and "sulphate" may suggest their pollution origin. Some another soluble sulphates , such as thenardite and aphthitalite, may also correspond to strong acidity and/or polluted rain.
新潟大学理学部
1995-03
eng
departmental bulletin paper
http://hdl.handle.net/10191/47811
https://niigata-u.repo.nii.ac.jp/records/6899
AA00836134
03695638
Science reports of Niigata University. Series E, (Geology and mineralogy)
Science reports of Niigata University. Series E, (Geology and mineralogy)
10
1
20
https://niigata-u.repo.nii.ac.jp/record/6899/files/10_1-20.pdf
application/pdf
8.5 MB
2019-08-06