Using the neutron activation means studied the entire-element component and distribution of the atmosphere dustfall in the city of Tangshan. The results indicated that the main exceeding normal elements are Sr、Fe、Na...Using the neutron activation means studied the entire-element component and distribution of the atmosphere dustfall in the city of Tangshan. The results indicated that the main exceeding normal elements are Sr、Fe、Na、Ta etc. in 36 kinds of elements of dustfall; Some elements contents reflected more variations tendency in spring and winter and less in summer and autumn; The planar distribution tendency was identical with the space distribution of the pollution sources.展开更多
文摘Using the neutron activation means studied the entire-element component and distribution of the atmosphere dustfall in the city of Tangshan. The results indicated that the main exceeding normal elements are Sr、Fe、Na、Ta etc. in 36 kinds of elements of dustfall; Some elements contents reflected more variations tendency in spring and winter and less in summer and autumn; The planar distribution tendency was identical with the space distribution of the pollution sources.
