Analysis of radioactive manganiferous nodules from Tanokami, Japan

Characteristic black nodules have been retrieved in 1922 from the bed of the Kichijo River, that runs along the Tanakamiyama mountain in the Oni Province and ends into Lake Biwa in Japan. Their radiocativity has been studied along with that of crusts of similar nature found covering rock formations in the vicinity overlooking the stream. The high content in radium observed may be due to the high uranium content of the granite host rock typical of the Tanakamiyama formation.

Stability of Cs-Ionsiv in Portland cement blends for radioactive waste disposal

The suitability of Portland cement blends for encapsulation of Cs-Ionsiv in a monolithic wasteform was investigated. No evidence of reaction or dissolution of the Cs-Ionsiv in the cementitious environment was found by scanning electron microscopy and X-ray diffraction. However, a small fraction (≤1.6 wt%) of the Cs inventory was released from the encapsulated Ionsiv during leaching experiments carried out on hydrated samples. Cs release was enhanced by exchange of K and Na present in the cementitious pore water. Cement systems lower in K and Na, such as slag based blends, showed lower Cs release than the fly ash based analogues. © 2010 Materials Research Society.

Critical review of estimating benefits of air and water pollution control /

Contract no. 68-01-2821.

Demonstration of nonpoint pollution abatement through improved street cleaning practices /

Mode of access: Internet.

National accomplishments in pollution control, 1970-1980 : some case histories /

Mode of access: Internet.

Environmental pollution control alternatives : drinking water treatment for small communities.

Mode of access: Internet.

Perspectives on nonpoint source pollution : proceedings of a national conference, Kansas City, Missouri, May 19-22, 1985.

Mode of access: Internet.

Groundwater quality monitoring of Western oil shale development : identification and priority ranking of potential pollution sources /

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Assessment of rural nonpoint source pollution : a model based on the Universal soil loss equation /

Mode of access: Internet.