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	1.	Heavy metal transport and behavior in the lower Columbia River, USA. [electronic resource] by Johnson, Vernon G Peterson, Robert E Olsen, Khris B Producer: 20060929 In: Environmental monitoring and assessment vol. 110 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Measurement of helium isotopes in soil gas as an indicator of tritium groundwater contamination. [electronic resource] by Olsen, Khris B Dresel, P Evan Evans, John C McMahon, William J Poreda, Robert Producer: 20060626 In: Environmental science & technology vol. 40 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Rapid extraction and assay of uranium from environmental surface samples. [electronic resource] by Barrett, Christopher A Chouyyok, Wilaiwan Speakman, Robert J Olsen, Khris B Addleman, Raymond Shane Producer: 20180124 In: Talanta vol. 173 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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