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- W2008944189 abstract "The measurement necessities for monitoring, evaluating and improving the quality of our environment are discussed in this paper. The National Bureau of Standards (NBS) environmental measurement program has led to the development, production and distribution of more than 75 standard reference materials (SRM's) for use in environmental chemical analysis. Among the techniques is one for standardizing measurements of polynuclear aromatic hydrocarbons (PAH's) which are associated with energy technologies including petroleum and shale oil production, coal liquefaction and gasification and pose a threat to water resources. The NBS also developed SRM 1643 to evaluate the accuracy of the trace element measurements in filtered and acidified fresh water. A hybrid method to identify and measure methylmercury, a toxic organometallic substance, was also produced. A new method was devised to separate and measure individual organic derivatives of tin and arsenic at trace concentrations in soil as well as in water. Several advances have been made in auto exhaust analysis and fuel economy ratings. An automated gas analysis system for certification of primary gas mixture SRM's, a long-wavelength acoustic flowmeter for measuring exhaust flow from the tailpipe of an automobile or truck, and a sulfur dioxide SRM were among the Bureau's achievements. Thermodynami data important to waste incinerator operators, basic research on the upper level atmosphere and basic data used as input by stratospheric pollution models were also developed." @default.
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- W2008944189 date "1979-06-01" @default.
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- W2008944189 title "KEEPING TABS ON TOXICITY" @default.
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