OBSERVATIONS AND ANALYSIS OF MERCURY IN THE TOP SOIL WITHIN A 100-METER RADIUS OF A CHLORALKALI PLANT IN NORTHER KAZAKHSTAN USING EPA METHOD 7473. Draft Method 1630. determination of mercury by cold-vapor atomic absorption (cvaa) (epa/sw-846 methods 7000a/7470a/7471a) contents 1.0 scope and application* 2.0 method summary 3.0 sample preservation, containers, handling, and storage 4.0 interferences and potential problems 5.0 equipment/apparatus 6.0 reagents* 7.0 procedures 7.1 glassware preparation Methods 245.1 and 245.2 were approved by EPA in 1974 and can achieve measurement of mercury down to 200 parts per trillion (ppt). Mercury is typically calibrated over a range of 0.2 - … The purpose of the Demonstration was to collect reliable performance and cost data for the DMA-80 and four other field measurement devices for mercury … 136: Method 245.1, Method 245.2, and Method 1631E. Milestone's Direct Mercury Analyzer (DMA-80) was demonstrated under the U.S. Environmental Protection Agency Superfund Innovative Technology Evaluation Program in May 2003 at the Oak Ridge National Laboratory (ORNL) in Oak Ridge, Tennessee. Methyl Mercury Additionally, EPA approved Method 1631 Revision E in 2002. These procedures may be used in conjunction with EPA Method 1631B: Mercury in Water by Oxidation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry for determination of mercury in tissue, sludge, sediment, soil, industrial samples, and certified reference materials. Randall*, P, M Engle, P E. Grimmett, AND M. A. llyushchenko. EPA method 1631 or EPA 245.7 allow for detection of low level mercury in water and in soil. Appendix to Method 1631 Total Mercury in Tissue, Sludge, Sediment, and Soil by Acid Digestion and BrCl Oxidation. U.S. EPA (U.S. Environmental Protection Agency). U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-03/148 (NTIS PB2005-100119), 2004. Teklab is a NELAP accredited environmental testing laboratory that performs low level mercury (Hg) testing in wastewater effluent, groundwater or special waste samples. Because there is no sample dissolution required, this novel approach can determine the total mercury content of a soil or sediment sample in less than five minutes, which is significantly faster than the traditional wet chemical reduction method. Mercury. Other matrices (e.g., tissues, oils) may be requested by Modified Analyses. These procedures may be used in conjunction with EPA Method 163 IB: Mercury in Water by Oxidation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry for determination of mercury in tissue, sludge, sediment, soil, industrial samples, and certified reference materials. 2001b. The Determination of Mercury in Soil and Water According to U.S. EPA SOW 846 & Method 7473 by Thermal Decomposition, Amal-gamation and Cold Vapor Atomic Absorption APPLICATION NOTE #1085 INTRODUTION The accurate determination of mercury in soils and waters is critical to the remediation of contaminated sites. Billets, S N., J. Nicklas, AND J. Evans. The method for the analysis of mercury in water, soil, and TCLP/SPLP leachate samples by CVAA is based on EPA methods SW-846 7470A and 7471B. 2001a. U.S. EPA (U.S. Environmental Protection Agency). EPA-821-R-01-01 January 2001. mercury (Hg) in solid and semi-solid sample matrices. For mercury, there are three methods commonly used in the NPDES program that EPA has approved under Part . detection by atomic absorption described in EPA Method 7473 and ASTM Method 6722-01. Atomic Absorption Presented at 7th International Conference on Mercury as a Global Pollutant, Ljuvljana, Slovania, 6/27-7/2/04. 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