Emissions of metals, chromium and nickel species, and organics from municipal waste-water-sludge incinerators. Volume 2. Site 5 emission-test report: Hexavalent chromium method evaluation. Final report, 1989-91
At Site 5, three candidate sampling methods and two candidate analytical methods for hexavalent chromium were assessed. The conversion of hexavalent chromium (Cr (+6)) to other valence states of chromium during sampling and sample storage was of primary concern. Method 5-type samples and impinger train samples were collected by PEI Associates, Inc. Dilution train samples were collected bySouthern Research Institute. Method 5-type train samples were analyzed by Technology Applications, Inc.'s (TAI) staff under contract to EPA's Environmental Monitoring Systems Laboratory (EMSL) in Cincinnati, Ohio. Dilution train samples, Method 5-type samples, and impinger train samples were analyzed by Entropy Environmentalists, Inc. TAI used an ion chromatograph with post column reaction (IC/PCR) and inductively coupled argon plasmography/mass spectrometry (ICP/MS) to analyze the Method 5-type samples. A stable chromium isotope (63CR(+6)) spiked onto the Method 5 filter prior to sample collection was used to assess conversion of Cr(+6). The samples analyzed by Entropy were collected using a dilution train on an 8.5 in X 11 in glass fiber filter, a Method 5-type sampling train on an 82 mm quartz fiber filter, and an impinger sampling train with an alkaline impinger reagent, and spiked with native hexavalent chromium and a radioactively-labeled chromium isotope (51Cr(+6)). The samples were analyzed for hexavalent chromium by IC/PCR and for the radioactive isotopes by scintillation (gamma) counting. EMSL has not released the TAI data. The preliminary method evaluation testing demonstrated that all sampling methods had problems with conversion of hexavalent chromium.
- Research Organization:
- Entropy Environmentalists, Inc., Research Triangle Park, NC (United States)
- OSTI ID:
- 5459136
- Report Number(s):
- PB-92-151562/XAB; CNN: EPA-68-CO-0027
- Country of Publication:
- United States
- Language:
- English
Similar Records
Laboratory and field evaluations of a methodology for determining hexavalent-chromium emissions from stationary sources. Final report
Emissions of metals, chromium and nickel species, and organics from municipal waste-water-sludge incinerators. Volume 1. Summary report. Final report, 1989-91
Related Subjects
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION MONITORING
BETA DECAY RADIOISOTOPES
BIOLOGICAL MATERIALS
BIOLOGICAL WASTES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMATOGRAPHY
CHROMIUM
CHROMIUM 51
CHROMIUM ISOTOPES
COMBUSTION
COUNTING TECHNIQUES
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
EVEN-ODD NUCLEI
INCINERATORS
INTERMEDIATE MASS NUCLEI
ION EXCHANGE CHROMATOGRAPHY
ISOTOPE APPLICATIONS
ISOTOPES
MASS SPECTROSCOPY
MATERIALS
METALS
MONITORING
MUNICIPAL WASTES
NUCLEI
OXIDATION
RADIOISOTOPES
SCINTILLATION COUNTING
SEPARATION PROCESSES
SEWAGE
SEWAGE SLUDGE
SITE SURVEYS
SLUDGES
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
TRACER TECHNIQUES
TRANSITION ELEMENTS
WASTES