National performance audit program: 1979 proficiency surveys for sulfur dioxide, nitrogen dioxide, carbon monoxide, sulfate, nitrate, lead and high volume flow

Technical Report · Wed Apr 01 04:00:00 EST 1981

OSTI ID:5876719

Bennett, B I; Lampe, R L; Puzak, J C

The Quality Assurance Division of the Environmental Monitoring Systems Laboratory, Research Triangle Park, North Carolina, administers semiannual Surveys of Analytical Proficiency for sulfur dioxide, nitrogen dioxide, carbon monoxide, sulfate, nitrate and lead. Sample material, simulating ambient air pollution samples as closely as possible, are furnished to participating laboratories. Surveys of hi-vol sample flow are conducted annually using a modified orifice. The various sample materials are monitored by the Quality Assurance Division to assure that samples are stable, of uniform composition and are representative of pollutant concentration levels encountered under field sampling conditions and that all materials conform to prescribed standards of accuracy. Sample materials are required to be similar enough to true air pollution matrices not to introduce unrealistic conditions of sample preparation or impose handling techniques that are not a part of the normal monitoring and analytical activity. A major survey objective is the assessment of routine analytical performance. After results are evaluated by the Quality Assurance Division, an individual report is promptly returned to each participant. This report contains a summary of survey results for the year 1979.

• Research Organization: Environmental Protection Agency, Research Triangle Park, NC (USA). Environmental Monitoring and Systems Lab.
• OSTI ID: 5876719
• Report Number(s): PB-81-239402
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL ANALYSIS
ELEMENTS
GAS ANALYSIS
LEAD
METALS
MONITORING
NITRATES
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION
SAMPLING
SULFATES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES