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Performance of sulfur dioxide passive monitors
American Industrial Hygiene Association Journal
|October 1, 1985
Summary
DuPont Pro-Tek badges and REAL BioBadges demonstrated reliable performance for sulfur dioxide (SO2) monitoring. However, MSA dosimeters were unsatisfactory, and 3M monitors were withdrawn during testing.
Area of Science:
- Environmental Science
- Analytical Chemistry
- Occupational Health
Background:
- Passive samplers are crucial for monitoring sulfur dioxide (SO2) in various environments.
- Evaluating the performance and reliability of commercial SO2 passive monitors is essential for accurate exposure assessment.
Purpose of the Study:
- To assess the performance and reliability of four commercial sulfur dioxide (SO2) passive monitors.
- To compare their accuracy, precision, capacity, stability, and recovery under various conditions.
Main Methods:
- Tested DuPont Pro-Tek C-20, MSA Vaporgard, REAL BioBadges, and 3M Nutshell monitors.
- Evaluated factors including exposure time, concentration, humidity, temperature, and chemical interference.
- Assessed analytical recovery and stability of collected samples.
Main Results:
- DuPont Pro-Tek badges met all performance criteria.
- REAL BioBadges showed satisfactory performance, with noted instability in stored SO2/tetrachloromercurate complex.
- MSA dosimeters exhibited unsatisfactory performance; 3M monitors were withdrawn by the manufacturer.
Conclusions:
- DuPont Pro-Tek badges are a reliable option for SO2 passive monitoring.
- REAL BioBadges require further investigation regarding sample stability for consistent SO2 monitoring.
- MSA dosimeters are not recommended for sulfur dioxide (SO2) air monitoring based on performance evaluations.