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MerPAS - Background Outdoor Ambient Air Sampler
The MerPAS® sampler fitted with the white body diffusive barrier is best used for sampling outdoor ambient air of low to intermediate mercury concentrations (0-50 ng/m3). With the high trapping capacity of the MerPAS® substrate, the sampler may be deployed for intervals from 1 week up to 1 year. With air concentrations of 50 to 1000 ng/m3, the sampler can be deployed for time intervals of less than one week.
For general guidelines on the appropriate MerPAS® sampling configuration, see the Estimated Sampling Intervals table in the attached document. For more information or for assistance with analysis of MerPAS® samples, contact us at our MerPAS@tekran.com email address.
- Remote locations with no power access
- Fenceline studies
- Upwind/downwind of point sources
- Gradient mapping to characterize contamination
- Border intrusion characterization
- Remote locations (no power)
- Urban networks
- Identifying and mapping hot spots
- Artisanal gold mining exposure
- Community exposure monitoring
- Remediation site investigations
- Indoor spill cleanup and monitoring
- Personal exposure for industry, schools, workplace & homes
- Area source emission estimates
- No power or infrastructure required
- No technical skill needed for deployment & retrieval
- Multiple mounting options
- Low cost long-term integrated sampling
- Exceptionally wide application range (0.5 ng/m3 to 1 mg/m3)
- Wide range of exposures intervals: hours to one year deployment time
- Immune to wind and temperature effects
- Use of well-known and patented radial diffusive barrier
- Highly tested and characterized
Tekran is able to offer both the sampler and analysis as a complete package. The MerPAS carbon-based sorbent has a well-defined particle size that makes it well suited for direct thermal analysis using EPA Method 7473. Alternatively, the carbon may be analyzed by traditional wet chemical techniques such as EPA Method 1631. If analytical services are needed, contact Tekran or your Tekran representative for analysis options.
The MerPAS sample kit includes the sample media and jar sealed tightly with a plastic lid. A second screened lid is included for use during deployment. Each sample jar is labeled with a weather-proof sticker for recording site and sample collection information, and a barcode for reliable sample tracking. The sample kit contains additional items needed for handling, mounting and return shipping. It is highly recommended to mount the MerPAS on the reusable mounting brackets shown above.
