Quality Assurance Samplers (Q/A-1 and Q/A-2)

To ensure the quality of data collected, the ESER Program uses a variety of Quality Assurance/Quality Control methods (QA/QC).  One of those methods involves the use of duplicate samplers. Two duplicate samplers (Q/A-1 and Q/A-2) are currently located next to our routine samplers at Howe and Arco.  For each pair of co-located samplers, one is designated as the sampler which will be used to report air quality for the site and the other is designated as the duplicate sampler. Samples from these duplicate samplers are collected in immediately after collecting the routine sample, using identical techniques.  Duplicate samples are sealed, handled, stored, shipped and analyzed in the same manner as the primary sample.