Recommendations

The results from this evaluation are the most complete the center has developed for determining the accuracy of real-time instruments in a field situation. Results from the various real-time instruments should be corrected based on these results to better estimate the particulate concentrations from burning biomass. These results are from one particular region and vegetation type. Results may differ if the vegetation type or moisture content is significantly different than the conditions during these fires. Other factors such as relative humidity, background particulate concentrations, and fuel moisture may influence the instruments’ mass concentration estimations. Whenever possible, collocate an EPA federal reference method gravimetric sampler with your instrument to establish correction values to meet your conditions.

None of the instruments was designed as a complete particulate sampler nor should any of these instruments be expected to replicate a gravimetric device.

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since June 26, 2003