Quality control procedures for the measurement of hazardous air pollutants
- Roy F. Weston, Inc., West Chester, PA (United States)
The Clean Air Act Amendments of 1990 (CAAA) have provided an impetus for the identification and quantification of a wide range of air toxic compounds. The US Environmental Protection Agency (EPA) has established specific procedures for the sampling and analysis of criteria and hazardous pollutants, however, many of the HAPs listed in Title 3 of the CAAA do not have EPA validated procedures. As a result of the increased amount of testing being performed, there is a need to familiarize affected sources with quality control (QC) measures that should be included in emission testing programs. This paper identifies the types of QC procedures that should be considered for each field sampling program including: presampling in-house preparation; facility preparation; sample collection; laboratory analysis and data handling. The primary objective of the paper is to provide a general overview of the quality control requirements defined in many of the manual EPA methodologies currently in use to characterize HAP emissions. Definitions, guidance on the interpretation and examples of the types of quality control samples that should be collected and analyzed during field sampling programs are provided. Information relevant to the importance of method detection limits and recommendations for treatment of environmental measurements that result in ``less than`` values are also discussed.
- OSTI ID:
- 257180
- Report Number(s):
- CONF-950952--
- Country of Publication:
- United States
- Language:
- English
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