Laboratory competence for bioaerosol measurement: development of a protocol for data quality control
Keywords:Bioaerosol measurements, statistical reliability, laboratory personnel competence
Aim of this work is to present the scheme for laboratory competence assurance and data quality control performed by Italian Workersâ€™ Compensation Authority (INAIL) for bioaerosol measurements in workplaces. The sampling method using impactors and contact agar plates is adopted and the control of expertise both in coloniesâ€™ counting and resultsâ€™reporting performed through periodic session carried out by the laboratory personnel. This allows to determine training skills of the participants. The data collected by counting the same test-agar plates by different participants are statistically analyzed making an evaluation of uncertainty by the Lexis index after doing a test approach to the Poisson distribution.
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