A bioaerosol is a term given to micro-organisms that have become suspended in the air due to the disturbance of organic matter. The most common workplace environment in which bioaerosols must be monitored is on composting sites, where site activity such as shredding can increase the number of bacteria and fungi present in the air downwind from the site of activity. Elevated levels of these organisms can pose a health risk to site workers and members of the public in the vicinity of the site. The Environment Agency requires sites to perform bioaerosol monitoring at least once per year for the following parameters:
Ductwork in mechanical ventilation systems can accumulate large deposits of dust from the air. These deposits of dust can have a range of implications including the impairment of proper system function, blockage of in-line air filters and potential health effects on occupants due to poor air quality. PVT (or Matched Weight Filter) samples may be taken to prove that a ventilation system does / does not require cleaning or may be taken to prove that a system clean has been effective. Biodet can perform PVT capsule analysis using calibrated analytic weighing scales to determine if dust levels are above or below the acceptable limits set in the CIBSE TR19 document. Results are typically available within 7 days of sample receipt. More information on the testing of building ventilation systems can be found at the following link – https://www.thebesa.com/besa-publication-details-non-member?id=7684513792166
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