Introduction: Ensuring air quality in operation theatres is of paramount importance to prevent surgical site infections. Microbiological commissioning number new our hospital, has been a challenging, yet also rewarding experience staff. Methodology: A total 19 including orthopaedic, neurosurgical, and cardiac associated sterile areas were evaluated. Air sampling was followed by high level clean...

Assessment of inhalable dust exposure requires reliable sampling methods in order to measure airborne inhalable particles' concentrations. Many inhalable aerosol samplers can be used but their performances widely vary and remain unknown in some cases. The sampling performance of inhalable samplers is strongly dependent on particle size and ambient air velocity. Five inhalable aerosol samplers h...

Detection of Salmonella enteritidis in the environment of commercial laying hens is critical for reducing the production of contaminated eggs by infected flocks. In the present study, an inexpensive and portable electrostatic air sampling device was used to collect S. enteritidis in rooms containing experimentally infected laying hens. After hens were orally inoculated with a phage type 13a S. ...

This paper presents the exact method for radon equilibrium determination by gamma spectrometry measuring of radon progeny concentrations in the air. The method is based on simultaneous sampling of air through the filter paper and alpha spectrometry measurement of radon activity concentration in the air. This paper derived a mathematical formula to calculate the initial concentrations of radon p...

This literature review deals with air handling in controlled environments in the food industry. The concern to determine the importance of the airflow as a possible source of contamination is growing, because the airborne dust particles can introduce foreign matter including microbial contaminants into the products produced. The following criteria should be used to determine a sampling strategy...

To the Editor—Bone marrow transplant patients are highly susceptible to airborne infections, which are mainly due to opportunistic microorganisms." Guidelines for the proper design of hospital rooms and heating, ventilation, and airconditioning (HVAC) systems have been published. Their aim is to control the concentration of airborne particles and their deposition onto surfaces, minimizing their...

Volatile organic compound (VOC) data that had already been collected using EPA method TO-15 at four different sites under regulatory scrutiny (a school, strip mall, apartment complex, and business/residential neighborhood) were evaluated to determine whether the source of indoor air benzene was outdoor air or vapor intrusion from contaminated soil. Both the use of tracer organics characteristic...

The main purpose for this study was to monitor ambient air particles and metallic elements (Mn, Fe, Zn, Cr, and Cu) in total suspended particulates (TSPs) concentration, dry deposition at three characteristic sampling sites of central Taiwan. Additionally, the calculated/measured dry deposition flux ratios of ambient air particles and metallic elements were calculated with Woods models at these...

A one hour integrated flask sampling system to collect air in automated NOAA/ESRL 12-flask packages is described. The integrating compressor system uses a mass flow controller to regulate the flow of air through a 15 l volume, thus providing a mixture of air collected over an hourlong period. By beginning with a high flow rate of 3.8 standard liters per minute and gradually decreasing the flow ...