IC Sentinel

The following references provide insight to the various needs for Indoor Environmental Monitoring (IEQ):


docCDC Guidelines for Environmental Infection Control in Health-Care Facilities 


pdfImproving Operating Room Contamination Control


jpgFeasibility of Continuous Sound and Light Recording in an Oncologic ICU


icon Reducing HAIs Through Continuous PM2.5 Particle Counting


icon Particle Counting and Microbiological Air Sampling: Results of the Simultaneous Use of Both Procedures in Different Types of Hospital Rooms

Armadans-Gil L1, Rodríguez-Garrido V, Campins-Martí M, Gil-Cuesta J, Vaqué-Rafart J.


In order to assess the relationship between the concentrations of airborne fungi and particles, particle counting was combined with fungal air sampling in several rooms of a hospital.


Concentrations of ≥0.5μm particles (P05) and ≥1μm particles (P1) were measured using a particle counter; fungal air sampling was performed with volumetric air samplers, which impacted air on Rodac plates with Sabouraud chloramphenicol agar. Particle counts were categorised according to ISO 14644-1 standard cut-off points; their association with fungal detection was assessed with Fisher's exact test.


Forty-two simultaneous samplings were carried out: 24 in operating rooms, 13 in rooms for burns or haematology patients, 3 in pharmacy clean rooms, and two in other procedure rooms. Filamentous fungi were recovered in 5 samples, which also had higher particle counts. No fungi were detected in 12 samplings with both P05 and P1 concentrations below the maximum for class 6 clean rooms; 4 of 7 samplings with both concentrations within the range for class 8 clean rooms were positive for fungi. The association between fungal detection and higher particle counts was statistically significant, both for P05 (p=.004) and P1 (p=.003). There was a partial overlap between the concentrations of particles of samplings which were positive or negative for fungi.


There is a relationship between the concentrations of P05 and P1 and airborne fungi in hospital rooms. When both P05 and P1 concentrations are below the maximum for class 6 clean rooms, a negative fungal detection can be predicted.

Copyright © 2011 Elsevier España, S.L. All rights reserved.