Quantitation of free-living amoebae and bacterial populations in eyewash stations relative to flushing frequency.
This study investigated the concentration of amoebic and bacterial populations in eyewash station water relative to various flushing regimens.
Amoebae concentrations averaged approximately 200 amoebae/100 mL in 13 of 15 stations positive for amoebae and consisted of Hartmannella and Acanthamoeba.
Bacterial concentrations ranged from 10° to more than 105 colony forming units per mL.
Amoebic concentrations differed notably between stations located in Buildings X and Y (p<0.0001).
Further study indicated that removal of diffusing screens did not substantially change (p>0.05) the concentration of amoeba.
Amoebic and bacterial concentrations temporarily decreased with the various flushing regiments tested.
Lower amoebic concentrations were not sustained by a weekly 3-minute or a monthly 1-minute flushing regimen.
However, weekly 3-minute flushes appeared to be more effective in maintaining lowered bacterial concentrations (p<0.0001).
Mots-clés Pascal : Dispositif sécurité, Oeil, Lavage, Eau, Vidange, Contamination biologique, Microorganisme, Bactérie, Parasite, Réservoir eau, Lieu travail, Amoeba, Heterolobosea, Protozoa, Fungi, Thallophyta
Mots-clés Pascal anglais : Safety device, Eye, Washing, Water, Draining, Biological contamination, Microorganism, Bacteria, Parasite, Water tank, Work place, Amoeba, Heterolobosea, Protozoa, Fungi, Thallophyta
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 96-0374188
Code Inist : 002B30B01B. Création : 10/04/1997.