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Endotoxin in metal working fluid (MWF) mist
The risks to respiratory health from exposure to bacterial endotoxins are well established. The aims of this research were to: Review the evidence used to develop the health based recommended occupational exposure limit (HBROEL) for endotoxin of 90 endotoxin units per cubic metre (EU/m3) over an 8-hour period proposed by the Health Council for the Netherlands (DECOS); and to assess its relevance as a ‘benchmark' to assess risks to respiratory health caused by endotoxin in metal working fluid mists. Assess whether the published evidence on endotoxin concentration in metal working fluids...
Metalworking Fluids & Legionnaires Disease
New guidance on the risk of Legionnaires' disease from water mix metal working fluids (MWFs) has been published. Recent research shows there is a minimal risk of Legionella bacteria contaminating such a system, if the system is properly managed. It is suggested that, following HSE’s existing guidance on managing bacterial contamination of metalworking fluids, should be sufficient to control the risks. Under normal circumstances there is no need for any additional measures. Source :
Survival of Legionella pneumophila in metalworking fluids
HSE asked HSL to gather supporting evidence as to whether or not water miscible MWFs pose a Legionella infection risk and whether a Legionella risk assessment and appropriate actions are necessary. Three short studies were undertaken with the aim of determining a) whether free living Legionella survive in different types of MWF, b) whether amoebae, that act as hosts for the replication of Legionella, survive in different types of MWF and c) whether a greater concentration of Legionella cells can be detected in samples of used water-miscible MWFs compared to samples of potable mains water used in...
Réduction de la contamination bactérienne des fluides de coupe solubles
En 2000, près de 8000 travailleurs québécois ont été exposés aux fluides de coupe qui servent au refroidissement et à la lubrification du métal lors de l'usinage. La croissance bactérienne dans ces fluides est une problématique reconnue qui peut entraîner une perte des qualités intrinsèques des fluides de coupe. De plus, cette croissance dans les fluides peut produire une accumulation de toxines et d'allergènes. Lors des opérations avec des fluides de coupe, des aérosols sont produits...

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