Pubs, bars and restaurants are places where smoking policy is still left to the discretion of the manager and where smoking is often permitted. However, there is demand to take measures to eliminate or reduce the effects of environmental tobacco smoke (ETS) to non-smoking occupants. This paper reports the results of a field study in which ETS markers and air flow patterns were monitored in a number of occupied spaces.

Improvement in contamination control for a LCD color filter coater was studied by using a mini-environmental design. Different operating conditions of the door and the exhaust of the mini-environment were studied. Measurements of particle concentration flow field, and VOC concentration were performed. Both the particle contamination to the coating process and the VOC contamination to the outside cleanroom environment were considered in this study. lt was found that a minienvironment could be designed to significantly reduce the particle concentration.

The paper presents results of interlaboratory comparison on the emission of formaldehyde from mineral wool board. Eleven laboratories took part in these studies. The results showed significant variances between laboratories. The discrepancy was related to the chamber conditions and sampling