JOSRA 3 - 2009

Dne 17. 9. 2009 se na Státním zdravotním ústavu za spoluúčasti Společnosti pracovního lékařství ČLS JEP a České lékařské komory konal již 29. konzultační den. Probíraná témata konzultačního dne byla rozdělena do dvou okruhů, jimiž byly „Nanomateriály a nanotechnologie z pohledu hygieny práce“ a „Monitorování expozice chemickým látkám na pracovištích“. Tento článek seznamuje čtenáře s průběhem zmíněné akce a s tématy presentovaných přednášek.

Problems following the application of optimal operative temperatures estimated on the basis of PMV and the necessity to apply correct values into the new Czech Government Directive No. 523/2002 Code led to experiments based on the physiological human body response instead of on solely man’s feelings in a defined environment. On the basis of experiments on 32 subjects (university students) it has been possible to estimate: a) total balance of hygrothermal flows between the human body and environment, b) the optimal operative temperature as a function of the subject’s activity, c) the thermoregulatory range for each optimal operative temperature, i.e. maximal (category Cmax) limited by the beginnings of sweating, minimal (category Cmin) limited by the beginnings of shivering (category C can be applied to the natural ventilated buildings), optimal (comfort level – category A) defined by time constant 0.368 (can be applied to air conditioned buildings) and submaximum (decreased comfort level – category B) defined by time constant 0.632 (can be applied to buildings with basic air conditioning systems).

Next article about results from project Occupational health and safety and risk factors of workers over 50 years old - the participation of older citizens in the labour market and proposals for measures in the industrial and commercial sectors is focused on target group – workers over 50, especially from the point of view of social policies and labour market.