Wybrane zagadnienia z bioklimatu Lublina

The aim of this paper is to elaborate the bioclimatic conditions in Lublin in the years 1952–2010. For this purpose the cooling air power and the latest indicator of the thermal load of the human body Universal Thermal Climate Index (UTCI) were studied. According to bioclimatic index air cooling power (H) conditions considered as comfort conditions (mild and pleasantly cool) occurred with total frequency of 41%. In the years 1952–2010 there was a slight decrease of percentage of cold conditions (unbearably cold and windy and cold). In the years 1952–2010 thermoneutral zone was the most often occurring conditions from UTCI scale (39% of days). Despite the year-to-year differences during long-term course there are no significant changes. The biggest changes are visible at the beginning of the 70’s, when the share of conditions connected to the heat stress increased and the share of classes connected with cold stress decreased.