Badania nad występowaniem węgla w powietrzu wewnętrznym wybranych uczelni w Polsce

Abstract

<jats:p>The research presented herein aimed at recognition of submicrone particulate matter concentration as well as organic (OC) and elemental (EC) carbon bound to it in a lecture room and students’ laboratory. The 24-h variability of PM1, OC and EC concentration in both rooms were also discussed along with I : O ratio. In the analysed period – the turn of spring and summer – independent of the location (Gliwice – students’ laboratory, Warsaw – lecture room) the indoor concentration of elemental carbon EC was conditioned by the intensity of those contaminants migration along with atmospheric air. Because of this, it can be concluded that in neither of the rooms there was an important source of OC and EC. However, it should be noted, that conditions favourable for different contaminant sorption, in particular those belonging to OC bound to particulate matter, vary in time and space. It is expected, that for other measurement period – for instance in winter, when rooms are ventilated seldom and PM has different composition, the cummulation of indoor contaminants, including OC, may be higher than for warm period.</jats:p>

Particulate matter and polycyclic aromatic hydrocarbons in a selected athletic hall: ambient concentrations, origin and effects on human health

“…A similar phenomenon was observed in air quality studies in university teaching rooms in Gliwice and Warsaw [20,21]. Over time, the particles inside the hall create larger agglomerates and they are added to the mass of the coarse dust (in this case, the aggregate mass of the particles in the 4100 μm range).…”

The role of oxygen in the functioning of the Earth system: past, present and future

“…The lowest is observed during the winter, from the end of December to the beginning/mid-February (usually ~17 per cent, but with temporary drops to <15 per cent, extremely to ~11 per cent). Secondly, there is temporal and spatial variability of oxygen concentration in the air of a large city and suburban area (Majewski & Cichocka, 2012). Changes in oxygen content in daily, monthly and annual rhythms have been analysed, as related to fluctuations in temperature, humidity and atmospheric pressure.…”