Variations in particle concentrations and indoor air parameters in classrooms in the heating and summer seasons
PBN-AR
Instytucja
Wydział Inżynierii Środowiska (Politechnika Lubelska)
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
ARCHIVES OF ENVIRONMENTAL PROTECTION
ISSN
2083-4772
EISSN
Wydawca
DOI
URL
Rok publikacji
2013
Numer zeszytu
4
Strony od-do
15-28
Numer tomu
39
Identyfikator DOI
Liczba arkuszy
Autorzy
(liczba autorów: 1)
Streszczenia
Język
EN
Treść
Simultaneous measurements of the indoor and outdoor particle mass (PM) and particle number (PN) concentrations as well as the air temperature, relative humidity (RH), and CO2 concentrations have been conducted in 6 occupied (L) and unoccupied (V) classrooms in 3 secondary schools in Lublin, Poland, in the heating (H) and summer (S) seasons. The schools were located in residential areas where the majority of private houses are heated by means of coal-burning stoves. The ratios of the average particle concentrations in occupied and unoccupied classrooms (L/V) were higher during the heating season measurements. The ratios of the average particle concentrations during the measurements in the heating and summer seasons (H/S) were higher in occupied classrooms. In both seasons the average PM and PN concentrations amounted to 239 μg/m3 and 7.4×103/cm3 in the occupied classrooms, and to 76 μg/m3 and 5.4×103/cm3 in the unoccupied classrooms, respectively. The particle exposures experienced by students were higher in the monitored classrooms than outdoors and were on average about 50% higher in the heating than in the summer season. A positive correlation between mass concentrations of coarse particles and indoor air temperature, RH and CO2 concentrations in both seasons was observed. The concentrations of fine particles were negatively correlated with the indoor air parameters in the heating season, and positively correlated in the summer season.
Inne
System-identifier
10400