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The effect of local heating on air quality in a small settlement
Andělová, Ludmila
Concentrations of PM10 and Black Smoke (BS) were measured during one winter and two summer periods in small village Albrechtice v Jizerských horách. Major source of aerosol in this village is domestic use of coal and wood burning. 15 minute concentrations of PM10 were measured by DustTrak and 24-h concentrations of PM10 were measured by Harvard impactor. 24-h concentrations of BS were measured too. Concentrations of PM10 and 24-h concentrations of BS were highly correlated during the heating season (0,89). The correlation dropped to 0,68 during the second summer period. Concentrations of PM10 were negatively correlated with average daily temperature during the winter season (-0,41). Positive correlation between PM10 and temperature was found during the first summer period (0,34) and no correlation was found during the second summer period (-0,01). Concentrations of BS were negatively correlated with average daily temperature during all the three seasons. Negative correlation between PM10 and wind velocity was found during the winter season (-0,43). Daily maximums were found mainly between 4 and 12 pm. Comparison of PM10 data from Albrechtice with PM10 data from two urban areas Jablonec nad Nisou and Liberec and one background area Souš showed that average PM10 concentrations in Albrechtice were the...
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The effect of local heating on air quality in a small settlement
Andělová, Ludmila
Concentrations of PM10 and Black Smoke (BS) were measured during one winter and two summer periods in small village Albrechtice v Jizerských horách. Major source of aerosol in this village is domestic use of coal and wood burning. 15 minute concentrations of PM10 were measured by DustTrak and 24-h concentrations of PM10 were measured by Harvard impactor. 24-h concentrations of BS were measured too. Concentrations of PM10 and 24-h concentrations of BS were highly correlated during the heating season (0,89). The correlation dropped to 0,68 during the second summer period. Concentrations of PM10 were negatively correlated with average daily temperature during the winter season (-0,41). Positive correlation between PM10 and temperature was found during the first summer period (0,34) and no correlation was found during the second summer period (-0,01). Concentrations of BS were negatively correlated with average daily temperature during all the three seasons. Negative correlation between PM10 and wind velocity was found during the winter season (-0,43). Daily maximums were found mainly between 4 and 12 pm. Comparison of PM10 data from Albrechtice with PM10 data from two urban areas Jablonec nad Nisou and Liberec and one background area Souš showed that average PM10 concentrations in Albrechtice were the...
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Aerosol Particles in the Indoor Environment of the National Library in Prague
Andělová, Ludmila ; Smolík, Jiří ; Džumbová, Lucie ; Ondráček, Jakub ; Součková, M. ; Stankiewicz, J. ; López-Aparicio, S. ; Grontoft, T.
Particulate matter in the indoor air in exhibition rooms is a serious risk to works of art stored there. In the Baroque Library Hall of the National Library we examined concentrations and compositions of aerosol particles during 4 intensive campaigns in different seasons of year. Time variation of fine particles concentration indicated outdoor origin with traffic as the most probable source. The concentration of coarse particles revealed periodic increase and decrease, corresponding to beginning and end of visiting hours, indicating visitors as a source of these particles. The major water-soluble inorganic components of the fine particle mode were ammonium sulphate and nitrate, with indoor nitrate concentrations decreasing to zero. It was apparently caused by evaporation of ammonium nitrate after penetration indoors. Crustal elements in both indoor and outdoor samples were predominantly associated with coarse particles.
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