1. PM Chemical Composition Jiří Smolík, Jaroslav Schwarz Institute of Chemical Process Fundamentals AS CR, Praha

2. 2 Czech Republic Apartment, ICPF, Prague 16.-29.11.2002

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6. 6 Methods  Ion Chromatography: NH 4 +, Na +, K +, Ca +, Mg +, SO 4 2-, NO 3 -, Cl -  PIXE: Al,Ca,Cr,Cu,Fe,K,Mn,Ni,Pb,S,Si,Ti,V,Zn  INAA: Al,Ag,As,Au,Ba,Br,Ca,Cd,Ce,Cl,Co,Cr, Cu,Eu,Fe,Ga,Hf,I,K,La,Mg,Mn,Mo,Na,Ni, Rb,Sb,Sc,Se,Sm,Sr,Ta,Th,Ti,U,V,W,Zn

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11. 11 RelativeHumidity Relative Humidity RH Outdoor: 80(72) - 88% RH Indoor: 27 - 32% RH Indoor: 27 - 32%

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