1. É. Vaskövi 1, O. Udvardy 1, M. Endrődy 1, T. Beregszászi 1, P. Rudnai 1, É. Csobod 2 1 Department of Air Hygiene NCPH-NIEH 2 Regional Environmental Centre for Central and Easter Europe, Hungarian Office SEARCH 27-28 March 2009, Bratislava, Slovakia

2.  Identify the exposure level in combination with building characteristics and occupant behaviour and activities  Analyse the passive samples  Compare the air quality data measured by the participating centres  Evaluation of the relationship between measured concentrations and possible emission sources  Draw the conclusions

3.  IAQ-related health problems in schools  IAQ can potentially affect the health of students /staff in the educational process  Children are more susceptible to poor IAQ  Students spend 4-8 hrs a day in school  Magnitude of schoolchildren population  IAQ pollutants are 2 to 5 times higher

4.  Within the school building  Polluted outdoor air ( traffic, industry )

5. HCHO BTEX 1.panelling 2.fabric 3.plywood 4.floor carpet 5.furniture 6 5 3 2 1 8 7 6. board 7. plastic flooring 8. oil paint 5. furniture 4 CHARACTERISTIC INDOOR SOURCES IN HUNGARIAN SCHOOLS

6. MONITORING PROGRAM

7. ALBANIA BOSNIA** HUNGARY ITALY* SERBIA SLOVAKIA * results aren’t integrated ** pollution data are presented only

8. CountryTown number School number Class number Albania31035 Bosnia31040 Hungary41043 Serbia71044 Slovakia21040

9. INDOOR  classroom, in the breathing zone OUTDOOR  ambient air, closest to the window of the classroom

10. CountryBeginning date End date Albania22/01/200804/04/2008 Bosnia24/12/200717/04/2008 Hungary05/11/200729/02/2008 Serbia28/01/200809/05/2008 Slovakia03/12/200714/03/2008

13.  REAL-TIME MONITORING  T, RH, CO2, CO  PM  I NTEGRATED (PASSIVE) SAMPLING  NO2  BTEX, H2CO

14.  Protocol for field work  Training and consultation  The same portable monitors and passive samplers  Blank samples  Passive samples were collected by the countries and analysed by one laboratory  Samples transportation were performed in compliance with the same protocol

15. RESULTS

23. HCHO P CO2 - values PM10 Albania Classroom crowdness (7 category) 0,0432 The wall is covered by white-wash 0,0136 When were the walls painted last time0,0254 Hungary Orientation of the classroom: facing the street 0,03530,0563 The floor is made of wood0,0518 0,0009 Time of opened windows (<1 h) 0,0029 Serbia On which floor is this classroom situated 0,0190 Windows not opened0,0105 0,0976 How frequently are the windows opened 0,0769 Slovakia Orientation of the classroom: facing the street0,0376 The floor is covered with carpet0,0736 Classroom crowdness (<2m2; <6m3) 0,0887

24. CONCLUSIONS

25. HCHO Orientation of the classroom: facing the streetSlovakia When were the walls painted last timeAlbania The floor is made of woodHungary The floor is covered with carpetSlovakia Windows not openedSerbia CO2 Orientation of the classroom: facing the streetHungary Time of opened windows (<1 h)Hungary How frequently are the windows openedSerbia PM10 On which floor is this classroom situatedSerbia Orientation of the classroom: facing the streetHungary Classroom crowdnessAlbania, Slovakia The wall is covered by white-washAlbania The floor is made of woodHungary The floor is covered with carpetSlovakia Windows not openedSerbia

26. - Facing the street: HCHO ↑ CO2 ↑ PM10↑ outdoor sources or not enough ventillaton? - Fresh painting → HCHO ↑ - Floor: wood or carpet → HCHO ↑ PM10↑ - Classroom crowdness → PM10↑