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SEARCH. 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. Project Implementation phase 2. 27-28 March 2009 , Bratislava, Slovakia.
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SEARCH É. Vaskövi1, O. Udvardy1, M. Endrődy1, T. Beregszászi1, P. Rudnai1, É. Csobod2 1Department of Air Hygiene NCPH-NIEH 2Regional Environmental Centre for Central and Easter Europe, Hungarian Office Project Implementation phase 2 27-28 March 2009 , Bratislava, Slovakia
OBJECTIVES • 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
Whystudyindoor air in SCHOOLS ? • 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
Sourcesof Indoor Air Pollution • Within the school building • Polluted outdoor air (traffic, industry)
CHARACTERISTICINDOORSOURCESIN HUNGARIAN SCHOOLS HCHO BTEX 1 • panelling • fabric • plywood • floor carpet • furniture • board • plasticflooring • oilpaint • furniture 7 2 6 8 5 3 4
PARTICIPATING COUNTRIES ALBANIA BOSNIA** HUNGARY ITALY* SERBIA SLOVAKIA * resultsaren’tintegrated ** pollutiondataarepresentedonly
SAMPLING PLACES INDOOR classroom, inthebreathingzone OUTDOOR ambient air, closesttothewindow of theclassroom
SAMPLING DURATION dependingtype of thepollutantsmeasured CO2, CO, PM10, T, RH schooltime, oneday/classsroom NO2, BTEX, HCHO 3-5 daysdependingonthe Nr of classrooms
INDOOR AIR QUALITY PARAMETERS • CHEMICAL CO2, CO, NO2, BTEX, HCHO, PM10 • PHYSICAL T, RH
SAMPLING METHODS • REAL-TIME MONITORING • T, RH, CO2, CO • PM • INTEGRATED (PASSIVE) SAMPLING • NO2 • BTEX, H2CO
QUALITY ASSURANCE • Protocolforfieldwork • Training and consultation • The sameportablemonitors and passivesamplers • Blanksamples • Passivesampleswerecollectedbythecountries and analysedbyonelaboratory • Samplestransportationwereperformedincompliancewiththesameprotocol
STATISTICAL RELATIONS BETWEEN CONCENTRATIONS AND INDOOR SOURCES
Facingthestreet: HCHO ↑ CO2 ↑ PM10↑outdoorsourcesornotenoughventillaton?- Freshpainting → HCHO ↑- Floor: woodorcarpet → HCHO ↑ PM10↑ - Classroomcrowdness → PM10↑