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Presented to International meeting, Sarajevo, Bosnia and Herzegovina by Éva Vaskövi, Tímea Beregszászi, Mária Endrődy Dept.of Air Hygiene National Institute.

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Presentation on theme: "Presented to International meeting, Sarajevo, Bosnia and Herzegovina by Éva Vaskövi, Tímea Beregszászi, Mária Endrődy Dept.of Air Hygiene National Institute."— Presentation transcript:

1 Presented to International meeting, Sarajevo, Bosnia and Herzegovina by Éva Vaskövi, Tímea Beregszászi, Mária Endrődy Dept.of Air Hygiene National Institute of Environmental Health Budapest, Hungary April 17-19, 2007 SEARCH project Steps of Exposure Assessment

2 Contents Before the field work Arrangements Previous day During the field work First day First to last day

3 Arrangements –Contact Schools Designate the schools Determine the Nr of classrooms in each school Name the contact person Make connection to the nominated person Inform the school about the process of the field work ( time schedule: when-where- which days-what time)

4 Arrangements-looking round Preliminary going-over general information Assign the sampling points (I+O) Setting conditions for passives samplers (I+O) Setting conditions for continuous monitoring (devices, power +persons) Fill out the School Qestionnaire

5 Previous day Passive Sampling samplers (diffusive body, adsorption cartridge, supporting plate, labels, shelter) Continuous monitoring devices, laptop Others ladder, tape, string, scissors, extension cord Activity diary, Sampling records, Classroom Questionnaire Demo package

6 First day Arrival of our staff one hour before the schooltime

7 First day Setting of Outdoor passive samplers Where 1-3 sampling points depending on the orentation of the classrooms (NO2, BTX) 1sampling point depending on the orientation of the classroom monitored on the first day (HCHO) When in the morning, before the schooltime How long 4 -7days (NO2, BTX), 24 hrs (HCHO) Start the sampling Fill out the Sampling Records

8 First day Setting of Indoor passive samplers Where at 1 sampling point per classroom When in the morning before the schooltime How long 4 -7days (NO2, BTX) 24 hrs (HCHO) Start the sampling Fill out the Sampling Records

9 Practical advice for Passive HCHO Indoor+Outdoor sampling End the previous day sampling every morning and start the actual day sampling as on the first day Make the last sampling from the end of schooltime on the day before the last Important! 24 hr-exposure time

10 First to last day Continuous monitoring - Outdoor Where at passive sampling point (depending on the orentation of the monitored classroom) When before and after schooltime How long 10 minutes

11 First to last day Continuous monitoring - Indoor Where at the previously designated place in the classroom When on the selected day How long during the schooltime Install the indoor monitoring system( CO/CO2, PM10) Start the sampling Fill out the Sampling Records, Classroom Questionnaire, Activity Diary

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13 Components of radial diffusive sampler NO2 BTX Adsorbing cartridgeDiffusive body Supporting plate PE coated with TEA Steel net with charcoal BTX NO2

14 How to use passive samplers (Radiello) 1.Transfer adsorbent cartridge into the diffusive body 2.Srew diffusive body into the support plate 3.After sampling tranfer the cartridge into its glass tube 4.Write ID number on the label

15 Devices for Continuous monitoring PM10 CO/CO2/R H, T

16 Code: Character 1= Country, 2=Town, 3-4: School Questionnaire on the school environment §Name of the school ____________________________________________________ §Address §2.1. Town ___________________________________________________ §2.2. Street and No. ___________________________________________________ §3.Maintainer of the school: §1= municipality 2= foundation 3=church 4= private §5=institution 6= other (please, specify) §4.When was the school (building) built? Year______ §5. Was the school building built originally for being a school? 1 Yes 2. No §6.When was the school (as a whole) reconstructed? Year____ or No reconstruction §7. What was reconstructed during the last five years: §a.) electric cables 1. Yes 2. No §b.) lighting 1. Yes 2. No §c.) water-system 1. Yes 2. No §d.) classrooms 1. Yes 2. No §e.) windows 1. Yes 2. No §8.What is the main building material? (more answers are possible) §1. brick 2. concrete 3. wood 4. mud 5. other (please, specify)____________ §9.Generally, what is the traffic density in the direct neighbourhood of the school (within 100 metres)? §1. light 2. medium 3. heavy 4. very heavy with trucks (lorries) as well §10. Has the school got a yard? 1. Yes 2. No § If yes, what size? ______ m x _______ m or _________ m2

17 §10.2. If yes, what kind of activities is the school yard adequate for? §a.) sports 1. Yes 2. No §b.) playing 1. Yes 2. No §c.) resting 1. Yes 2. No § § If yes, when do the pupils use it? § a.) in the breaks between classes 1. Yes 2. No §b.) only in the morning long break 1. Yes 2. No § c.) after school-time 1. Yes 2. No §d.) almost never, or very seldom 1. Yes 2. No §e.) it is used for other purposes (e.g. car-park)1. Yes 2. No § §11. Has the school got a green space around it? (sports-field, park etc.) 1.Yes 2. No §12. Has the school got a gymnasium? 1.Yes 2. No §13. Are the teachers allowed to smoke in the school building? §1. Yes, without any restrictions §2. Yes, but only in designated spaces §3. No, not at all §14. What kind of heating system is there in the school building? §1. Central or district heating with radiators §2. Electric heating appliances §3. Gas heaters §4. Coal or wood-fired ovens §15. Is there artificial ventilation in the school building? §1. Yes, there is an artificial ventilation system in the whole building §2. Yes, there is artificial ventilation installed in some parts of the building §3. No, there is no artificial ventilation in any parts of the building §16. Is there any of the following establishments within a distance of 500 m from the school? § a)Industry (factory, plant): 1: yes 2: no § b) Power plant, incinerator:1: yes 2: no § c)Waste deposite site:1: yes 2: no § d)Other polluting establishment § (please describe): ……………………………….1: yes 2: no §17. How much time do the children (of the selected classes) usually spend a day in this school? hours §


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