Indoor Chemical and Radiological Risk Monitoring Study

The (IN.SITU) Chemical and Radiological Risk in the Indoor Environment (CHeRRIE) study conducted measurements of radon concentrations and e-perm levels in indoor environments from Oct. 2014 to March 2015. The findings show variations in radon and e-perm levels at different times of the day and across seasons, indicating potential risks to indoor air quality.

• Indoor environment
• Chemical risk
• Radiological risk
• Radon concentrations
• E-perm levels

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1. (IN SITU) Chemical and Radiological Risk in the Indoor Environment (CHeRRIE) SUBSIDY CONTRACT No. B3.13.03

2. IN-SITU E-perm Pylon ( ) (20 min - ) Chemical and Radiological Risk in the Indoor Environment (CHeRRIE) SUBSIDY CONTRACT No. B3.13.03

3. (Oct.14-Mar. 15) - Pylon instrument 45 Radon Concentration (Bq/m3) 40 . (Bq/m3): (Bq/m3): Max (Bq/m3): Min (Bq/m3): 20 35 30 23 25 20 36 42 182 4 15 10 5 0 10:00 12:00 14:00 16:00 18:00 20:00 22:00 6:00 8:00 0:00 2:00 4:00 Time of Measurement Chemical and Radiological Risk in the Indoor Environment (CHeRRIE) SUBSIDY CONTRACT No. B3.13.03

4. (e-perm) ( 15- 15) / (Bq/m3) ( . 14- .15) / (Bq/m3) . : . (Bq/m3): . (Bq/m3): Max (Bq/m3): Min (Bq/m3): 15 85 89 28 161 52 . : . (Bq/m3): . (Bq/m3): Max (Bq/m3): Min (Bq/m3): 21 142 150 47 258 91 Chemical and Radiological Risk in the Indoor Environment (CHeRRIE) SUBSIDY CONTRACT No. B3.13.03

5. /(e-perm) 45 40 (%) 35 30 25 20 15 10 5 0 0-40 40-80 80-120 120-160 160-200 200-240 240-280 280-320 (Bq/m3) Chemical and Radiological Risk in the Indoor Environment (CHeRRIE) SUBSIDY CONTRACT No. B3.13.03

6. (e-perm) ( 15- 15) (Bq/m3) ( .14- 15) (Bq/m3) . : . (Bq/m3): . (Bq/m3): Max (Bq/m3): Min (Bq/m3): 14 75 88 44 165 21 . : . (Bq/m3): . (Bq/m3): Max (Bq/m3): Min (Bq/m3): 22 81 97 55 231 21 Chemical and Radiological Risk in the Indoor Environment (CHeRRIE) SUBSIDY CONTRACT No. B3.13.03

7. (e-perm) 40 35 (%) 30 25 20 15 10 5 0 0-40 40-80 (Bq/m3) 80-120 120-160 160-200 200-240 240-280 Chemical and Radiological Risk in the Indoor Environment (CHeRRIE) SUBSIDY CONTRACT No. B3.13.03

8. (e-perm) 250 summer June-July 15 winter Feb-March 15 200 150 (Bq/m3) 100 50 0 1 2 3 4 5 6 7 8 9 10 Chemical and Radiological Risk in the Indoor Environment (CHeRRIE) SUBSIDY CONTRACT No. B3.13.03

9. (e-perm) ( - . 2014) (Bq/m3) ( .- . 2014) (Bq/m3) . : . (Bq/m3): . (Bq/m3): Max (Bq/m3): Min (Bq/m3): 14 140 152 48 333 68 . : . (Bq/m3): . (Bq/m3): Max (Bq/m3): Min (Bq/m3): 13 157 169 59 263 58 Chemical and Radiological Risk in the Indoor Environment (CHeRRIE) SUBSIDY CONTRACT No. B3.13.03

10. (e-perm) 45 (%) 40 35 30 25 20 15 10 5 0 50-100 100-150 (Bq/m3) 150-200 200-250 250-300 300-350 Chemical and Radiological Risk in the Indoor Environment (CHeRRIE) SUBSIDY CONTRACT No. B3.13.03

11. (e-perm) 350 summer July-Aug 14 winter Nov-Dec 14 300 250 (Bq/m3) 200 150 100 50 0 1 2 3 4 5 6 7 8 9 10 11 12 13 Chemical and Radiological Risk in the Indoor Environment (CHeRRIE) SUBSIDY CONTRACT No. B3.13.03

12. COUNCIL DIRECTIVE 2013/59/EURATOM Article 75 The reference level applying to indoor external exposure to gamma radiation emitted by building materials, in addition to outdoor external exposure, shall be 1 mSv per year Article 75 The reference levels for the annual average activity concentration in air shall not be higher than 300 Bq m 3 Chemical and Radiological Risk in the Indoor Environment (CHeRRIE) SUBSIDY CONTRACT No. B3.13.03

13. ICRP 100 Bq/m3 1.72 mSv. 100 Bq/m3 0,16 30 . Chemical and Radiological Risk in the Indoor Environment (CHeRRIE) SUBSIDY CONTRACT No. B3.13.03

14. : 89 28 , 150 47 . : 88 44 , and 97 55 . Measurements in Drama using electret detectors: 152 68 , and 169 59 . Max > 200 q/m3, 300 q/m3, COUNCIL DIRECTIVE 2013/59/EURATOM Article 74 The reference levels for the annual average activity concentration in air shall not be higher than 300 Bq m 3 Chemical and Radiological Risk in the Indoor Environment (CHeRRIE) SUBSIDY CONTRACT No. B3.13.03