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. 2013 Aug 23;8(8):e73251. doi: 10.1371/journal.pone.0073251

Table 3. Smoking-Episode Metrics for Kitchen-Dining-Living Room (Kit-Din-Liv) and Bedroom Areas for Baseline (B) and Intervention (I) Periods for Participating Intervention Families (F1, F2, F3) a.

Family ID F1
F2
F3
Monitored Areab Kit-Din-Liv
Bedroom*
Kit-Din-Liv*
Bedroom
Kit-Din-Liv*
Bedroom
Baseline or Intervention B I B I B I B I B I B I
Time Period, Full Days c 6 3 6 3 4 11 4 11 6 5 6 5
No. Episodes, Total 25 2 53 15 18 86 10 34 102 81 72 90
No. Episodes Per Day, Median 4.5 1 9 6 6 7 3 2 18 16 12 15
Episode Duration Per Day (min), Median 213 3 379 154 98 72 57 46 571 495 481 481
Episode 1-min Peak Level (μg/m3), Median 74 75 96 88 111 102 68 74 114 125 108 78
Episode Average Level (μg/m3), Median 69 69 82 72 87 79 65 67 90 93 86 71
Episode Integrated Level Per Day (Conc x Time) ([μg/m3]-min), Median 19K 188 51K 13K 8.2K 6.6K 3.8K 4.2K 80K 80K 61K 55K

aEpisodes are defined by continuous periods with particle levels exceeding the first signal threshold of 60 µg/m3 on full days of monitoring

bAreas (i.e., rooms) closest to regular smoking activity are indicated with an asterisk (*)

cWe omitted transition days (i.e., days when signals were activated) in all statistics.