Table 2.
PCBs | |||||
City | No. b | No. c | Mean d pg/m3 | ||
Suwon | 19 | 180 | Σ PCB = 233.60 | Gas = 221.41 | |
19 | 7 | ΣICES-PCB = 34.08 | Gas = 32.06 | ||
19 | 12 | Σdl-PCB = 2.28 (0.006 pg-TEQ/m3) | Gas = 2.00 (0.004 pg-TEQ/m3) | ||
Ansan | 11 | 180 | ΣPCB = 274.15 | Gas = 251.77 | |
11 | 7 | Σ ICES-PCB = 36.45 | Gas = 33.70 | ||
11 | 12 | Σdl-PCB = 4.24 (0.023 pg-TEQ/m3) | Gas = 3.66 (0.016 pg-TEQ/m3) | ||
Seoul | 14 | 41 | ΣPCB = 130.41 | ||
Ansung | 14 | 41 | ΣPCB = 39.65 | ||
30 Cities a | 30 | 202 | ΣPCB = 155.77 | ||
58 Cities a | 58 | 202 | ΣPCB = 315.02 | ||
Nationwide | 34 | - | ΣPCB = 100.00 | ||
Nationwide | 69 | - | ΣPCB = 260.00 | ||
Nationwide | 74 | - | ΣPCB = 240.00 | ||
20 Cities | 20 | 202 | ΣPCB = 1,512.58 | ||
Taichung | 1 | 202 | ΣPCB = 316.51 | ||
PCDDs/Fs | |||||
City | No. b | No. c | Mean d I TEQ pg/m3 | ||
Suwon | 19 | 17 | ΣPCDDs/Fs = 0.086 | Σ PCDDs/Fs (gas) = 0.022 | |
Ansan | 11 | 17 | ΣPCDDs/Fs = 0.357 | Σ PCDDs/Fs (gas) = 0.109 | |
Nationwide | 48 | 17 | ΣPCDDs/Fs = 0.160 | ||
Nationwide | 48 | 17 | ΣPCDDs/Fs = 0.077 | ||
Nationwide | 48 | 17 | ΣPCDDs/Fs = 0.074 | ||
Shanghai | 7 | 17 | ΣPCDDs/Fs = 0.289 | ||
Shanghiai | 7 | 17 | ΣPCDDs/Fs = 0.497 | ||
Beijing e | 12 | 17 | ΣPCDDs/Fs = 0.268 | ||
Hangzohou | 24 | 17 | ΣPCDDs/Fs = 0.295 | ||
Guangzhou | 6 | 17 | ΣPCDDs/Fs = 0.769 | ||
Kaohsiung | 40 | 17 | ΣPCDDs/Fs = 0.074 |
Notes: a Data obtained by passive air sampler; b Number of samples; c Number of congener analysis; d Geometric mean (GM); e Arithmetic mean (AM).