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. 2011 Jul 27;6(7):e21961. doi: 10.1371/journal.pone.0021961

Table 1. Summary of temperature (mean), nitrogen oxides (mean), PM number concentrations (PNC; median), VCM corrected TEOM and MOUDI PM10 mass (mean) at primary school sampling sites.

SchoolID SiteType Sampling Dates Temp (°C) NO/NO2 NOx (µg m−3)(as NO2) PNC (particlescm−3) Raw TEOM PM10(µg m−3) VCM TEOM PM10(µg m−3) MOUDI PM10(µg m−3)
A SU Feb 22–29, 2008 NA 0.30 (0.05; 1.30) 62.3 (13.4; 265.5) 8,147 (3,437; 28,263) 14.0 (4.5; 27.3) 17.1 (6.8; 30.4) 13.2
Feb 29–Mar 6, 2008 NA 0.17 (0.00; 0.53) 33.4 (3.7; 122.7) 6,428 (1,270; 17,513) 13.5 (3.0; 23.8) 14.4 (4.3; 26.5) 11.6
B UB Jan 30–Feb 6, 2008 6.8 (1.7; 11.7) 0.09 (0.00; 0.36) 35.9 (7.5; 96.2) 16,249 (3,268; 86,742) 14.7 (4.1; 26.1) 14.0 (2.0; 25.8) 11.6
Jan 6–14, 2008 7.5 (1.6; 16.0) 0.90 (0.03; 2.89) 184.8 (26.8; 514.8) 25,447 (5,670; 51,984) 27.7 (11.1; 52.8) 36.5 (16.2; 68.0) 25.2
C UB Jan 9–16, 2008 9.1 (4.8; 11.4) 0.11 (0.00; 0.32) 36.0 (8.3; 87.3) 14,110 (3,271; 29,446) 14.3 (2.0; 26.6) 14.4 (3.3; 26.1) 12.2
Jan 16–25, 2008 7.6 (4.8; 11.7) 0.16 (0.00; 0.76) 50.2 (6.8; 176.4) 8,796 (2,323; 33,547) 23.9 (5.5; 75.4) 23.9 (5.3; 78.9) 18.0
D UB Dec 12–19, 2007 2.9 (−1.5; 5.6) 0.99 (0.06; 3.28) 187.5 (31.1; 672.8) 26,559 (6,260; 71,742) 26.1 (12.9; 47.6) 36.8 (22.1; 62.8) 22.0
Jan 3–9, 2008 7.2 (3.5; 10.3) 0.23 (0.03; 0.69) 38.5 (5.2; 103.1) 7,025 (2,118; 27,091) 21.0 (7.5; 51.6) 27.7 (7.0; 67.4) 14.3
E RS Mar 6–13, 2008 8.7 (5.8; 12.7) 0.44 (0.10; 0.96) 67.3 (21.6; 152.4) 13,822 (4,847; 30,435) 19.1 (6.0; 36.4) 19.4 (5.8; 35.7) 12.5
Mar 13–19, 2008 7.9 (2.8; 14.3) 0.56 (0.10; 1.20) 91.8 (23.2; 216.0) 15,495 (5,119; 38,350) 18.2 (8.4; 31.7) 21.9 (10.7; 38.4) 14.3
F RS Nov 14–21, 2007 6.2 (−0.1; 11.1) 1.81 (0.33; 4.20) 343.3 (24.2; 1140) 46,004 (6,169; 159,633) NA NA 24.5
Nov 21–28, 2007 6.3 (−0.1; 11.1) 0.88 (0.05; 2.56) 147.8 (29.6 424.3) 30,549 (8,024; 137,295) 26.2
G RS Nov 28–Dec 5, 2007 11.4 (8.6; 15.0) 0.58 (0.15; 1.06) 83.6 (12.1; 231.9) 9,779 (2,175; 33,001) NA NA 12.1
Dec 5–12, 2007 9.0 (2.1; 15.4) 0.85 (0.16; 2.84) 156.9 (12.4; 716.8) 17,859 (2,714; 82,569) 15.2

The associated 5th and 95th percentiles are also given in brackets for semi-continuous measurements. Note: SU, sub-urban; UB: urban background; RS, roadside; NA, not available.