The 2nd survey | NOx at workplace address (μg/m3) | Time outdoor in traffic/day (self-reported) | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
total | 0-8 | 8-11 | 11-14 | 14-19 | > 19 | Total | 0-30 min | 30-1 h | 1-2 h | > 2 h | ||
NOx at residential address (μg/m3) | 0-8 | 770 | 412(53.5%) | 78(10.1%) | 132(17.1%) | 60(7.8%) | 88(11.4%) | 770 | 159(20.6%) | 306(39.7%) | 188(24.4%) | 117(15.2%) |
8-11 | 210 | 30(14.3%) | 44(21.0%) | 59(28.1%) | 32(15.2%) | 45(21.4%) | 210 | 34(16.2%) | 87(41.4%) | 55(26.2%) | 34(16.2%) | |
11-14 | 210 | 13(6.2%) | 15(7.1%) | 102(48.6%) | 26(12.4%) | 54(25.7%) | 210 | 41(19.5%) | 88(41.9%) | 65(31.0%) | 16(7.6%) | |
14-19 | 161 | 4(2.5%) | 7(4.3%) | 38(23.6%) | 39(24.2%) | 73(45.3%) | 161 | 29(18.0%) | 65(40.4%) | 41(25.5%) | 26(16.1%) | |
> 19 | 137 | 9(6.6%) | 4(2.9%) | 18(13.1%) | 26(19.0%) | 80(58.4%) | 137 | 20(14.6%) | 53(38.7%) | 37(27.0%) | 27(19.7%) |