| 측정소 | 데이터시간 | 미세먼지 | 초미세먼지 | 이산화탄소 | 오존 | 이산화황 | 이산화질소 |
| 새만금 | 2026-05-16 06:00:00 | 26.0㎍/㎥ (1) | 24.0㎍/㎥ (2) | 0.2ppm (1) | 0.045ppm (2) | 0.002ppm (1) | 0.004ppm (1) |
| 새솔동 | 2026-05-15 22:00:00 | 22.0㎍/㎥ (1) | 8.0㎍/㎥ (1) | 0.3ppm (1) | 0.044ppm (2) | 0.004ppm (1) | 0.007ppm (1) |
| 서강동 | 2026-05-15 22:00:00 | 18.0㎍/㎥ (1) | 12.0㎍/㎥ (1) | 0.5ppm (1) | 0.035ppm (2) | 0.002ppm (1) | 0.014ppm (1) |
| 서대문구 | 2026-05-15 22:00:00 | 30.0㎍/㎥ (2) | 20.0㎍/㎥ (2) | 0.5ppm (1) | 0.04ppm (2) | 0.003ppm (1) | 0.018ppm (1) |
| 서면 | 2026-05-16 06:00:00 | 31.0㎍/㎥ (1) | 14.0㎍/㎥ (1) | 0.3ppm (1) | 0.029ppm (1) | 0.003ppm (1) | 0.009ppm (1) |
| 서변동 | 2026-05-15 22:00:00 | 22.0㎍/㎥ (1) | 17.0㎍/㎥ (1) | 0.4ppm (1) | 0.043ppm (2) | 0.002ppm (1) | 0.012ppm (1) |
| 서석동 | 2026-05-15 22:00:00 | 32.0㎍/㎥ (1) | 22.0㎍/㎥ (2) | 0.4ppm (1) | 0.055ppm (2) | 0.003ppm (1) | 0.009ppm (1) |
| 서신면 | 2026-05-15 22:00:00 | 22.0㎍/㎥ (2) | 18.0㎍/㎥ (1) | 0.2ppm (1) | 0.051ppm (2) | 0.002ppm (1) | 0.007ppm (1) |
| 서창 | 2026-05-16 06:00:00 | 29.0㎍/㎥ (1) | 20.0㎍/㎥ (2) | 0.4ppm (1) | 0.004ppm (1) | 0.004ppm (1) | 0.028ppm (1) |
| 서천읍 | 2026-05-16 06:00:00 | 30.0㎍/㎥ (1) | 24.0㎍/㎥ (2) | 0.4ppm (1) | 0.018ppm (1) | 0.004ppm (1) | 0.007ppm (1) |