Current levels
Current measured levels are shown in the table below - showing concentrations and, where applicable, the corresponding index and bands.
Key: N/M: Not Measured
Key: N/D: No Data
| Monitoring site | 8 Hour mean Ozone (µg/m3) |
Hourly mean Nitrogen dioxide (µg/m3) |
Max 15 min mean Sulphur dioxide (µg/m3) |
Running 24 Hour mean PM2.5 Particles (µg/m3) |
Running 24 Hour mean PM10 Particles (µg/m3) |
8 Hour mean CO (mg/m3) |
|---|---|---|---|---|---|---|
|
Bleak House
Updated: 07/11/2025 22:00 |
33 Low (1) |
52 Low (1) |
N/M |
6 Low (1) |
16 Low (1) |
N/M |
|
Devils Tower Road
Updated: 08/11/2025 05:00 |
N/M |
15 Low (1) |
N/M | N/M | N/M | N/M |
|
Devils Tower Road (mobile)
Updated: 08/11/2025 06:00 |
N/M |
49 Low (1) |
N/M |
94 Very High (10) |
182 Very High (10) |
0.2 Low (1) |
|
Governor's Lane (mobile)
Updated: 08/11/2025 06:00 |
N/M |
45 Low (1) |
N/M |
3 Low (1) |
5 Low (1) |
0.2 Low (1) |
|
Harbour Views Road (mobile)
Updated: 08/11/2025 06:00 |
N/M |
49 Low (1) |
N/M |
2 Low (1) |
8 Low (1) |
0.4 Low (1) |
|
North Mole Road (mobile)
Updated: 08/11/2025 06:00 |
N/M |
53 Low (1) |
N/M |
4 Low (1) |
4 Low (1) |
0.3 Low (1) |
|
Rosia Road
Updated: 08/11/2025 06:00 |
N/M |
30 Low (1) |
2 Low (1) |
6 Low (1) |
16 Low (1) |
0.8 Low (1) |
|
Rosia Road Clocktower (mobile)
Updated: 08/11/2025 06:00 |
N/M |
55 Low (1) |
N/M |
1 Low (1) |
4 Low (1) |
0.0 Low (1) |
07/11/2025 22:00
