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: 19/09/2025 07:00 |
65 Low (2) |
0 Low (1) |
N/M |
7 Low (1) |
14 Low (1) |
N/M |
|
Devils Tower Road
Updated: 19/09/2025 07:00 |
N/M |
41 Low (1) |
N/M | N/M | N/M | N/M |
|
Devils Tower Road (mobile)
Updated: 19/09/2025 08:00 |
N/M |
26 Low (1) |
N/M |
9 Low (1) |
31 Low (2) |
0.2 Low (1) |
|
Governor's Lane (mobile)
Updated: 19/09/2025 07:00 |
N/M |
10 Low (1) |
N/M |
8 Low (1) |
10 Low (1) |
0.1 Low (1) |
|
Harbour Views Road (mobile)
Updated: 19/09/2025 08:00 |
N/M |
23 Low (1) |
N/M |
12 Low (2) |
20 Low (2) |
0.0 Low (1) |
|
North Mole Road (mobile)
Updated: 19/09/2025 07:00 |
N/M |
37 Low (1) |
N/M |
10 Low (1) |
13 Low (1) |
0.3 Low (1) |
|
Rosia Road
Updated: 19/09/2025 07:00 |
N/M |
12 Low (1) |
2 Low (1) |
7 Low (1) |
14 Low (1) |
0.2 Low (1) |
|
Rosia Road Clocktower (mobile)
Updated: 19/09/2025 08:00 |
N/M |
33 Low (1) |
N/M |
6 Low (1) |
8 Low (1) |
0.1 Low (1) |
19/09/2025 07:00
