Current levels

Current measured levels are shown in the table below - showing concentrations and, where applicable, the corresponding index and bands.

Switch to the 24 hour summary

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: 08/07/2025 07:00
37
Low (2)
38
Low (1)
N/M 12
Low (2)
21
Low (2)
N/M
Devils Tower Road

Updated: 08/07/2025 07:00
N/M 18
Low (1)
N/M N/M N/M N/M
Devils Tower Road (mobile)

Updated: 08/07/2025 08:00
N/M 23
Low (1)
N/M N/A N/A 0.2
Low (1)
North Mole Road (mobile)

Updated: 08/07/2025 07:00
N/M 46
Low (1)
N/M 11
Low (1)
12
Low (1)
0.3
Low (1)
Rosia Road

Updated: 08/07/2025 08:00
N/M N/A -4
Low (1)
12
Low (2)
22
Low (2)
0.4
Low (1)