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: 12/07/2025 07:00
36
Low (2)
20
Low (1)
N/M 5
Low (1)
10
Low (1)
N/M
Devils Tower Road

Updated: 12/07/2025 06:00
N/M 6
Low (1)
N/M N/M N/M N/M
Devils Tower Road (mobile)

Updated: 12/07/2025 07:00
N/M 10
Low (1)
N/M N/A N/A 0.1
Low (1)
North Mole Road (mobile)

Updated: 12/07/2025 07:00
N/M 39
Low (1)
N/M 4
Low (1)
4
Low (1)
0.3
Low (1)
Rosia Road

Updated: 12/07/2025 07:00
N/M 22
Low (1)
N/A 5
Low (1)
14
Low (1)
0.3
Low (1)