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: 15/10/2024 06:00
39
Low (2)
25
Low (1)
N/M 9
Low (1)
18
Low (2)
N/M
Devils Tower Road

Updated: 15/10/2024 04:00
N/M 15
Low (1)
N/M N/M N/M N/M
Devils Tower Road (mobile)

Updated:
N/M N/A N/M N/A N/A N/A
Harbour Views Road (mobile)

Updated:
N/M N/A N/M N/A N/A N/A
North Mole Road (mobile)

Updated: 15/10/2024 05:00
N/M 4
Low (1)
N/M 14
Low (2)
26
Low (2)
0.1
Low (1)
Rosia Road

Updated: 15/10/2024 05:00
N/M 17
Low (1)
0
Low (1)
9
Low (1)
18
Low (2)
0.6
Low (1)
Rosia Road Clocktower (mobile)

Updated:
N/M N/A N/M N/A N/A N/A
Secretary' Lane (mobile)

Updated: 15/10/2024 05:00
N/M -5 N/M 6
Low (1)
16
Low (1)
0.1
Low (1)