24 Hour Summary

The table below shows the 24 hour summary for the automatic monitoring sites.

Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Carbon Monoxide
mg/m3
Benzene
µg/m3
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Rosia Road
Timeseries Graph
n/m43
(1 Low)
81
(1 Low)
0.4
(1 Low)
2.62 Offline 17/10/2017
13:00
Withams Road
Timeseries Graph
n/m84
(1 Low)
n/mn/mn/mn/m 17/10/2017
13:00
Bleak House
Timeseries Graph
103
(4 Moderate)
12
(1 Low)
n/mn/mn/mn/m 17/10/2017
13:00

Note: Values are based on provisional data and are GMT+1 hour ending.All data are subject to verification and change until marked as RATIFIED. Users are reminded that caution should be taken when using non-ratified data, as the data may change as a result of the ratification process.

Automatic PM10 measurements are provided for public information purposes and are indicative concentrations only. For EU compliance purposes PM10 measurment data from the Gibraltar non automatic daily particle monitoring are reported.

Key to labels and bands

  • n/m - not measured
  • Offline - Temporarily offline and under investigation. The service will be restored as soon as possible.
  • Routine Service - Temporarily offline as a result of routine equipment maintenance and quality assurance checks. The service will be restored as soon as possible.