Chelmsford.airqualitydata.com - Chelmsford Borough Council Air Quality Monitoring

Air Pollution in Chelmsford for Sat 31 Jul 2010:

LOW

MODERATE

HIGH

VERY HIGH

find out more about the air pollution index

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Graphs

To see a specific graph please specify the parameters to the right. The default view within the index banded graphs is a colour background which matches the index system of Low (Index 1,2 or 3), Moderate (Index 4,5,or 6), High (Index 7, 8 or 9) or Very High (Index 10). Only the pollutants that have been assisgned an index band can be plotted within this section. Therefore some pollutants measured at certain stations may appear to be "missing". To view these pollutants please click the link below for the Base Data Graphs where all pollutants are available for graphing.

Alternatively, see the Current Readings page for today's measurements - again. you are presented with the option to view the banded data or base data.

For more information about air quality in the rest of the UK please see the Air Index Archive

See the Base Data Graphs here.

Please note all data is displayed as Greenwich Mean Time (GMT)

The data supplied are non-validated and for information only.

Generate a Graph:

Select a monitoring station

You are able to view one substance for a maximum of six sites.

Select up to six montioring stations and then choose a substance below.

Chelmsford Baddow Road

Chignal St James Site

Rainsford Lane (A1016)

Springfield Road (B1137)

Colour coding: Each station is represented by a colour (see the squares next to each station name). To see which station monitors which substance check the coloured squares under each pollutant.

Air Quality data

NO₂

O₃

PM₁₀

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Please be aware that graphs can take a few moments to display, please be patient while we retrieve your required data