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AIR QUALITY MATTERS |
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Borough of Brent |
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The following charts show how the annual average
concentration of NO2
and PM10 have changed since 2009 at AURN reference stations
in the Borough of Brent. The trend in NO2 is unclear but
probably downwards. In contrast, concentrations of PM10 are
clearly rising.
The
following three charts illustrate trends in average annual
concentrations of NO2 measured with diffusion tubes around the
borough. Concentrations at most sites shown on the uppermost
and lowermost charts have tended to increase since the
beginning of this decade. Prior to 2018, the trend at sites shown on the middle chart
was
unclear or rising. Data for 2018 is missing. Reasons
for the substantial apparent improvement between 2017 and
2019 are unclear.
Source:
based on
Borough of
Brent
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For further information, please contact: info@airqualitymatters.uk |
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