One of London’s longest running monitoring sites re-opened on 15th July having been closed for the past 2 ½ years. The Enfield 1 monitoring site was installed in Bush hill Park library in mid 1995. The site was part of a borough led an investment programme that kick-started the development of the London network as we know it today.

. Along with monitoring sites in Greenwich, Tower Hamlets, Kensington, Haringey, Ealing, Croydon and Sutton the Enfield 1 site was amongst the first in the UK to use on-board instrument logging, a site design pioneered by King’s, dispensing with the expense of a separate data logging system.

The site provided valuable measurements to track changes in NOX and NO2 concentrations in Enfield and suburban north London until early 2009 when the library was closed for refurbishment. Re-opening the monitoring site will allow this strategically important time series to continue.

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Item date 20/07/2011