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Proficiency Testing - Nitrogen Dioxide in Ambient Air (Ambient NO2)


Nitrogen dioxide testing in ambient airThis scheme assesses the performance of laboratories making roadside measurements of environmental nitrogen dioxide concentrations.







Analytes in the scheme

Analyte
Loading Range µg
Medium
Organics - Chemical Desorption
Nitrogen dioxide
0.4 - 3
Absorbed onto triethanolamine(TEA) on a grid in a Palmes tube


Operation of the scheme
Four samples are sent to participants every 3 months. Laboratories have one month to analyse the sample (preferably alongside real samples) and report the results.

Schedule

Round Number
Samples Despatched
(Week Commencing)
Results Deadline
Reports Despatched (Week Commencing
100
14 January 2008
15 February 2008
14 March 2008
101
14 April 2008
23 May 2008
9 June 2008
102
23 June 2008
8 August 2008
1 September 2008
104
29 September 2008
7 November 2008
24 November 2008
104
12 January 2009
20 February 2009
16 March 2009

  • Indicative dispatch dates. Participants will be notified by email of any changes if dispatches do not occur within stated week. 
  • HSL uses Royal Mail to dispatch samples and reports so please allow the following lead-times
    • 2 – 4 days for UK customers
    • 4– 6 days for European customers
Further information
 For more information on the scheme or to join please use our online enquiry form, or contact:

Hannah Clark
Health and Safety Laboratory
Harpur Hill
Buxton
Derbyshire
SK17 9JN

Tel: 01298 218553
Fax: 01298 218572
Email: proficiency.testing@hsl.gov.uk


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