130419-03MN107-App G7 Air Monitoring-IA2E.pdf - NIRB
130419-03MN107-App G7 Air Monitoring-IA2E.pdf - NIRB
130419-03MN107-App G7 Air Monitoring-IA2E.pdf - NIRB
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Table -Apx 3. Mean concentration of NO 2 at Meadowbank monitoring stations DF-1 and DF-2. * One set ofsamples lost in transit and re-sent (results pending ). ‡ One sampler had a missing cartridge at time ofcollection.StartEndNO 2 (ppb)DF-1DF-217/12/2011 29/01/2012 1.3 529/01/2012 29/02/2012 0.8 1.329/02/2012 30/03/2012 ‡ 2.230/03/2012 27/04/2012 0.3 1.327/04/2012 25/05/2012 0.9 4.125/05/2012 22/06/2012 0.2 2.322/06/2012 21/07/2012 2.3 6.821/07/2012 18/08/2012 0.1 1.118/08/2012 15/09/2012 1.2 1.915/09/2012 12/10/2012 0.5 1.912/10/2012 10/11/2012 0.2 3.610/11/2012 07/12/2012 * *07/12/2012 12/01/2013 1.4 5.2