Lamma Power Station Extension - Air Quality Monitoring Data for Unit L9 (Operation)
Month:	December 2011
Date	Daily Maximum Stack NOx Concentration
	(mg/Nm3)#
1/12/2011	71
2/12/2011	72
3/12/2011	73
4/12/2011	74
5/12/2011	70
6/12/2011	68
7/12/2011	66
8/12/2011	72
9/12/2011	73
10/12/2011	81*
11/12/2011	78
12/12/2011	76
13/12/2011	76
14/12/2011	73
15/12/2011	73
16/12/2011	76
17/12/2011	75
18/12/2011	75
19/12/2011	69
20/12/2011	71
21/12/2011	71
22/12/2011	73
23/12/2011	73
24/12/2011	78
25/12/2011	80
26/12/2011	75
27/12/2011	70
28/12/2011	71
29/12/2011	71
30/12/2011	68
31/12/2011	69
Note: # - Hourly average value.  Expressed as at 0ºC, 101.325kPa, dry and
corrected to 15% O2 condition.
* - Exact reading was 80.6 mg/Nm3, just below the action level of 81 mg/Nm3.