Lamma Power Station Extension - Air Quality Monitoring Data for Unit L9 (Operation)

Month:	January 2007

Date	Daily Maximum Stack NOx Concentration
	(mg/Nm3)^#
1/1/2007	72
2/1/2007	72
3/1/2007	68
4/1/2007	68
5/1/2007	74
6/1/2007	76
7/1/2007	79
8/1/2007	79
9/1/2007	78
10/1/2007	79
11/1/2007	72
12/1/2007	N.A. *
13/1/2007	N.A. *
14/1/2007	N.A. *
15/1/2007	N.A. *
16/1/2007	N.A. *
17/1/2007	N.A. *
18/1/2007	N.A. *
19/1/2007	N.A. *
20/1/2007	N.A. *
21/1/2007	N.A. *
22/1/2007	N.A. *
23/1/2007	N.A. *
24/1/2007	N.A. *
25/1/2007	78
26/1/2007	77
27/1/2007	82 **
28/1/2007	82 **
29/1/2007	84 **
30/1/2007	74
31/1/2007	N.A. *

Note: # - Hourly average value. Expressed as at 0ºC, 101.325kPa, dry and
corrected to 15% O2 condition.
* - Unit L9 was not on load.
** - The action level of 81 mg/Nm³ was exceeded.