Table C.1 Worst-case SO₂ Concentrations before and after the Retrofit

ASR	Source B Before Retrofit^(a) μg m^-3	Source B After Retrofit^(b) μg m^-3	Other Sources^(c) μg m^-3	Back-ground^(a)	Total Before Retrofit^(a) μg m^-3	Total After Retrofit^(d) μg m^-3	Retrofit Impact μg m^-3	Retrofit Impact %
1	0	0	113	23	136	136	0	0
2	1	0	91	23	115	114	-1	-1
3	0	0	45	23	68	68	0	0
4	9	1	164	23	196	188	-8	-4
5	0	0	133	23	156	156	0	0
6	9	1	146	23	178	170	-8	-4
7	65	10	249	23	337	282	-55	-16
8	5	1	133	23	161	157	-4	-3
9	22	3	149	23	194	175	-19	-10
10	93	14	266	23	382	303	-79	-21
11	8	1	65	23	96	89	-7	-7
12	4	1	80	23	107	104	-3	-3
13	1	0	27	23	51	50	-1	-2
14	0	0	40	23	63	63	0	0
15	27	4	55	23	105	82	-23	-22
16	16	2	70	23	109	95	-14	-13
17	34	5	94	23	151	122	-29	-19
18	39	6	76	23	138	105	-33	-24
19	4	1	40	23	67	64	-3	-5
20	1	0	66	23	90	89	-1	-1
21	16	2	121	23	160	146	-14	-9
22	103	15	35	23	161	73	-88	-55
23	165	24	69	23	257	116	-141	-55
24	308	45	157	23	488	225	-263	-54
25	176	26	83	23	282	132	-150	-53
26	128	19	182	23	333	224	-109	-33
27	14	2	195	23	232	220	-12	-5
28	116	17	261	23	400	301	-99	-25
29	262	39	412	23	697	474	-223	-32
30	178	26	193	23	394	242	-152	-39
31	83	12	79	33	195	124	-71	-36
32	92	14	79	33	204	126	-78	-38
33	20	3	75	23	118	101	-17	-14
34	34	5	100	23	157	128	-29	-18
35	110	16	183	23	316	222	-94	-30
36	135	20	217	23	375	260	-115	-31
37	46	7	117	23	186	147	-39	-21
38	66	10	154	23	243	187	-56	-23
39	68	10	109	23	200	142	-58	-29
40	124	18	153	33	310	204	-106	-34
41	47	7	79	33	159	119	-40	-25
42	119	17	211	23	353	251	-102	-29
43	87	13	153	23	263	189	-74	-28
44	45	7	93	23	161	123	-38	-24
45	98	14	168	23	289	205	-84	-29
46	124	18	203	23	350	244	-106	-30
47	69	10	115	33	217	158	-59	-27
48	58	9	101	33	192	143	-49	-26
49	25	4	89	23	137	116	-21	-16
50	67	10	145	23	235	178	-57	-24
51	110	16	172	23	305	211	-94	-31
52	44	6	120	23	187	149	-38	-20
53	69	10	160	23	252	193	-59	-23
54	245	36	349	23	617	408	-209	-34
55	67	10	101	33	201	144	-57	-28
56	86	13	130	33	249	176	-73	-29
57	73	11	151	23	247	185	-62	-25
58	89	13	157	23	269	193	-76	-28
59	99	15	166	23	288	204	-84	-29
60	73	11	190	23	286	224	-62	-22
61	130	19	225	23	378	267	-111	-29
62	85	12	175	23	283	210	-73	-26
63	59	9	150	23	232	182	-50	-22
64	127	19	260	23	410	302	-108	-26
65	107	16	237	23	367	276	-91	-25
66	149	22	245	23	417	290	-127	-30
67	118	17	203	23	344	243	-101	-29
68	40	6	128	23	191	157	-34	-18
69	178	26	282	23	483	331	-152	-31
Notes: (a) From Table 5-1c of Project Profile for Lamma Power Station Conversion of Two Existing Gas Turbines into a Combined Cycle Unit, 2000 (b) Equal to Source B contribution before the retrofit reduced by a factor of 0.147 (c) Derived from Table 5-1c of Project Profile for Lamma Power Station Conversion of Two Existing Gas Turbines into a Combined Cycle Unit, 2000 (d) Sum of Source B after the retrofit, other sources and the background

Table C.2 Worst-case Cumulative NO₂ Concentrations after the Retrofit

ASR	Source B^(a) μg m^-3	Other Sources^(b) μg m^-3	Distance Correction^(c)	Background^(a) μg m^-3	Total^(d) μg m^-3
1	0	29	0.52	49	64
2	0	23	0.81	49	68
3	0	13	0.38	49	54
4	1	43	0.71	49	80
5	0	35	0.96	49	83
6	1	37	0.93	49	84
7	10	49	0.96	49	106
8	1	35	0.72	49	75
9	3	36	0.76	49	79
10	14	57	0.72	49	100
11	1	20	0.42	49	58
12	1	22	0.69	49	65
13	0	5	0.40	49	51
14	0	8	0.71	49	55
15	4	12	1.00	49	65
16	3	14	0.93	49	65
17	5	20	0.91	49	72
18	9	12	1.44	49	79
19	1	9	0.50	49	54
20	0	16	0.82	49	62
21	2	20	1.00	49	71
22	16	10	0.69	49	67
23	26	23	0.92	49	94
24	48	34	1.23	49	150
25	27	14	0.83	49	83
26	20	29	1.09	49	102
27	2	47	0.61	49	79
28	16	58	1.25	49	141
29	41	72	1.90	49	264
30	28	35	1.68	49	154
31	13	16	1.92	80	135
32	14	15	1.93	80	136
33	3	20	1.69	49	88
34	5	24	1.76	49	100
35	17	34	1.54	49	128
36	21	40	1.52	49	142
37	7	27	1.77	49	109
38	10	33	1.64	49	119
39	12	17	1.61	49	95
40	19	22	1.88	80	158
41	7	17	1.84	80	125
42	18	39	1.47	49	133
43	13	28	1.49	49	110
44	7	27	1.55	49	102
45	15	28	1.55	49	116
46	19	36	1.75	49	146
47	11	21	1.93	80	142
48	9	19	1.92	80	134
49	4	24	1.47	49	90
50	10	28	1.50	49	106
51	17	30	1.84	49	135
52	7	26	1.46	49	97
53	11	34	1.41	49	113
54	38	60	1.81	49	226
55	10	19	2.00	80	137
56	13	22	2.00	80	150
57	11	34	1.40	49	112
58	14	32	1.36	49	111
59	15	33	1.70	49	130
60	11	42	1.39	49	123
61	20	43	1.37	49	135
62	13	36	1.60	49	127
63	9	33	1.53	49	114
64	20	48	1.52	49	153
65	17	46	1.52	49	144
66	23	42	1.79	49	165
67	18	35	1.80	49	145
68	6	30	1.68	49	109
69	28	48	1.85	49	189
Notes: (a) From Table 5-1d of Project Profile for Lamma Power Station Conversion of Two Existing Gas Turbines into a Combined Cycle Unit, 2000 (b) Derived from Table 5-1d of Project Profile for Lamma Power Station Conversion of Two Existing Gas Turbines into a Combined Cycle Unit, 2000 (c) A correction factor based on the Janssen formula[1] that links the NO to NO2 conversion rate to the prevailing meteorological conditions, distance to the receptor and the background ozone concentrations (d) Sum of Source B and other sources multiplied by the distance correction and the background

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(1) [1] Janssen L.H.J.M. et al. A Classification of NO Oxidation Rates in Power Plant Plumes Based on Atmospheric Conditions. Atmospheric Environment, 22, 43-53, 1988