Relative
Humidity Adjustment Factors, f(RH) Correction factors for converting dry extinction values to ambient extinction
and vise versa. These factors are used in the
Regional Haze Rule
guidance documents .
The f(RH) values are also available in an excel spread sheet:
f_RH_regionalHazeRule.xls
Table A-1 Values for f(RH) determined from the growth of ammonium
sulfate
RH
f(RH)
RH
f(RH)
RH
f(RH)
1
1
34
1
67
2.03
2
1
35
1
68
2.08
3
1
36
1
69
2.14
4
1
37
1.02
70
2.19
5
1
38
1.04
71
2.25
6
1
39
1.06
72
2.31
7
1
40
1.08
73
2.37
8
1
41
1.1
74
2.43
9
1
42
1.13
75
2.5
10
1
43
1.15
76
2.56
11
1
44
1.18
77
2.63
12
1
45
1.2
78
2.7
13
1
46
1.23
79
2.78
14
1
47
1.26
80
2.86
15
1
48
1.28
81
2.94
16
1
49
1.31
82
3.03
17
1
50
1.34
83
3.12
18
1
51
1.37
84
3.22
19
1
52
1.41
85
3.33
20
1
53
1.44
86
3.45
21
1
54
1.47
87
3.58
22
1
55
1.51
88
3.74
23
1
56
1.54
89
3.93
24
1
57
1.58
90
4.16
25
1
58
1.62
91
4.45
26
1
59
1.66
92
4.84
27
1
60
1.7
93
5.37
28
1
61
1.74
94
6.16
29
1
62
1.79
95
7.4
30
1
63
1.83
96
9.59
31
1
64
1.88
97
14.1
32
1
65
1.93
98
26.4
33
1
66
1.98
