Key Source Analysis 1991

Component Key source categories (Sorted from high to low from left to right)Total (%) Not listed
SOx1 A 4 b i
(35.3%)
1 A 1 a
(16.2%)
1 A 2 a
(7.5%)
1 A 2 d
(6.9%)
1 A 2 f
(6.3%)
1 A 4 a
(5.3%)
1 A 1 b
(3.0%)
1 A 3 b iii
(2.8%)
1 A 2 e
(2.7%)
1 A 3 b i
(2.6%)
88.74
NOx1 A 3 b i
(31.6%)
1 A 3 b iii
(16.4%)
1 A 2 f
(12.3%)
1 A 4 c ii
(7.4%)
1 A 4 b i
(6.5%)
1 A 1 a
(4.4%)
1 A 2 d
(3.5%)
1 A 3 b ii
(2.8%)
4 D 1
(2.5%)
1 A 2 a
(2.5%)
90.04
NH34 B 1 b
(26.0%)
4 B 1 a
(20.8%)
4 B 8
(19.7%)
4 D 1
(15.1%)
4 B 9
(9.9%)
1 A 3 b i
(2.2%)
4 B 3
(1.4%)
95.10
NMVOC1 A 4 b i
(20.5%)
1 A 3 b i
(15.5%)
3 A
(14.0%)
3 D
(12.3%)
1 A 3 b v
(6.6%)
3 C
(6.2%)
3 B
(4.2%)
2 B 5
(3.5%)
1 A 4 c ii
(2.8%)
1 B 2 a iv
(2.6%)
88.15
CO1 A 4 b i
(36.9%)
1 A 3 b i
(31.6%)
1 A 2 a
(14.8%)
1 A 4 b ii
(2.1%)
1 A 4 c ii
(2.0%)
1 A 3 b ii
(1.7%)
1 A 2 f
(1.7%)
2 C
(1.5%)
1 A 4 c i
(1.1%)
6 A
(1.1%)
94.61
Pb1 A 3 b i
(65.0%)
2 C
(15.8%)
1 A 3 b ii
(5.6%)
1 A 2 f
(2.8%)
1 A 4 b i
(2.5%)
1 A 2 b
(2.2%)
1 A 3 a ii (i)
(1.0%)
1 A 4 b ii
(1.0%)
95.90
Hg1 A 2 f
(28.8%)
1 A 4 b i
(21.5%)
1 A 1 a
(16.7%)
2 B 5
(12.4%)
2 C
(11.8%)
1 A 2 d
(3.3%)
6 C
(2.2%)
96.70
Cd2 C
(26.5%)
1 A 4 b i
(24.3%)
1 A 2 f
(9.1%)
1 A 2 d
(9.1%)
1 A 1 b
(6.9%)
1 A 2 b
(4.6%)
1 A 3 b vi
(3.9%)
1 A 1 a
(3.9%)
6 C
(3.2%)
1 A 4 a
(2.6%)
94.11
DIOX1 A 4 b i
(34.4%)
2 C
(25.0%)
1 A 2 b
(18.4%)
6 C
(13.1%)
1 A 3 b i
(2.2%)
1 A 4 c i
(1.3%)
1 A 4 a
(1.2%)
95.70
PAH1 A 4 b i
(48.9%)
2 C
(35.4%)
1 A 3 b i
(2.7%)
2 A 7
(2.3%)
2 B 5
(2.2%)
1 A 4 c i
(2.1%)
4 F
(1.3%)
1 A 3 b iii
(1.2%)
96.10
HCB1 A 4 b i
(66.4%)
1 A 2 b
(10.2%)
2 C
(8.7%)
3 D
(7.5%)
1 A 4 c i
(3.2%)
96.00