|
Bulk chemical composition (μg mg
−1
PM
2.5
)
|
| Water-soluble organic carbon |
78.1 |
89.9 |
49.9 |
67.7 |
106 |
155 |
| Na+
|
1.34 |
1.42 |
1.30 |
0.71 |
1.35 |
0.52 |
| NH4+
|
73.3 |
47.7 |
33.4 |
50.0 |
27.6 |
18.4 |
| K+
|
9.97 |
9.71 |
4.09 |
6.88 |
10.40 |
11.1 |
| Ca2+
|
6.95 |
3.49 |
6.35 |
2.53 |
11.40 |
6.61 |
| Cl−
|
2.23 |
11.5 |
0.89 |
10.8 |
4.55 |
6.47 |
| SO42−
|
69.9 |
77.7 |
92.2 |
91.3 |
79.8 |
40.7 |
| NO3−
|
39.8 |
11.20 |
0 |
6.89 |
0 |
3.57 |
| |
|
Metal(loid)s (ng mg
−1
PM
2.5
)
|
| V |
9.62 |
3.41 |
8.53 |
1.14 |
2.28 |
0.63 |
| Cr |
9.12 |
6.01 |
11.1 |
8.8 |
13.2 |
7.37 |
| Mn |
164 |
118 |
68 |
92.3 |
137 |
77.5 |
| Fe |
550 |
1620 |
1070 |
10.8 |
399 |
145 |
| Co |
0.83 |
0.88 |
1.14 |
0.16 |
0.69 |
1.99 |
| Ni |
21 |
135 |
49.8 |
0 |
4.23 |
0 |
| Cu |
70.4 |
52.7 |
32.3 |
0 |
10.7 |
10.9 |
| Zn |
929 |
707 |
1310 |
655 |
417 |
220 |
| As |
37.9 |
19.8 |
37.4 |
38.2 |
40.3 |
13.7 |
| Se |
16.9 |
27.6 |
26.4 |
57.4 |
13.2 |
14.4 |
| Cd |
13.4 |
12.9 |
8.97 |
17.4 |
13.6 |
11.7 |
| Sn |
12.9 |
0 |
5.34 |
0 |
6.73 |
0 |
| Sb |
14.8 |
6.75 |
6.02 |
5.17 |
44.7 |
3.56 |
| Ba |
53.2 |
28.7 |
52.8 |
24.4 |
42.1 |
28.60 |
| Pb |
187 |
219 |
104 |
420 |
36.6 |
55.7 |
| |
|
Organic molecular markers (ng mg
−1
PM
2.5
)
|
| Benzo(b)fluoranthene |
60.8 |
322 |
66.8 |
434 |
123 |
79.2 |
| Benzo(k)fluoranthene |
41 |
127 |
18.2 |
84.6 |
109 |
38.4 |
| Benzo(j)fluoranthene |
2.56 |
32.9 |
1.41 |
10.7 |
16 |
11.7 |
| Benzo(e)pyrene |
42.2 |
161 |
69.1 |
372 |
90 |
37.4 |
| Benzo(a)pyrene |
15.1 |
138 |
11.2 |
86.5 |
81.9 |
49.9 |
| Perylene |
5.19 |
34.9 |
3.35 |
8.13 |
15.5 |
7.5 |
| Indeno(1,2,3-cd)pyrene |
72 |
230 |
43 |
217 |
171 |
84.9 |
| Benzo(ghi)perylene |
66.1 |
218 |
82.5 |
492 |
145 |
71.1 |
| Dibenz(ah)anthracene |
6.7 |
34 |
18.4 |
159 |
13 |
8.5 |
| Picene |
8 |
38 |
20.2 |
123 |
14.8 |
12.1 |
| Coronene |
13.4 |
37.9 |
17.4 |
96.9 |
29.5 |
17.4 |
| Dibenzo(ae)pyrene |
7.84 |
26.3 |
31.6 |
134 |
11.4 |
0 |
|
Sum (5- & 6-ring PAHs)
|
341
|
1400
|
383
|
2220
|
820
|
418
|
| 17α(H)-22,29,30-Trisnorhopane |
1.41 |
34.5 |
0 |
4.13 |
0 |
0 |
| 17α(H)-21β(H)-30-Norhopane |
3.29 |
66 |
5.5 |
8.79 |
2.32 |
8.95 |
| 17α(H)-21β(H)-Hopane |
6.05 |
42.2 |
8.99 |
12.4 |
4.41 |
9.18 |
| Phthalic acid |
140 |
250 |
203 |
159 |
120 |
155 |
| Isophthalic acid |
16.4 |
25 |
7.8 |
27.8 |
13.1 |
30.8 |
| Terephthalic acid |
456 |
378 |
246 |
973 |
246 |
429 |
| 1,2,4-Benzenetricarboxylic acid |
65.2 |
61.7 |
54.9 |
53.7 |
53 |
34.1 |
| 1,2,3-Benzenetricarboxylic acid |
46.3 |
45 |
31.1 |
45.1 |
30.4 |
20.8 |
| 3-Hydroxyglutaric acid |
5.92 |
1.82 |
32 |
0 |
54.9 |
0 |
| 2-Hydroxy-4-isopropyladipic acid |
195 |
240 |
201 |
151 |
568 |
94 |
| Levoglucosan |
3720 |
4280 |
1240 |
3750 |
9700 |
8310 |
