Table 2.
PM2.5 and PM2.5 component annual average concentrations (μg/m3) by area and MESA Air monitor
| City | Monitor* | Type | PM2.5** | EC** | OC** | Silicon | Sulfur |
|---|---|---|---|---|---|---|---|
| LA County |
L001 |
non-roadside |
16.3 |
2.0 |
2.6 |
0.15 |
1.18 |
| |
L002 |
roadside |
16.8 |
2.1 |
2.4 |
0.16 |
1.22 |
| |
LC001 |
non-roadside |
13.4 |
1.5 |
1.6 |
0.13 |
1.20 |
| |
LC002 |
non-roadside |
15.3 |
1.6 |
2.2 |
0.14 |
1.23 |
| |
LC003 |
roadside |
13.3 |
1.4 |
1.4 |
0.12 |
1.18 |
| Chicago |
C001 |
non-roadside |
12.2 |
1.2 |
1.7 |
0.10 |
1.13 |
| |
C002 |
non-roadside |
13.7 |
1.3 |
1.8 |
0.13 |
1.19 |
| |
C004 |
non-roadside |
14.6 |
1.6 |
2.0 |
0.10 |
1.31 |
| |
C006 |
non-roadside |
13.8 |
1.3 |
1.8 |
0.12 |
1.26 |
| |
C007 |
roadside |
15.5 |
1.7 |
2.1 |
0.12 |
1.30 |
| Baltimore |
B001 |
roadside |
15.6 |
2.1 |
2.4 |
0.11 |
1.69 |
| |
B003 |
non-roadside |
14.7 |
1.4 |
2.3 |
0.09 |
1.69 |
| |
B004 |
non-roadside |
13.9 |
1.4 |
2.1 |
0.08 |
1.67 |
| |
B005 |
non-roadside |
12.7 |
1.0 |
1.9 |
0.07 |
1.53 |
| St. Paul |
S001 |
roadside |
11.0 |
1.1 |
1.9 |
0.12 |
0.87 |
| |
S002 |
non-roadside |
10.2 |
0.7 |
1.6 |
0.11 |
0.85 |
| |
S003 |
non-roadside |
10.5 |
0.8 |
1.7 |
0.11 |
0.83 |
| NY |
N001 |
non-roadside |
13.2 |
2.3 |
1.9 |
0.11 |
1.46 |
| |
N002 |
roadside |
15.4 |
3.0 |
1.9 |
0.15 |
1.36 |
| Forsyth County |
W001 |
non-roadside |
13.2 |
1.5 |
2.6 |
0.09 |
1.62 |
| (Winston-Salem) |
W002 |
non-roadside |
13.2 |
1.1 |
2.5 |
0.10 |
1.59 |
| |
W003 |
roadside |
13.9 |
1.2 |
2.6 |
0.10 |
1.66 |
| W004 | non-roadside | 13.0 | 1.0 | 2.4 | 0.09 | 1.67 |
* May 2, 2007 – Apr 16, 2008, see Figure 1.
**PM2.5, particulate matter less than or equal to 2.5 μm in aerodynamic diameter; EC, elemental carbon; OC, organic carbon.