Black carbon
(µg/m
3
)
1x
2x
Nitric oxide
(ppbv)
1x
3x
5x
7x
Nitrogen dioxide (NO
2
)
(ppbv)
1x
2x
Particulate number
(particles/cm
3
)
1x
2x
3x
Health metrics
0
10
15
Vulnerable people and places
0
50
100