City | Particles | Ozone |
APHEA 28 | 3.5 (1.0–6.0) | 4.3 (1.1–6.5) |
Birmingham, AL, USA 29 | 12 (3.5–22) | 3.0 (−2.5–10) |
Detroit, MI, USA 30 | 20 (9.0–32) | 6.0 (1.5–10) |
Spokane, WA, USA 33 | 17 (7.1–28) | 13 (1.1–25) |
Minneapolis, MN, USA 31 | 25 (10–53) | 3.0 (−3.9–7.0) |
Sydney, Australia 34 | 5.1 (−0.6–10) | 1.5 (−7.6–12) |
Amsterdam, Barcelona, London, Milano, Paris, Rotterdam Adapted from reference 28