ロスアンゼルスの光化学スモッグ (その2)

桑田 一弘
1974 Journal of Environmental Conservation Engineering  
Rule156.Alert Stages Fortoxic Air Pollutants* (ln parts Per million parts of air) a.Sum of nitrogen dioxide and nitric oxide. 1973•h,(California Institute of Technolog).
doi:10.5956/jriet.3.756 fatcat:hwsqjdho3ffd5poqwduw5nlhwq