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CHAPTER 2 - EXAMPLES OF AIR POLLUTION PROBLEMS
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Modern urban Air Pollution Stagnant air Continuing emissions "summer" (photochemical) smog: NO, NO2, CxHy, UV-rad: == O3 (reactions worked out on blackboard) Winter (cold weather) smog: fine or ultra-fine particles == health effects Mixture is different in different cities Traffic important source Toxicological mechanism still unknown Health effects even at low concentrations (from 40 mg/m3?)