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dans le bassin atmosphérique de puget sound, les émissions totales de ces contaminants étaient de 607 kilotonnes en 2005. ((wa doe), 2007).
so2: 5%, pm coarse: 5%, pm2.5: 5%, nox: 29%, voc anthropogenic: 26%, voc natural: 31%, nh3: 3%. in the puget sound airshed, total emissions of these contaminants were 607 kilotonnes in 2005. (wa doe, 2007).