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机译:Unexpected slowdown of US pollutant emission reduction in the past decade
Wageningen Univ, Dept Meteorol & Air Qual, NL-6700 Wageningen, Netherlands;
Natl Ctr Atmospher Res, Atmospher Chem Observat & Modeling Lab, Boulder, CO 80301 USA;
NOAA, Chem Sci Div, Earth Syst Res Lab, Boulder, CO 80305 USACALTECH, Jet Prop Lab, Pasadena, CA 91009 USAJapan Agcy Marine Earth Sci & Technol, Res & Dev Ctr Global Change, Yokohama, Kanagawa 2360001, JapanUniv Colorado, Dept Mech Engn, Boulder, CO 80309 USAUniv Toronto, Dept Phys, Toronto, ON M5S 1A7, CanadaUniv Arizona, Dept Hydrol & Atmospher Sci, Tucson, AZ 85721 USAColorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA;
nitrogen oxides; emission regulations; decadal scale variation;