University of California Press

Figure 2

Time-series variation of reactive gases (O3, NO, NO2, NOy, CO, SO2, and HCHO), PM2.5 mass and composition (NO3–, SO42–, NH4+, and OC), meteorological parameters (temperature, relative humidity, and boundary layer height), and total VOCs classified into four subgroups (alkanes, alkenes and alkynes, aromatics, and OVOCs). The C2–C5 hydrocarbons were measured at the Gwangjin site near Olympic Park. The PM2.5 composition is given as the daily average. DOI: https://doi.org/10.1525/elementa.444.f2

Time-series variation of reactive gases (O₃, NO, NO₂, NO_y, CO, SO₂, and HCHO), PM_2.5 mass and composition (NO₃^–, SO₄^2–, NH₄⁺, and OC), meteorological parameters (temperature, relative humidity, and boundary layer height), and total VOCs classified into four subgroups (alkanes, alkenes and alkynes, aromatics, and OVOCs). The C2–C5 hydrocarbons were measured at the Gwangjin site near Olympic Park. The PM_2.5 composition is given as the daily average. DOI: https://doi.org/10.1525/elementa.444.f2

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