He upper and decrease lines from the box represent the 1st and 3rd of 17 Atmosphere 2021, 12, x The PEER inside the box is the median mass concentration for every single season. The upper and FOR line Evaluation 10 quartiles. The upper and represent the 1st and values of 99 and 1 , respectively. The asterisks above the prime lower lines on the box reduce whiskers represent 3rd quartiles. The upper and reduce whiskers representline and beneath of 99 and are respectively. The asterisks above valuesthe bottom line1 , the maximum and minimum values. the major line and below the bottom line would be the maximum and minimum values.3.four. Liquid/Solid Supply Evaluation and Implications for Brown Carbon With spectral EBC concentration differences, Equations (8)10) could possibly be utilized to divide EBC concentrations into liquid sources (for example gasoline) and strong sources (for example coal). In this study, every day average liquid and solid EBC concentrations had been calculated. Every single day is categorized as a liquid day (liquid supply dominates) or a strong day (strong supply dominates), as shown in Figure 6. For the whole study period, liquid source days accounted for 70 , suggesting that EBCs in Xuzhou mostly derived from liquid fuel combustion. Through the nonheating season, liquid supply days accounted for 77 . Seventy-two % of heating days were solid supply days, suggesting that the coal combustion for heating on nowadays largely changed the source of EBC.Figure six. Liquid and solid source analysis for the heating season, nonheating season and complete year. Figure six. Liquid and solid supply evaluation for the heating season, nonheating season and entire year. Table two. this paper,(EBC370)/(EBC880). In Statistics of (EBC370) is measured EBC concentrations at 370 nm band, and(EBC880) will be the corresponding worth at 880 nm band. (EBC370) should theoretically be Season Minimum Maximum PHGDH-inactive Data Sheet typical Standard 12-Hydroxydodecanoic acid supplier Deviation greater than (EBC880), as brown carbon aerosol is much more absorbing at shorter. Depending on Heating season 0.177 1.838 1.106 this characteristic, (EBC370)/(EBC880) can indicate the seasonal influence0.277 of brown carNonheating season 0.533 1.026 1.071 0.262 bon to a certain extent [25]. The distinction in between (EBC370)/(EBC880) for the heating season and nonheating season in Xuzhou for the duration of the analysis period is shown in Table two. The typical value for the heating season is 1.106, as well as the typical worth for the nonheating season is 1.071. This shows that the proportion of brown carbon in EBC through the heating season is considerably higher than that for the duration of the nonheating season, along with the maximum value and normal deviation of your heating season are significantly higher than those for the nonheating season, indicating that brown carbon aerosols constitute a larger proportion throughout the heating season but are unstable.Table 2. Statistics of (EBC370)/(EBC880)Atmosphere 2021, 12,Atmosphere 2021, 12, x FOR PEER REVIEW10 of11 of3.5. Analysis of Contribution of Potential Sources of Xuzhou. Xuzhousource of possible air pollutants, the mixed single-particle northwest To recognize the belongs to the monsoon climate zone and experiences Lagrangian winds and trajectory winds in the spring and winter and southeast winds and southwest integrated northeast (HYSPLIT) model created by the Air Resources Laboratory (ARL) winds in theanalyze the hourly average EBC concentrationsof the monsoon inng/m3 following was applied to summer and autumn. Owing for the influence above three.00 103 the air on EBC transportation, the north w.
