He upper and decrease lines of your box represent the 1st and 3rd of 17 Atmosphere 2021, 12, x The PEER inside the box is definitely the median mass concentration for each and every season. The upper and FOR line Assessment ten quartiles. The upper and represent the 1st and values of 99 and 1 , respectively. The asterisks above the leading decrease lines in the box decrease whiskers represent 3rd quartiles. The upper and decrease whiskers representline and under of 99 and are respectively. The asterisks above valuesthe bottom line1 , the maximum and minimum values. the top rated line and below the bottom line will be the maximum and minimum values.3.4. Liquid/Solid Source Evaluation and Implications for Brown SS-208 custom synthesis Carbon With spectral EBC concentration differences, Equations (8)ten) could be utilized to divide EBC concentrations into liquid sources (like gasoline) and strong sources (which include coal). Within this study, everyday typical liquid and solid EBC concentrations had been calculated. Every single day is categorized as a liquid day (liquid supply dominates) or maybe a strong day (strong source dominates), as shown in Figure six. For the entire investigation period, liquid source days accounted for 70 , suggesting that EBCs in Xuzhou mainly derived from liquid fuel combustion. In the course of the nonheating season, liquid supply days accounted for 77 . Seventy-two percent of heating days had been solid supply days, suggesting that the coal combustion for heating on lately largely changed the source of EBC.Figure 6. Liquid and solid supply evaluation for the heating season, nonheating season and complete year. Figure 6. Liquid and strong supply analysis for the heating season, nonheating season and complete year. Table two. this paper,(EBC370)/(EBC880). In Statistics of (EBC370) is measured EBC concentrations at 370 nm band, and(EBC880) may be the corresponding value at 880 nm band. (EBC370) ought to theoretically be Season Minimum Maximum Average Standard Deviation greater than (EBC880), as brown carbon aerosol is extra absorbing at shorter. Determined by 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 specific extent [25]. The distinction involving (EBC370)/(EBC880) for the heating season and nonheating season in Xuzhou through the research period is shown in Table 2. The average 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 in the course of the heating season is significantly higher than that in the course of the nonheating season, and the maximum value and normal deviation on the heating season are significantly greater than those for the nonheating season, indicating that brown carbon aerosols constitute a bigger proportion throughout the heating season but are unstable.Table two. Statistics of (EBC370)/(EBC880)Atmosphere 2021, 12,Atmosphere 2021, 12, x FOR PEER REVIEW10 of11 of3.five. Analysis of Contribution of Prospective Sources of Xuzhou. Xuzhousource of potential air pollutants, the mixed single-particle northwest To recognize the belongs to the monsoon climate zone and experiences Lagrangian winds and trajectory winds within the spring and winter and southeast winds and southwest Resolvin E1 site integrated northeast (HYSPLIT) model developed by the Air Resources Laboratory (ARL) winds in theanalyze the hourly average EBC concentrationsof the monsoon inng/m3 right after was employed to summer season and autumn. Owing to the influence above three.00 103 the air on EBC transportation, the north w.