## 3 Results
### Black Carbon and White-Sky Albedo  
According to the results presented in Table 6, the average BC concentrations with standard deviation were 2.35 \(\pm\) 0.94, 3.30 \(\pm\) 1.35, and 2.75 \(\pm\) 1.29 (mg/m\({}^{3}\)) for Karakoram, Himalaya, and Hindukush, respectively. Moreover, as BC data was observed monthly from June 2017 to May 2018, the statistical (annual) range of BC values were 3.19, 4.52, and 4.11 which is greater than their respective averages. However, variance remained quite low for the BC concentrations of Karakoram, Himalaya, and Hindukush. \begin{table}
\begin{tabular}{c c c c c c c c c c c c} \hline \hline  & \multicolumn{3}{c}{**Hindukush**} & \multicolumn{3}{c}{**Karakoram**} & \multicolumn{3}{c}{**Himalaya**} \\  & \multicolumn{3}{c}{**(Mergaram)**} & & \multicolumn{3}{c}{**(Passu)**} & & \multicolumn{3}{c}{**(Raikot)**} & \\ \cline{2-11}
**Month** & \multirow{2}{*}{**BC \(\upmu\)/m\({}^{3}\)**} & \multirow{2}{*}{**WSA**} & **Cloud** & \multirow{2}{*}{**BC \(\upmu\)/m\({}^{3}\)**} & **WSA** * & **Cloud** & \multirow{2}{*}{**BC \(\upmu\)/m\({}^{3}\)**} & **BC \(\upmu\)/m\({}^{3}\)** & **WSA** & **Cloud** \\  & & & **(\%)** & & & & **(\%)** & & **(\%)** & & **(\%)** \\ \hline Jun-17 & 3.32 & 0.048 & 2 & 2.35 & 0.086 & 11 & 0.054 & 0.044 & 11 \\ Jul-17 & 3.18 & 0.050 & 4 & 1.84 & 0.099 & 18 & 0.067 & 0.050 & 18 \\ Aug-17 & 2.32 & 0.054 & 5 & 1.55 & 0.085 & 32 & 0.067 & 0.051 & 4 \\ Sep-17 & 1.85 & 0.029 & 5 & 0.99 & 0.038 & 61 & 0.037 & 0.030 & 2 \\ Oct-17 & 1.29 & 0.023 & 5 & 1.10 & 0.032 & 6 & 0.028 & 0.022 & 0 \\ Nov-17 & 1.04 & 0.025 & 50 & 2.71 & 0.028 & 29 & 0.029 & 0.023 & 30 \\ Dec-17 & 1.77 & 0.024 & 43 & 2.14 & 0.023 & 11 & 0.027 & 0.052 & 49 \\ Jan-18 & 2.31 & 0.069 & 47 & 2.18 & 0.039 & 10 & 0.039 & 0.064 & 17 \\ Feb-18 & 2.34 & 0.054 & 47 & 2.53 & 0.052 & 4 & 0.066 & 0.061 & 61 \\ Mar-18 & 3.76 & 0.081 & 32 & 3.14 & 0.050 & 6 & 0.055 & 0.071 & 59 \\ Apr-18 & 4.71 & 0.058 & 3 & 3.53 & 0.050 & 2 & 0.035 & 0.054 & 2 \\ May-18 & 5.15 & 0.032 & 17 & 4.18 & 0.059 & 43 & 0.037 & 0.034 & 29 \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Concentration of black carbon, WSA, and cloud cover at the study site. \begin{table}
\begin{tabular}{c c c c c c c c c c c c c c c} \hline \hline
**Follutants** & **Site** & **Jun-17** & **Aug-17** & **Sep-17** & **Oct-17** & **Nov-17** & **Dec-17** & **Jan-18** & **Feb-18** & **Mar-18** & **Ap-18** & **May-18** & **Mean** & **SD** \\ \hline PM\({}_{2.5}\) & Hindukush & 15.57 & 17.88 & 13.84 & 13.84 & 12.69 & 15.57 & 20.18 & 19.03 & 12.11 & 11.53 & 12.69 & 12.11 & 14.75 & 2.91 \\ (mg/m\({}^{3}\)) & Karakorum & 15.26 & 15.20 & 15.55 & 12.87 & 11.80 & 15.57 & 11.87 & 22.84 & 13.32 & 9.80 & 11.55 & 15.74 & 14.28 & 3.34 \\ (mg/m\({}^{3}\)) & Himalaya & 19.71 & 22.63 & 17.52 & 17.52 & 17.52 & 16.06 & 19.71 & 25.55 & 24.09 & 15.33 & 14.60 & 16.06 & 15.33 & 18.68 & 3.69 \\ PM\({}_{10}\) & Hindukush & 23.64 & 28.84 & 25.95 & 24.22 & 23.64 & 28.26 & 28.26 & 24.80 & 24.22 & 25.37 & 24.80 & 25.86 & 2.00 \\ (mg/m\({}^{3}\)) & Karakorum & 23.17 & 24.51 & 25.09 & 22.53 & 21.99 & 28.26 & 24.30 & 33.91 & 27.28 & 20.59 & 23.09 & 32.24 & 25.58 & 4.11 \\ (mg/m\({}^{3}\)) & Himalaya & 29.93 & 36.50 & 32.85 & 30.66 & 29.93 & 35.77 & 35.77 & 31.39 & 30.66 & 32.12 & 31.39 & 32.73 & 2.53 \\ TSP & Hindukush & 67.84 & 80.81 & 68.84 & 65.85 & 62.85 & 75.82 & 83.81 & 81.81 & 63.85 & 61.68 & 65.85 & 63.85 & 70.25 & 8.05 \\ (mg/m\({}^{3}\)) & Karakorum & 66.49 & 68.69 & 70.31 & 61.24 & 58.45 & 75.82 & 62.68 & 69.87 & 70.24 & 52.85 & 59.92 & 83.01 & 68.96 & 12.32 \\ (mg/m\({}^{3}\)) & Himalaya & 85.88 & 102.29 & 87.14 & 83.35 & 79.56 & 95.98 & 106.08 & 103.56 & 80.83 & 78.30 & 83.35 & 80.83 & 88.93 & 10.20 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Concentration of particulate matter at study site.