# An Overview of Nanofiltration and Nanoadsorption Technologies to Emerging Pollutants Treatment
## 2 Emerging Pollutants
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multirow{2}{*}{**Compound**} & \multirow{2}{*}{**CAS Number**} & \multirow{2}{*}{**Emerging**} & \multirow{2}{*}{**Occurrence**} & \multicolumn{2}{c}{**Maximum**} & \multirow{2}{*}{**Reference**} & \multicolumn{2}{c}{**Recommended Limit**} & \multicolumn{1}{c}{**Recommended Limit**} & \multicolumn{1}{c}{**WHO**} \\  & & & & (ng L\({}^{-1}\)) & & & **US EPA** & **Europe Union** & **[**32**]** \\ \hline \multirow{2}{*}{Pharmaceuticals} & \multirow{2}{*}{2207-15-4} & \multirow{2}{*}{Ketropofen} & Surface water & 245 & [34] & & & & \\  & & & 107 & [5] & - & - & - \\ \cline{3-8}  & & & Groundwater & 23.4 & [8] & & & \\  & & & 215 & [41] & & & \\ \hline \multirow{2}{*}{Pharmaceuticals} & \multirow{2}{*}{15007-86-5} & \multirow{2}{*}{Diclofenac} & Surface water & 41.4 & [8] & & Substances should be & \\  & & & Groundwater & 1.56 & [8] & - & removed from the watch & - \\ \cline{3-8}  & & & Groundwater & 380 & [41] & & list [30] & \\ \hline \multirow{2}{*}{Pharmaceuticals} & \multirow{2}{*}{298-46-4} & \multirow{2}{*}{Carbanazepine} & Surface water & 16.1 & [8] & & & \\ \cline{3-8}  & & & Groundwater & 27.2 & [8] & - & - & - \\ \cline{3-8}  & & & Groundwater & 136 & [41] & & & \\ \hline \multirow{2}{*}{Pharmaceuticals} & \multirow{2}{*}{439-14-5} & \multirow{2}{*}{Diazepam} & Groundwater & 35.1 & [41] & - & - & - \\ \cline{3-8}  & & & Surface water & 372.1 & [34] & & & \\ \cline{3-8}  & & & Surface water & 22.85 & [8] & - & - & - \\ \cline{3-8}  & & & Groundwater & 49.4 & [8] & & & \\ \hline \multirow{3}{*}{Pharmaceuticals} & \multirow{3}{*}{3380-34-5} & \multirow{3}{*}{Tricloasan} & \multirow{3}{*}{Surface water} & 139 & [34] & & & \\  & & & Surface water & 8.6 & [35] & & \\  & & & 2-299 & [33] & Only eligible for & & \\ \cline{3-8}  & & & Drinking waters & 2-37 & [33] & specified use [42] & Use is not approved [43] & - \\ \cline{3-8}  & & & Groundwater & 22-284 & [33] & & & \\ \hline \multirow{2}{*}{Hormones} & \multirow{2}{*}{50-28-2} & \multirow{2}{*}{178-estradiol} & \multirow{2}{*}{Drinking waters} & 18-35 & [33] & \multirow{2}{*}{Listed as priority} & \multirow{2}{*}{0.4 mg L\({}^{-1}\)[36]} & \multirow{2}{*}{-} \\  & & & Surface water & 2-6806 & [33] & & & \\ \cline{3-8}  & & & Surface water & 4-4390 & [33] & & \\ \cline{3-8}  & & & Drinking waters & 32 & [33] & & \\ \cline{3-8}  & & & Drinking waters & 0.4–125 & [33] & & \\ \hline \multirow{2}{*}{Hormones} & \multirow{2}{*}{50-27-1} & \multirow{2}{*}{Estriol} & \multirow{2}{*}{11.9} & [35] & \multirow{2}{*}{Listed as priority} & \multirow{2}{*}{-} \\  & & & 1-1398 & [33] & & & \\ \hline \hline \end{tabular}
\end{table} 
Table 1: _Cont._ \begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline
**Compound** & **CAS Number** & \begin{tabular}{c} **Emerging** \\ **Pollutants** \\ \end{tabular} & **Occurence** & \begin{tabular}{c} **Maximum** \\ **Concentration** \\ **(ng L\({}^{-1}\))** \\ \end{tabular} & **Reference** & \begin{tabular}{c} **Recommended Limit** \\ **US EFA** \\ \end{tabular} & \begin{tabular}{c} **Recommended Limit** \\ **Europe Union** \\ \end{tabular} & \begin{tabular}{c} **WHO** \\ **[32]** \\ \end{tabular} \\ \hline \multirow{3}{*}{Hormones} & \multirow{3}{*}{53-16-7} & \multirow{3}{*}{53-16-7} & \multirow{3}{*}{Extone} & \begin{tabular}{c} Drinking waters \\ Surface water \\ \end{tabular} & 0.6-20 & [33] & \begin{tabular}{c} Listed as priority \\ pollutant or hazardous \\ substance [40] \\ \end{tabular} & 0.4 ng L\({}^{-1}\)[36] & - \\ \cline{3-8}  & & & \begin{tabular}{c} Drinking waters \\ Surface water \\ \end{tabular} & 2-5 & [33] & & & & \\ \cline{3-8}  & & & \
\begin{tabular}{c} Surface water \\ \end{tabular} & 1-329 & [33] & - & - & - \\ \cline{3-8}  & & &
\begin{tabular}{c} Groundwater \\ \end{tabular} & 34-36 & [33] & & & & \\ \hline \hline \end{tabular}
\end{table} 
Table 1. Cont.