زیرا، داریم: $\begin{align}  & (ppm)\,ghelzat\,namak=\frac{NaCl\,jerm}{jerm\,ab\,darya}\times {{10}^{6}} \\  & =\frac{0/2gNaCl}{100g{{H}_{2}}O}\times {{10}^{6}}=2000ppm \\ \end{align}$