A.H.N Khan

No, we can't mark it safe since high EC indicates a high amount of dissolved solids that are to be quantified first before marking it safe for Drinking or any other purposes.

Thanks

No, la alta concentración de sales, limita el tratamiento de contaminación por metales pesados

Please explain the ground to suggest unsafe @Mousumi Basu. I need the definite guidelines and causes.

Safety of water depends on intended use. Whereas salinity indicates high levels of salts,it would be interesting to know what salts are therein before you can judge it to be safe.

After detailed water quality analysis, it is possible to say that water is safe for domestic uses.

Safe water (for different usage) is determined upon appropriate water quality guidelines. If the salinity intruitions you mentioned are above acceptable standards, then such water is unsafe.

Thanks.

Dear A.H.N Khan,

Even if the water is free from heavy metals, the high electrical conductivity in the water due to salinity intrusion makes it unsafe for human consumption or domestic uses. Many research findings have reported a range of health complications due to increased exposure saline water in cooking drinking, bathing and other recreational activities among the coastal populations. The health problems include hypertension and miscarriage among pregnant women, acute respiratory infection, skin rashes and diseases and diarrhea.

Water with high EC is therefore not safe for human use. Refer to the refer below for more details;

https://link.springer.com/referenceworkentry/10.1007%2F978-3-319-95681-7_106

Water quality parameters are divided into several categories, such as major ions, heavy and trace metals physical parameters and bacteriological parameters. All these parameters must fall within the acceptable limit of WHO or local standard for drinking water before the word safe and potable could be used for particular water samples. EC or TDS is one of the critical water quality parameters, once it is higher than 500 mg/l, then the portability of such a water sample is doubtful. TDS/EC is largely a function of major ions rather than trace metals.