If 1 teaspoon of salt pollutes 5 gallons of water to toxic levels, does this mean that even iodized salt used for cooking results in environmental damage?

Question

I try to be as environmentally friendly as possible in daily life. Today I learned about the effects of salt on freshwater and how wastewater treatment plants are not capable of removing salt and chloride from water which results in it being dumped into rivers, lakes, etc and affecting aquatic life. Is this specific types of salt or is this any type of salt including iodized salt used for cooking?

In: 0

Answer 1

Salt can make water undrinkable for animals, and plants will die absorbing it.

But: rain happens, and washes salt away, river flow to the sea, salt goes back to where it came from.

For perspective, we use a ton of salt on the mountains to prevent road freezing. Trucks and trucks spraying salt for months. Not even the grass on the margin of the road dies from it.