You explained what happens when you drown in freshwater and you explained what happens when you drown in saltwater, but what happens when you drown in an estuary?
Welcome to the boards.
It helps if you add a link to the column, so that others can follow along.
I assume Cecil is actually talking about drownings where a rescue is attempted and the victim removed from the water, as opposed to those who, you know, go under water and stay there until they bloat/wash up on shore. 'Cause I’m fairly sure filling the lungs with water like a water balloon, then leaving the water there for about 30 minutes will have the same effect whether the water is fresh or salty. YMMV.
Death by osmosis - nice! So you’re saying the best treatment for a saltwater drowning is to drown them in fresh water so the salt level can be flushed?