How could Salt, acid, and Chlorine get into AN AQUATIC place?

Question

How could these 3 pollutants get into an aquatic system?

It says to "speculate" how this could happen so it doesn't have to be a perfect answer.

Answer 1

Salt can get washed into to stream and lakes when it is placed on the road to melt ice--this can actually cause some serious pollution. Also, salt water can be added when boats release ballast water after they move into freshwater systems like the Great Lakes, which can create a more saline environment and allow marine species to persist. Lastly, there may be coastal influence.

Acid may be introduce through acid rain, which occurs when NOx and SOx are introduced into the air through smoke stacks and other air polluters and bond with rain (check this). Additionally, systems may become acidic when certain ions are washed into streams, which then bind to other molecules and lower pH (check this).

Not sure about chlorine...maybe industry discharges it directly?

Answer 2

Salt is often made with the rotting of plants which produce acid and if u put in a basic chemical in to neutralize the acid now u have a salt. I try to treat a Baptistery in a church ,it has algae and I neutralize it and not like u I use chlorine to kill the bacteria. u need to test it regularly.
Good luck