Your letters: Antibacterial soap can kill fish: Triclosan kills algae, phytoplankton and beneficial bacteria in lakes and rivers and it paralyzes fish.

I at one time was a fisheries biologist for the U.S. Environmental Protection Agency and retired as a fisheries biologist for the Pennsylvania Fish and Boat Commission, Area 7 Southcentral Region. more from BOB ROSCINSKI  15:55

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