Algae treatment falls short

Decatur Daily Democrat:

COLUMBUS, Ohio (AP) — A test treatment has not been completely effective against a cause of the toxic algae that led to warnings and a decline in tourism at a major Ohio lake this summer.
Aluminum sulfate, or alum, spread over test areas appeared to have no impact on phosphorous at one site in Grand Lake St. Marys, The Columbus Dispatch reported Friday. The phosphorous levels in the water were reduced by 50 to 60 percent at two other sites.....