What Turned the Schuylkill River Green? - NBC 10 Philadelphia
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What Turned the Schuylkill River Green?

What turned the Schuylkill River green Wednesday? It turns out it was just a harmless plant. (Published Thursday, Sept. 22, 2016)

Eagles fans aren’t the only ones bleeding green in Philadelphia. SkyForce10 captured a green blanket covering part of the Schuylkill River Wednesday. The peculiar shade had some wondering what was in the water.

It turns out that duckweed, a plant that grows in slow flowing areas of the river, was the cause. Recent rain in the area caused the plant to break up and flow downstream. The plant was spotted in the Schuylkill River last month as well.

Duckweed is harmless and is actually a source of food for many animals along the Schuylkill. The Philadelphia Water Department said the green color will disappear from the river once temperatures cool down in our area.