This looks pretty normal. “After a round of heavy rains on the morning of September 25 in Xintang, Zengcheng, Guangdong province,” so goes the write-up on SHXB.net, “a spotless, snow-like super foam appeared on the river outside some neighborhood.” A day later, it was still there, scintillating under the sun.
The Xintang environmental protection department reported that the cause was a deodorizing surfactant, and that it poses no harm to human health. Might kill a couple of fish though. Won’t turn the river blood red, latex white.
More pictures after the jump.
(H/T Daily Mail)