Untreated wastewater is causing algal blooms in Boracay Island, a research of the Department of Environment and Natural Resources (DENR) Region 6 last year showed. The recurring appearance of green algae in Boracay’s otherwise white-sand beach has raised concern on the safety of tourists and the island’s ecological health. The other day, Department of Tourism (DOT) regional director Helen Catalbas said she wasn’t sure if untreated wastewater was behind the recurrence of green algae in Boracay, the country’s top tourist destination.

Sologastoa, G., & Golez, P. (2017, March 9). Wastewater causes Boracay algal blooms - DENR. Panay News, p. 1, 14.