Thailand's Pollution Control Department has issued urgent warnings about oil stations and chemical storage facilities at risk of leakage during the current Bangkok floods. The department is intensifying surveillance of fuel pumps, oil storage tanks, and hazardous chemical storage sites in flood-affected areas, referencing lessons from 2011's major flooding disaster. Businesses are urged to inspect facilities closely and report any visible oil slicks, chemical odors, or abnormal water discoloration to the emergency hotline 1650 immediately.