No Discharge Symbol - Environmental Protection Warning Sign #1194711 (License: Personal Use)

The image depicts a standardized environmental warning symbol: a red circular border with a diagonal slash overlays a black pipe discharging blue water into a yellow background, signifying prohibited wastewater release. The bold color contrast (red, yellow, blue) ensures high visibility and immediate recognition in regulatory or industrial contexts. It communicates strict non-compliance with clean water standards.

Commonly used on signage near storm drains, industrial outflows, or environmental education materials to prevent illegal dumping; matches user intent for understanding regulatory symbols or designing compliance visuals.