Wikimedi'Òc

Hazard N.svg - Matthias M.

GHS-pictogram-pollu.svg - Perhelion

ECB Hazard Symbol N.svg - LCARS~commonswiki

ISO 7010 W072.svg - Andrew Pertsev

ISO 7010 W072 CC0.svg - Clemenspool

HSA, Safety signs for the classroom - Sign 19 - Environmental hazard.svg - Bigguy637

Big guy637's Safety sign W040a.svg - Bigguy637

Environmentally hazardous substance–IMG 6878.jpg - Kızıl