You can quickly identify Radiation Zones in two different ways: by opening your Tac Map and searching for the yellow circle with the Nuclear symbol, or by gray smog that encircles the ground.

UI and QoL overlay for Path of Exile 1 and 2. Emphasizes ease of use, minimalist design, and seamless integration. Formerly Lailloken UI. - Act‐Tracker · Lailloken/Exile-UI Wiki ...