A fear of environments that can trigger a panic attack is known as agoraphobia. Agoraphobia is the fear of being in a situation or place where escape is difficult or impossible. This fear is often associated with being in public spaces, crowded spaces, or spaces that are unfamiliar. Agoraphobia can lead to panic attacks in individuals who suffer from it, as they may feel intense fear and anxiety when in a triggering environment. It is important for individuals with agoraphobia to seek treatment, as it can greatly impact their quality of life.