This is most likely caused by fluorescent lighting flicker, not reflections from nearby green objects.

Fluorescent lights don’t output a constant color or brightness. They cycle with the AC power frequency, so during a fast exposure your camera may capture only part of that cycle. That can produce a green band or uneven tint across the frame, and the position can appear to move between shots or burst frames.

That’s why two photos taken a second apart with the same settings can look different: the shutter is catching different moments of the light’s flicker cycle.

This is most noticeable with higher shutter speeds indoors under fluorescent lights. Slower shutter speeds are usually less prone to it because they average over more of the lighting cycle.