A Chemical Weapons Attack in Bhopal, India

The alarm was triggered through the stagnant water in the pipe, getting so chlorinated that even the water in the waste drain on the floor. The department took apart the operating control valve in the left of the picture. It couldn't open properly because a sizable piece of metal had gotten stuck inside the valve. We think the metal was something from the well drilling process and the drillers had figured out it was heavy enough that it would stay down in the well.