Toxic Legacy: Mustard Gas in the Sea around Us

In 1946, Tom Brock spent part of his summer dumping mustard gas bombs off a barge into the Atlantic Ocean. Brock was a civilian employed by the United States Army Transport Service in Charleston, South Carolina. His job was to dispose of surplus bombs and drums filled with mustard gas. Sulphur mustard, commonly called “mustard gas,” can take several forms: a liquid, a solid, or a vapour. Mustard gas, named for its mustard-like color and smell, is a vesicant that is toxic to humans and causes blistering and burns, affecting the lungs, eyes, and skin. Brock recalled that he and the soldiers enjoyed watching the occasional bomb explode as it sunk into the water. “We thought it was fun,” explained Brock. “I was 18 or 19 years old. We weren’t scared. We didn’t fear any explosive. We thought we were immortal.” Later that summer he was required to guard a barge of bombs that were leaking mustard gas, which looked to him like hot molasses. Due to the known health risks, Brock was told to wear a protective suit and gas mask. However, it was a hot day so he loosened the straps around his legs. As a result, enormous blisters developed, swelling out like a balloon from his toes to his knees. His summer job was no longer fun as he experienced firsthand the health hazards of exposure to mustard gas.