Guidance for Fishermen Encountering Munitions at Sea

At a glance

Before the 1970s, the U.S. Army’s Operation CHASE (acronym for “Cut Holes and Sink Em”) called for the disposal of surplus, out-of-date, unusable chemical weapons at sea. The chemical agents in these weapons are now an emerging public health problem, especially for fishing workers and seafood production facilities. Chemical weapons can be tangled in fishing nets or accidentally disturbed during commercial fishing, clamming, and dredging.

Three weapons in a box that were recovered from the ocean

Chemical Weapons at Sea Put Fisherman in Danger

An incident involving chemical weapons on a fishing vessel can result in serious health threats. These include injury to vessel crew members, contamination of the boat, and contamination of the seafood.

In the last 20 years there have been five reported incidents where fishermen had contact with chemical munitions while at sea. Vessel crew members did not know what to do, resulting in unintentional injuries and contamination.

An image of bulk chemical containers being dumped in the sea from a ship.
Sea disposal of bulk chemical agent.

Intervention

CDC and the interagency workgroup developed a response kit for commercial fishermen encountering chemical munitions. The kit includes the following:

CDC shared the response kit with industry and with government partners, including the National Oceanic and Atmospheric Administration, U.S. Coast Guard, U.S. Food and Drug Administration, and state public and environmental health agencies that may provide help during the incidents.

An image of a hand and forearm with burns and blisters from mustard exposure.
Burns and blisters from sulfur mustard (mustard gas) exposure.

Impact

Since the development of the response kit, the resource card has been the Chemical Demilitarization Program’s most popular webpage. As of June 2023, it has been viewed over 19,500 times, accounting for 28.2% of the program’s website visits. The response kit and its resources have been downloaded 385 times. The kit ensures fishermen and treatment facilities know how to

  • recognize munitions
  • properly handle munitions
  • safely put on and remove personal protective equipment
  • decontaminate surfaces
  • recognize signs and symptoms of exposure

Resources