National Zoo Set To Reopen Following Chemical Explosion Scare

A section of the National Zoo was closed on March 17 following an explosion caused by an employee who mixed some chemicals. Authorities declared the zoo safe to be reopened to the public on March 18.

The D.C. Fire Department responded to a reported chemical explosion in the American Trail area in the zoo. According to zoo officials, there was a "loud boom," but no fire or smoke. The incident caused no injuries to both animals and visitors inside the recreational area.

"There was an incident related to chlorine on American Trail, near the otters and beavers," said zoo spokeswoman Devin Murphy.

"No humans were hurt. No animals were hurt. We cleared the area and D.C. Fire is on scene and they're investigating," she added.

On Twitter, National Zoo said that the area where the incident happened has been closed as a precaution.

Pamela Baker-Masson, another spokeswoman, said that the incident happened in the mechanical room where the life support system is located. The zoo uses chlorine in the filtration process for the system. Baker-Masson said their contractor, who does routine work in the room, smelled chlorine and immediately left the area. Then they heard the explosion.

The American Trail area consists of animals like beavers, otters, California sea lions, wolves and eagles.

Does Chlorine Cause Explosions?

Chlorine is usually used to clean swimming pools and other water systems. It is a highly efficient disinfectant and is added to public water supplies to kill disease-causing pathogens.

This chemical, however, can cause explosions. There had been cases where the chlorine used to disinfect water in swimming pools caused major injuries and burns on people. The chemical can explode when mixed improperly with other chemicals.