Water from Roaring Springs is treated with chlorine to disinfect and to control microbes within it, officials noted.

A chlorine gas leak in the North Rim forced Grand Canyon National Park officials to close three trail heads until further notice.

An emergency situation at the Grand Canyon forced the closure of inner corridor trails, including the Bright Angel Trail, park officials said.

All inner canyon trails at the Grand Canyon are closed because of a chlorine gas leak at Roaring Springs, the national park said on Wednesday evening. The chlorine gas leak was reported at Roaring ...

Chlorine gas created by the accidental mixing of chemicals at the Bessborough Hotel at Spadina Crescent and 21st Street in ...

A third-party vendor "offloaded a chemical into the wrong tank," which could have combined with another chemical creating ...

The Grand Canyon covers 1,904 square miles in Arizona, and is one of the most famous National Parks in the U.S. Nearly 5 million visitors flock to the canyon ea ...

Two people have been taken to a Saskatoon hospital after an accidental release of chlorine gas at a hotel in downtown ...

Trails in Grand Canyon National Park were closed due to a chlorine gas leak. Chlorine is used as a disinfectant in the Roaring Springs area of the park. The trails have since reopened NORTH RIM ...