Bayer to Stop Making Chemical That Caused 1984 Bhopal Disaster

In a coda to the 1984 Bhopal tragedy, pesticide manufacturer Bayer CropScience has announced it will cease production of methyl isocyante, or MIC, the deadly chemical that caused the deaths of thousands in India.

The company cited “strategic and economic considerations” for its decision to close some operations in Institute, W. Va., where it produces the carbamate family of pesticides, which include MIC as a key ingredient. Bayer is the last major producer of the compound in the U.S.

Environmental activists claimed credit for pressuring Bayer to stop using one of the planet’s most lethal chemicals. “The handwriting was on the wall,” Rick Hind, legislative director for Greenpeace, told The Center for Public Integrity. “They’re the last man standing on a process that’s infamous and connected to the world’s deadliest industrial accident.”

Much more recently, in 2008, an explosion at the plant in Institute killed two people. While it did not involve MIC, flying metal from the blast came dangerously close to breaching a MIC storage tank and a group of activists called on Bayer to stop producing the chemical. “To eliminate risks of a Bhopal-type event happening in Institute, we … are demanding that Bayer become an MIC and phosgene-free facility,” they said in a letter to Bayer. Phosgene is another toxic chemical.

Bayer said in a press release that it has, for the most part, replaced the carbamate family with newer products. At a news conference, Bayer executives also referred to a more than 10-year-old company pledge to move away from pesticides considered the most hazardous by the World Health Organization, the Charleston Gazette reports.

The Bhopal disaster just over 26 years ago was caused by a chemical leak at a Union Carbide plant in Bhopal, India. Union Carbide was acquired by Dow Chemical in 2001.

A final report on the 2008 incident at Bayer’s Institute plant is expected within a few days from the U.S. Chemical Safety Board. Union Carbide operated the plant until 1986, when it was purchased by Rhone-Poulenc. In 2001, Bayer bought the plant.

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