Articles with titles like Ukraine Fire Near Chernobyl Disaster Site Brought Under Control create an incorrect impression. They probably mean to reassure by suggesting that the sarcophagus that contains the ruined reactor four is not under threat.
But as I’ve been tweeting this afternoon, it’s not that simple. The forests around the Chernobyl nuclear facility have been irradiated since the event itself in April of 1986, and the forests are still toxic. A study has shown that radioactive cesium 137, for example, with a half life of 30 years, “isn’t disappearing from the environment as quickly as predicted.”
Ukrainian authorities established the exclusion zone in the first place to keep people away from dangerous materials like cesium 137, strontium 90 and others. Visitors to the exclusion zone are made to sign an agreement not to wander into the woods and disturb the ground. We were instructed not even to rest a camera bag on the ground while changing batteries.
Fire needn’t reach the reactor proper to cause the dispersal of cancer causing material. It can be lifted from the forest floor into the air in clouds of smoke from the fire. People in Kyiv, Minsk and rural areas of Ukraine and Belarus must be careful not to breathe smoke from this fire.