You may have heard that in Wetteren in Belgium, a train carrying poisonous chemicals derailed and exploded. People were evacuated who live as close to 250 meters to the explosion. There was an official helpline by the government people could call for information, and I have to give a lot of credit to the public tv station that showed this on the evening news: someone who lived 300 meters away called and the helpline told him that he doesn't need to keep his windows and doors closed and the air is absolutely not poisonous and completely safe, LOL! His expression was priceless. "What kind of bullshit is this! I live 50 meters away from the evacuated houses!"
Yesterday people were allowed to go back but this morning they had to be evacuated again after new measurements taking. People are understandably annoyed at being evacuated again but man, priorities... do you want comfort or do you want to stay healthy? If something like this happened close to me, I'd be off to my folks house in a heartbeat and wouldn't go home until I was sure it was safe, which would probably mean a fair bit later than officially declared. Remembering the bs the Japanese government pulled during the Fukushima disaster.