Thirdhand smoke found in non-smoking movie theatre

While remarkable progress has been made in several countries to prevent people inhaling toxic secondhand fumes from cigarettes, evidence shows the harmful chemicals linger in a room after the smokers have left, and many places have banned smoking altogether.
Now, significant chemical residues of this thirdhand smoke have been detected in a German movie theatre that has had a rigorous smoking ban for the past 15 years, exposing people to the equivalent of one to 10 cigarettes of secondhand smoke.
Published by Cosmos.