For years suffer from tokens in apartment building...

For years suffer from tokens in apartment building. I'm crazy says the housing association. If there is serious contamination, a major clean-up will be arranged in no time, otherwise the cause is not checked. Complete reluctance to do anything, even though they themselves know how it works. Scandalous! Health affected after 10 years odor nuisance from various sources, diesel, chemical mess, sewage tank etc. etc.