With the information gathered from the comments, considering you are the tenant of an apartment, I would suggest not repairing things yourself under a rental agreement. In jurisdictions such as the US and Canada, doing work to fix things, even if it is an improvement, can be considered damage, and you can be held liable for that.
If you have informed management and they will not fix it, and as I understand you have the opportunity to move out, I would just leave the damage, and move out.
In the meantime, landlord-tenant board would be a better bet than the health department if you really want to try and push the landlord to fix this. I would not fix this myself, thats for sure.