To preface this, I'm looking specifically for California Law. I'm aware that medical marijuana is legal in the state of California, and am wondering if any other laws apply, similarly to tobacco laws.
One of my neighbors, although I don't know which one, smokes marijuana on a regular basis. Almost every night, I can smell it. I've identified that the smell appears to be coming down through my kitchen vent, as the smell always originates from the kitchen area, and is strongest near the vent. There does not appear to be any smell in the hallway, so my guess is that a downstairs neighbor is smoking and attempting to ventilate their apartment via their kitchen vent.
I've contacted my landlord already, who has informed me that there is not much he can do aside from sending out a notice to everyone "reminding everyone that smoking of any kind is a violation of the lease agreement," and that he cannot identify who is smoking, or where the smoke is coming from. He told me that he especially cannot do anything because medical marijuana is legal.
So, my question is: is there anything I can do short of moving out (I don't really want to move out)? I've read a little on tobacco laws, and, although tobacco is legal, allowing tobacco smoke to travel between apartment units may breach the habitability requirements. Is there any such precedent for marijuana cases?