CDC: Secondhand smoke from neighbors dangerous:
"According to a new report released by the Centers for Disease Control and Prevention (CDC), even if you're not a smoker, living in a multi-unit residence could put you at risk for cigarette smoke exposure."
This is becoming an increasing source of conflict among people living in condominiums buildings. If there are enough complaints, condo boards and even city councils may ban smoking in multi-family residences. One example: San Rafael, California, where smoking in apartments and condos is banned.