Does anyone know if this is dangerous???? Need answers!!!?

I have been smelling karosene in my apartment building for months. I called the landlord on the 4th and they never returned our call. Finally my husband went to their place of business yesterday. When we came home they said they found a leak. (In front of the pilot light , but it was no big deal.) We have a 3 year old and a 3 month old. They both sleep in our room which is well ventalated. I do not feel that the landlord was being honest with us. I am also concerned about carbon monoxide... Does anyone know if they have to provide a detector??? thanks.