Factors in Population Growth The key factors in population change are natural increase (the number of births minus the number of deaths), net migration, and the interplay between these elements. These factors are in turn driven by fertility rates, the age structure of the population, mortality rates, life expectancy, and rates of in- and out-migration.
Federal law requires that before signing a lease for housing built before 1978, renters must receive the following from your landlord: An EPA-approved information pamphlet on identifying and controlling lead-based paint hazards, Protect Your Family From Lead In Your Home (PDF).
The Health Department will inspect your house if your childâs lead level is very high (15 ug/dL). If lead is found in your home, the landlord will be given a deadline to make repairs. If the landlord does not meet the deadline, the Health Department may take legal action. The house could be condemned as unsafe.