Some helpful and informative links::
ASBESTOS
Centers for Disease Control - http://www.cdc.gov/Environmental/
Louisiana Department of Environmental Quality - http://www.deq.louisiana.gov/portal/tabid/2883/Default.aspx
Environmental Protection Agency - http://www.epa.gov/asbestos/
LEAD
Environmental Protection Agency - http://www.epa.gov/lead/
Louisiana Department of Environmental Quality - http://www.deq.louisiana.gov/portal/tabid/2884/Default.aspx
MOLD
Environmental Protection Agency - http://www.epa.gov/mold/
Centers for Disease Control - http://www.cdc.gov/Environmental/
INDOOR AIR QUALITY
Environmental Protection Agency - http://www.epa.gov/iaq/
Centers for Disease Control - http://www.cdc.gov/Environmental/
OSHA - http://www.osha.gov/SLTC/indoorairquality/index.html