Pesticides: Having a professional treat for pests is not a guaranty of safe use of pesticide. Some professionals use too much chemical to avoid return of the pests. In other instances, the problem is consumers not following directions or storing the leftover chemicals in the home. These products are often poisons for people as well as pests. Another common problem is a neighbor of a chemically sensitive individual’s use of chemicals in yards and homes.
New homes: There are hundreds of products off gassing chemicals in new construction. We have found some very unusual sources of toxic gasses in new homes. In one case, the problem in a $750,000 home was defective flexible ductwork. The homeowners could not live in the home until the ductwork was removed and replaced.
Home improvement and building supplies: You have probably heard about the Lumber Liquidators formaldehyde in flooring problem. Carpet, counters, sheathing, and almost every product in the home can have plastic which is made by chemistry that depends on heat, catalysts, timing, mixing and a host of factors that result in the imperfect creation of very complex chemicals. Some of those chemicals can be toxic to people and will evaporate from the materials. Cleaning products: The use of very concentrated cleaning supplies can create toxic residue and fumes. We have found numerous instances of offices becoming unhealthy as a result of these industrial strength products.
Drugs: We have found homes and multi-family units that were toxic with the residue of drug manufacture. As an example, the manufacture of Meth uses Drano, lye and sulfuric acid, and other toxic chemicals
Soil Gases: Many homes and other buildings are built on reclaimed industrial sites and farms. The chemicals and pesticides that may have entered the soil can be very safe in an open field. Buildings constructed over this soil can suck those chemicals into the air occupants breathe.
Stored Products: Just about every container will leak fumes over time. One nasty smelling home we found was venting gases from the stored chemicals that were used to build model rockets. Another home had the chemicals from a photo lab. Another family thought it was a great idea to store chemicals used to dry clean clothing.
Neighboring Environmental Problems: in one case, a neighbor had a side business that used toxic chemicals. He would pour those chemicals down their drains. The chemicals would evaporate into the neighboring home from the sewer making those people deathly ill. A nearby fracking operation was a problem for one homeowner who was using a HRV system to pull outside air into their home.
Misuse of Everyday Products: The safety of products is judged on “normal” use. As an example, many of the plug-in products to make your home smell good anticipate a minimal use in a home. Put one of those in every room and you can have a toxic level of exposure.