Sources

Contaminant

Source


Asbestos
  • some insulation installed between 1930 and 1950
  • some old wood stove door gaskets
  • some vinyl floor tiles
  • drywall joint compound and textured paint obtained before 1977
  • cement-asbestos millboard, exterior wall shingles
  • some ceiling finishing plaster installed between 1945 and 1973
  • some fire retardant on structural steel

Combustion by-products
  • power generation (gas, coal, oil)
  • wood and coal stoves
  • internal combustion engines
  • fireplaces
  • candles

Tobacco Smoke
  • cigarettes
  • cigars
  • pipes

Formaldehyde
  • some particle board, plywood, pressed-board, panelling, carpeting, carpet backing
  • some furniture and dyes
  • urea-formaldehyde insulation foam
  • some household cleaners, deodorizers
  • combustion
  • some glues and resins
  • cosmetics
  • permanent-press clothing

Biologic organisms
  • fungi, including mould and mildew
  • animals
  • humans

Radon
  • gas emitted by soil, rocks, water
  • natural gas
  • granite building materials

Volatile organic compounds
  • solvents and cleaning compounds
  • paint
  • glue
  • spray propellants
  • fabric softeners and deodorizers and perfumes
  • combustion
  • dry cleaning fluid
  • some fabrics
  • petrol
  • water outgassing
  • building materials
  • wax and polishing compounds
  • pens and markers
  • binders and plasticizers
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