There is also evidence that it may be a contributing factor in leukaemia. Trichloroethylene is a commercial product used in printing inks, paints, lacquers, varnishes and adhesives. The American National Cancer Institute considers it a potent liver carcinogen. Formaldehyde is a chemical found in virtually all indoor environments. It's used in grocery bags, facial tissues, paper towels and particle board.
Many common household cleaning agents contain formaldehyde, as do heating fuels such as natural gas.
This chemical can irritate the mucous membranes of the eyes, nose and throat and can cause headaches and irritation to the upper respiratory tract. The plants used in this study were common varieties. The testing was done according to strict scientific principles, taking into account all environmental factors right down to the micro-organisms in the soil. The plants were sealed in plexiglass containers for a twenty-four hour period while, under separate tests, each of the three chemicals was injected into the sealed chamber. The results were very interesting.