In an attempt to replace freon, a new generation of propellants has come into use. Isobutane, propane and butane don't destroy the earth s ozone shield, but studies of animals find that they are toxic to the heart and central nervous system. Aerosols may also contain solvents including ethanol, isopropyl alcohol and propylene glycol that are volatile organic compounds. VOC s contribute to global warming and can contaminate ground and surface waters.
Aerosol sprays are often no more effective than using liquid products in non-aerosol containers.
Detergents are derived from scarce petroleum, are non biodegradable and usually contain chemical additives such as artificial fragrances and colors. Detergents cause more child poisonings than any other household product. Automatic dish washing powder contains harsh detergents with high concentrations of phosphates. Released into streams and storm drains, phosphates kill fish and other aquatic life. Add additional borax for harder water, or choose a low phosphate detergent and dilute with baking soda.