So I have been doing some further research into this area, and I have found that most household cleaning solutions contain heaps of harmful chemicals. These are not only detrimental to the environment when poured down the drain, but are also incredibly dangerous for health.
This website has a list of some of the negative health effects of chemicals found in MOST cleaning agencies.
http://www.purezing.com/living/toxins/living_toxins_harmfulhousehold.html
I've been reading "spotless" by Shannon Lush and Jennifer Fleming which considers this problem, particularly with reference to removal of stains. They mention a lot about "dry cleaner fluid". This used to be pure Carbon Tetrachloride which released lots of green house gasses and had a negative effect on the Ozone layer. Thankfully, this substance is now completely banned in Australia, and now most dry cleaners and members of the public use a chemical called tetrachloroethylene. This however, is a very big waste producer. After each professional use, a large amount of hazardous waste is left over, and has to be dumped.
Now that I have found more of this stuff out, I will be adapting my research to look more into the use of tetrachloroethylene and the other harmful chemicals used by dry cleaners and households to remove stains.
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