Talk:Biocide

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The use of the phrase "pesticides and herbicides" is illogical, since herbicides are a subset of pesticides. It's like saying 'fruit and oranges." Pollinator 14:28, 4 Oct 2003 (UTC)

I think "pesticide" here means animal kingdom pesticide. "Herbicide" means plant-killing substance or selective plant-killing substance. H Padleckas 16:19, 28 Feb 2005 (UTC)

According to the USEPA, "pesticide" is used as a blanket word for algaecides, fungicides, insecticides, etc. dil 14:35, 14 April 2006 (UTC)

Trichlor has no sodium in it. Trichlor is simply "trichloro-s-triazinetrione". —Preceding unsigned comment added by 69.141.200.175 (talk • contribs) 18:43, 18 June 2006

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Definition of Biocide

"a chemical substance or microorganism intended to destroy, deter, render harmless, or exert a controlling effect on any harmful organism. The US Environmental Protection Agency (EPA) uses a slightly different definition for biocides as "a diverse group of poisonous substances including preservatives, insecticides, disinfectants, and pesticides used for the control of organisms that are harmful to human or animal health or that cause damage to natural or manufactured products" "

Biocides have secondary effects on a multitude of biological organisms, unicellular and multicellular. The idea that "it focuses only on what harms human health" is over-simplified and has thus become untrue: we do not posses the technical, medical and biological capabilities of creating enough specialized, targeted biocides in order to define the whole category as only harming other "(clearly) harmful organisms". We don't know yet how many collateral victims there are to our biocides, little funds to conduct extensive studies over human generations to notice changes on the genetic level.

My problem is that this definition of biocides is mathematically untrue. The percentage of biological organisms that are killed by biocides that are not characterized as harmful is extrapolated from the total number of micro-organisms studied in a sample affected by a given biocide, where the sample has been collected from a previously undisturbed (uncontaminated) natural habitat (or any other habitat under question). This percentage tends to be large. We are currently designing most commercial biocides as potent eliminators of biological processes from a broad category of processes, very little target one specific harmful organism and that only. Those that do are called (hopefully)nonmutagenic viruses or bacteria and they are not employed commercially.

Change my statement or correct it if you can, but let me know of your expertise on the matter.