Organic biocides
Fate of biocides in the environment:
–Chemical stability (rate it degrades to other compounds)
–Mobility (mechanism and rate of transport)
Rapid degradation mobility less of an issue
Different degradation mechanisms may operate as the pesticide moves to a new environment
Degradation products may have biocidal properties:
–Usually reduced toxicity, but sometimes toxicity is enhanced
Polychlorinated Hydrocarbons
All the Dirty Dozen are polychlorinated hydrocarbons
They are stable and do not readily degrade to less toxic forms
–Persist in the environment for a long time and can bioaccumulate through the food chains
Insoluble in water, soluble in fats
Polychlorinated hydrocarbons of particular concern are:
