Which are worst endocrine disruptors?

[vivmount@greener.u-net.com (Vivien Mountford)]

  Dear All,  Is there any clear consensus as to which groups of endocrine
  disruptors are affecting people and  other species the worst?  Is there any
  official or unofficial ranking of this?  This would clearly depend on not
  only the strength of the chemicals but the quantity in the environment.  
  
  I need to know, because an environmental group I belong to in the UK is
  proposing to focus their endocrine disruptor campaign onto  bisphenol a  and
  alkylphenols exclusively.   What about phthalates, dioxin-like chemicals,
  pesticides?  Aren't these more significant?   I am very concerned that we
  are probably missing the main targets if we ignore all of these.   I would
  appreciate your views.
  
  Viv Mountford