Peter wrote: >nor do they appear to build up in lakes like chlorinated hydrocarbons and organophosphates This is not what we see in The Netherlands! http://rivm.nl/bibliotheek/rapporten/601712008.html See 'Display English'. From the abstract: 'Considering the observed concentrations in surface water there is no risk for humans'. For how long yet? See also: http://www.rivm.nl/bibliotheek/rapporten/601716018.pdf Kind regards, Ghislain De Roeck, Belgium. *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html Guidelines for posting to BEE-L can be found at: http://honeybeeworld.com/bee-l/guidelines.htm