Hello Joyce, Thanks for the note. My question was to the toxicity of phosphors. I am aware of the chemistry cited and I am guessing that "soft, slightly acidic water" is not likely to be found in a land fill or at least once a rain drop hits the dirt... ;-) Unfortunately, we continue to be left with the simple fact that there is no evidence from the field to support the assertions from those laboratories seeking to prove their broad based theories in beakers. Just too many other materials in nature that get in the way and stop lead from leaching it appears. Guess they may need to get the land management folks to use very big beakers as landfills exclusively for mashed up electronics so they can prove themselves right... ;-) Very best, Joe. --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------