And mining of gold is bad, and mining of coal, mining of beryllium, etc. In fact, mining is in general a proecess that results in water and ground soil contamination, regardless of the material being mined. Concentrating these minerals also results in toxic effects.
So? It's one thing to be responsible. It's entirely another to wrap a lie in environmentally friendly paper for the purposes of controlling an industry to one's advantage as has been done with this protocol. >-----Original Message----- >From: [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] On Behalf Of Brad Velander >Sent: Wednesday, December 08, 2004 6:51 PM >To: Open Topic Forum >Subject: RE: [OT] Lead free re design > >Ivan, others, > I am not trying to deliberately extend this discussion >but so far I have not seen any mention of the front end >effects. The mining of Lead and it's associated environmental >issues. Sure it is found naturally in the ground and it has >been there for a long time. So is uranium, radon and a host of >other much more nasty materials but they usually do not raise >a significant health hazard left in their natural state. Start >mining it and now it is in the air, the water, falling off the >sides or backs of dump trucks and conveyors, washing into >streams or water reservoirs. Then you smelt it, more lead >enters the environment. Not to mention all of the energy input >that goes into this process. > > Other metal alloys also have similar energy inputs so >that is not so much a green or greener issue. > > The one issue that I question, I don't have a thorough >knowledge of the details, who's products have lead content >that account for greater than 0.1% of the product weight? >Seems to me that a lot of PCB assemblies are just going to >skirt the whole issue based solely on this weight exclusion. >Any comments? > > >Sincerely, >Brad Velander >Senior PCB Designer >Northern Airborne Technology >1925 Kirschner Rd., >Kelowna, BC, V1Y 4N7. >tel (250) 763-2329 ext. 225 >fax (250) 762-3374 > > >-----Original Message----- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] >Behalf Of Bagotronix Tech Support >Sent: Wednesday, December 08, 2004 11:56 AM >To: OT Forum (Techserv); "Indrek Rebane" >Subject: [OT] Re: [PEDA] Lead free re design > > >Hi, Indrek: > >> > I enjoy nature and green spaces as much as anyone, but some of the >> > greenies' ideas of conservation are scientifically unsound. This >> > lead-free solder is one of them. >> >> And your reasoning is? Assume that CRT's and Pb-batteries >are properly >> recycled. > >My reasoning is that lead-free solder joints are not as >reliable over the long term as lead-full solder joints. We >won't know the real facts on this until lead-free has been in >actual field use for several more years. Early indications do >not look favorable, from what I have seen and read. What good >are lead-free products if you have to produce 3 of them to get >the same operational lifetime as 1 lead-full product? Then >there are the costs of service calls, etc. Yes, my CRT's and >batteries are recycled, their cost-benefit ratio for recycling >is good since they contain large amounts of lead. > > >____________________________________________________________ >You are subscribed to the OT discussion forum > >To Post messages: >mailto:[EMAIL PROTECTED] > >Unsubscribe and Other Options: >http://techservinc.com/mailman/listinfo/ot_techservinc.com > >Browse or Search Old Archives (2001-2004): >http://www.mail-archive.com/[email protected] > >Browse or Search Current Archives (2004-Current): >http://www.mail-archive.com/[email protected] > ____________________________________________________________ You are subscribed to the OT discussion forum To Post messages: mailto:[EMAIL PROTECTED] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/ot_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected]
