If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#31
|
|||
|
|||
"searobin8356" wrote in message . .. You done good. You sought several experts' advice and are exploring your options. You're learning where the risks lie and are taking steps to manage them. You don't have specific physiological symptoms and that is also good. You know you were at around 17 micrograms per deciliter 18 months ago. Actually, it was 16 taken on 12/5/2002. On 12/22 of that year, I tore my right rotator cuff and was not active in SG work until nearly labor day of 2003. So, from 9/03 to 5/04 it increased from16 to 54. Big jump in a short time, eh? (The mean was 20.7 for pros and 11.6 for hobbyists and 11.3 for the hobbyists' families in one small study of stained glass workers.) Please point me to that study? Do you suppose they did any pet serum levels? The dogs are always wandering around in the shop, maybe I gotta deal with them, too. You didn't maintain this elevated level for many years and that's good too. You sound very capable of weighing the advice you get and following through with a course of action that is best suited to your situation. |
Ads |
#32
|
|||
|
|||
"Moonraker" wrote in message "searobin8356" wrote in message Actually, it was 16 taken on 12/5/2002. On 12/22 of that year, I tore my right rotator cuff and was not active in SG work until nearly labor day of 2003. So, from 9/03 to 5/04 it increased from16 to 54. Big jump in a short time, eh? Now that certainly makes one think about testing frequency. I'd bet thoughts of where, when, and what have not been far from your thoughts. Kinda scary it happened so quickly. (The mean was 20.7 for pros and 11.6 for hobbyists and 11.3 for the hobbyists' families in one small study of stained glass workers.) Please point me to that study? Do you suppose they did any pet serum levels? The dogs are always wandering around in the shop, maybe I gotta deal with them, too. Like I said, this was a very small study: http://makeashorterlink.com/?O14623B68 Geez, yep you may need to deal with the dogs, too. Have you noticed any change in behavior in them? Increased aggression/or nervousness? I'll include a few more sites here as sources of info with the caveat that your MD is best suited to putting such into perspective. Reading abstracts of studies (there are often memberships/fees required to read entire reports) doesn't always give one an accurate picture of how the study was done or the conclusions were made. Most everything is available in some form at http://medlineplus.gov/ Environmental health is here http://www.niehs.nih.gov/ This site primarily links patients who want tovolunteer to participate in current research studies and it is run by the NIH http://clinicaltrials.gov/ct/gui/action/GetStudy "lead poisoning" in the search box will get you studies currently under recruitment, check the box "Include trials that are no longer recruiting patients" afterwards to see studies completed or in progress. |
#33
|
|||
|
|||
A friend who took a hazardous materials course said he was taught lead
levels are lowered by taking extra vitamin C and calcium. I.e. that for adults (who are not forming bone and brain at the rate kids are), a bit of extra lead exposure, such as in soldering, is easily compensated for by a bit of nutrition. He said the dangers are "red lead" (which is hotter than our soldering irons can get) and "white lead" (which is the powder on old came). From these, too, the teacher said, adults can recover nicely if caught on time (before you show symptoms), and a lot of C and calcium should do the job; but protection is important when working with red lead or or white lead. Since neither C nor calcium are harmful in (reasonable) high dosages, why not try some between doctor visits? Can't hurt, might help. Your doctor's monitoring will show if it's helping. the CDC's branch that specializes in lead abatement and lead poisoning. He told me that their studies indicate mere handling of "new" lead came wasn't a significant risk. The most danger to SG workers comes from handling old lead in repairs and restoration work. (BINGO!!!) According to the CDC doc. the most dangerous aspect is the white "bloom" that builds up on weathered panels, a lead oxide. |
#34
|
|||
|
|||
"Quasin" wrote in message ... clip He said the dangers are "red lead" (which is hotter than our soldering irons can get) and "white lead" (which is the powder on old came). 'red lead' is reddish lead oxide that has historically been used for paint pigments and a putty components. |
#35
|
|||
|
|||
red and white lead are driers. Both have been used in glazing putty.
That is why taking apart old windows requires dust masks or underwater disassembly. |
#36
|
|||
|
|||
lowered by taking ~ ~ calcium
I knew that 50 lbs bag of whiting would come in handy some day - Check my most up to date email address at: www.haruteq.com/contact.htm banjo bridges, tabs, stained glass: www.haruteq.com **may your moments of need be met by moments of compassion** |
#37
|
|||
|
|||
Sorry, but there are some big inaccuracies in this post.
I come from the UK electronics manufacturing area - we know that European legislation will demand lead-free electronics (including solder) in Europe summer 2006. Not many companies here are in lead-free production yet, but will be starting quite soon. Nearly everyone is evaluating lead-free solders right now; there is frantic activity. Penalties include 2 years jail, product bans and unlimited fines - see WEEE and RoSH legislation. Japanese companies already have some significant lead-free production, including lead-free solders, mostly consumer products I believe. A recent presentation by Senju at the SMART Group 6th Annual Lead-Free Seminar showed the Japanese timetables; for example, Sony, Hitachi and Canon will be lead-free in all their factories (globally) by now. Matsu****a (Panasonic), Fujitsu, and JVC already are, apparently. So there are certainly viable lead-free solders readily available. The USA will inevitably follow, in my opinion. Not necessarily because of legislation (I know of no federal legislation tabled on lead-free electronics), but because of market pressures. The Japanese move to lead-free seems market driven because, whilst they have some recycling laws, they only suggests a lead-free timetable, not mandate one. Therefore the driver is getting your product on the shelves with a "lead-free" logo on it, letting the consumer believe you are more environmentally friendly. And yes, we all pretty much know that banning lead from electronics assembly will do more environmental harm than good; the discussion is a long and involved one, well laid out elsewhere. I am not an expert, but some of the highlights I have come across: 1) There is no evidence of lead leaching out from electronic waste (like pcb assemblies) into the water table. Putting stuff into dumps and ground fill is not good, ultimately, but the fact that the solder contains lead is not relevant. 2) Substitute solder alloys contain silver - inert in itself, but scientists now suspect that lower doses of silver compounds over longer periods of time may have subtle but worrisome effects on fish and other aquatic organisms, affecting the reproductive system in sensitive species. Researchers are investigating the effects of chronic silver exposure on aquatic life. 3) Lead will be replaced by other metals which are far more environmentallydamaging to mine and extract than lead. 4) More energy (higher temperatures) will be used to make solder joints - more pollution & global warming. Someone did the math on this. It appears the better solution would not be to ban lead-bearing solders, but tighten up recycling and product take-back legislation. Peter On Sat, 22 May 2004 20:33:40 GMT, Bromo wrote: On 5/22/04 3:05 PM, in article , "Dennis Brady" wrote: Lead has been regulated in most countries for some time. I believe the only country moving to ban it completely is the U.S. The push for that ban isn't for health and safety but to provide increased economic opportunities for companies hoping to sell alternatives. That is certainly one opinion. The addition of lead into gasoline was initially economically motivated and lobbied for by the lead additive companies - and the possible problems were known at the time. The removal of lead form electronics is motivated by European countries that are starting to see elevated lead levels in their water due to leaching of lead from electronics in landfills. They haven't, until recently, taken steps against lead in gasoline. I fully support the movement to ban lead in the U.S. - for entirely selfish reasons. When it's unavailable in the U.S., I'm gunna become repugnantly rich by smuggling it in from Canada (which as it has done with many things, will NOT be following the poorly thought out and non-scientifically justified American lead). Until a viable alternative for electronics is found - I doubt solders will be lead free for some time. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Lead vs Zinc | Harold E. Keeney \(Hal\) | Glass | 11 | February 12th 04 02:16 PM |
dangers of lead | kasfam | Glass | 16 | December 25th 03 01:22 AM |
Stretching lead | Bart V | Glass | 7 | December 17th 03 04:49 AM |
solder not adhering to lead | M. Paradis | Glass | 1 | November 19th 03 10:54 PM |
Use of Brass Coated Lead Came | Gloria | Glass | 3 | August 19th 03 05:26 AM |