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Lead poisoning causes more death, IQ loss than thought: study

medicalxpress.com

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Re: Lead poisoning causes more death, IQ loss than thought: study

#181

Post by asdff »

nayuki wrote: post #126
mrob wrote: post #110

Earlier quoted context omitted.

Here's a study showing various levels of lead leaching into drinks from ceramic mugs found in the US: https://foodsafetyandrisk.biomedcentral.com/articles/10.1186... Important quote: "The estimated daily dose of lead exceeded the California Maximum Allowable Dose Level of 0.5 μg per day for one of the five mugs tested." Previous HN discussion: https://news.ycombinator.com/item?id=29606600

I probably dodged this ceramic problem because I drink from borosilicate glass beakers. (Yes, I buy new, unused labware for cooking/drinking use.)

Are those not too fragile for daily use? A pint glass is so much thicker in comparison than a beaker.

Re: Lead poisoning causes more death, IQ loss than thought: study

#182

Post by jstarfish »

trashface wrote: post #125
hedora wrote: post #6

I'd like to point out that, although it is illegal to put lead in water supply lines in the US, there is a loophole that allows it in hot water lines. As a result, for certain fittings, most big-box hardware stores only sell the leaded variants, and label them "hot water heater supply line" or something similar.

There is also an exception for leaded gas in small/private jets ("AVGas") so its used in some of those formulations.

That can't be the only exception. Maybe nobody sells it premixed anymore but back in the 90s we had to mix lead additive into gasoline for vintage motorcycles.

Re: Lead poisoning causes more death, IQ loss than thought: study

#183

Post by londons_explore »

tredre3 wrote: post #153
jacquesm wrote: post #146

Earlier quoted context omitted.

Plastics for potable water tend to be copper lined where I live, not sure what is used elsewhere.

I've never heard of copper-lined PEX, can you tell me more?

I think op may be referring to 'barrier pipe', which is a plastic -copper-plastic sandwich, which is designed to keep out pollutants which can diffuse through the plastic - eg. Diesel oil.

If you don't use it for underground water pipes in cities, you'll normally get complaints from homeowners about 'chemical smelling' water, particularly first thing in the morning when water has been sitting stationary in pipes all night.

Re: Lead poisoning causes more death, IQ loss than thought: study

#184

Post by PartiallyTyped »

bmacho wrote: post #105
uoaei wrote: post #64

Earlier quoted context omitted.

Goodhart's law strikes again. As soon as IQ becomes a measurable thing, populations that measure it will act in ways that increase it. Shocking, I know.

Indeed, except that IQ has not became a thing to optimize for, and even if it was, there are no known ways to increase it.

Education and QoL seem to be correlated.

Re: Lead poisoning causes more death, IQ loss than thought: study

#185

Post by asdff »

Modified3019 wrote: post #119
Exuma wrote: post #55

Earlier quoted context omitted.

Its not gone... pretty much every single person that shoots guns need to be aware of this. Of course gun people don't care about their health and they think with their 45 ug/dL lead level that youre "overreacting"... D-Lead is a very good company for deleading that i use obsessively, when shooting I once called them and talked to an engineer about lead for like 1.5 hours. I think it really surprised him someone was s…

It’s definitely a concern of mine, thanks for the heads up about that company. For those that aren’t aware, the primer in cartridges typically have lead styphnate, barium nitrate, and tetrazene, among other things. So even if your bullets have a complete copper jacket, you still get significant lead particulate exposure, especially indoors or with a suppressor with high back pressure. No idea if whatever smokeless po…

Are lead pellet air rifles even worse then? I remember cleaning the barrel of one and the cleaning tool was so very dirty.

Re: Lead poisoning causes more death, IQ loss than thought: study

#187

Post by asdff »

giantg2 wrote: post #102
clumsysmurf wrote: post #73

Earlier quoted context omitted.

Some of my bloodwork revealed subclinical lead poisoning. Part of the investigation was to take the dirty A/C filter in for lab analysis of the dust. I had lead in that filter, so I moved out. No idea where it came from. EDIT: It was an apartment. FWIW, even new apartments can have other issues, like a brand new place my friend was working on had rampant mold issues (built & exposed throughout monsoon season). So you…

Who bought the place after disclosing airbourne lead dust in the house?

In california if you sign a lease for a building built at least 20 years ago you probably get a boilerplate lead warning document as well. Its like a prop 65 situation where so many things are labelled that the label itself loses meaning.

Re: Lead poisoning causes more death, IQ loss than thought: study

#188

Post by jhallenworld »

pixl97 wrote: post #162
Syonyk wrote: post #67

Earlier quoted context omitted.

And you can't, with a straight face, tell me that lead free solder matters, while we're still using lead acid batteries with dozens of pounds of lead in every car out there (to within a rounding error, and, yes, it includes almost all EV/PHEVs). The list of exemptions is very long. Lead free solder is objectively worse as a solder for just about any metric related to longevity. So you have to weigh the risks of lead…

>while we're still using lead acid batteries with dozens of pounds of lead in every car out there Mostly those cars stay outside and the batteries tend to be expensive and highly recycled, electronics on the other hand, show up everywhere and have a poor history of recycling.

Batteries are recycled, check it out:

https://www.youtube.com/watch?v=kNGg0P7B5fI

Re: Lead poisoning causes more death, IQ loss than thought: study

#189

Post by londons_explore »

jeffbee wrote: post #4

There have always been people on this site who think RoHS was a conspiracy. There are a few people who do not take the public health problems caused by lead very seriously.

In the last year, how many tons of lead ended up in solder?

And how much has gone into fuels (especially aviation fuel)?

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