51–60 of 479 posts
Earlier quoted context omitted.
Why is it specially allowed in hot water lines?
I think that is allowed because we don’t drink from the hot water tap.
Is IQ a piece of private information? Does everybody in the country get an IQ test in school? Can we just look that up in the public records? It sure would be useful if it was public and universal. For tracking the effects of lead poisoning for one. Or just factoring it into any big study. We might find something unexpected.
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> Over the past 100 years, Americans' mean IQ has been on a slow but steady climb. Between 1900 and 2012, it rose nearly 30 points, which means that the average person of 2012 had a higher IQ than 95 percent of the population had in 1900.
Is IQ a piece of private information? Does everybody in the country get an IQ test in school? Can we just look that up in the public records? It sure would be useful if it was public and universal. For tracking the effects of lead poisoning for one. Or just factoring it into any big study. We might find something unexpected.
IQ being public might be problematic; I've heard from more than one lawyer that one ought-not use IQ as a hiring filter, unless you have evidence that the IQ test is not biased against any protected groups. Indeed, hiring from more selective universities is, to a certain degree, a way of laundering hiring based off of IQ, since you can pass the buck to the university itself to not be racially biased.
Studies like these always make me wonder what the equivalent of this today. Microplastics? Carbon? What else?
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 so interested and he was happy to share.
>The study, described as "a wake-up call", also estimated that exposure to the toxic metal causes young children in developing countries to lose an average of nearly six IQ points each.
>Their model estimates that 5.5 million adults died from heart disease in 2019 because of lead exposure, 90 percent of them in low- and middle-income countries.
>The research also estimated that children under five lost a cumulative 765 million IQ points due to lead poisoning globally in 2019, with 95 percent of those losses coming in developing countries.
In the article, the 1 IQ point loss level is shown at about 0.25 ug/dL. I don't think this is likely in the US from brass pipe fittings containing 0.5% lead or whatever. I'm not saying that tight lead regulations are/would be bad, but this study seems to focus on the far higher disease and death burden of lead in less developed countries.
Dealing with lead exposure in developing countries would likely have large returns for the global economy, and since plenty of lead pipes were probably laid by colonial powers, has the ring of a moral imperative. But how?
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.
I had a stop valve that went bad and I wanted to replace it with a ball-valve because I prefer quarter-turn valves for shutoff valves. No ball-valves at the hardware store were lead free.
Is IQ a piece of private information? Does everybody in the country get an IQ test in school? Can we just look that up in the public records? It sure would be useful if it was public and universal. For tracking the effects of lead poisoning for one. Or just factoring it into any big study. We might find something unexpected.
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and then stumbles over his words trying to explain cognitive ones as inherently different
was just a funny perspective I’m not trying to start a pogrom with this observation
Earlier quoted context omitted.
It is my understanding that the common filter pitchers don't filter out lead.
That's not correct. It depends on the water filter. A common Brita filter doesn't filter lead. But the referenced filter (Epic) does. There are other filters that can do that, the most popular is ZeroWater, which you can check their datasheet https://www.zerowater.eu/wp-content/uploads/ZeroWater-NSF-ce...