Aren't you just waving a flag for less regulation by rushing to align yourself with this inarguable example of regulatory success? Rather than discussing the issue of what impact lead had, or how we might apply this longitudinal method to other other problems (making hair archives into a general environmental data resource), or develop longitudinal methods in general, You've chosen to issue a clarion calla gainst 'bad regulation'.
Turning "environmental regulation" into a unified bloc that must be either supported or opposed in totality is a manipulative political maneuver and it should be forcefully rejected.
....nobody was arguing this. It's a classic straw man fallacy. Further, you're leveraging a lot of emotional terms while providing zero examples, inviting potential sympathetic readers to just project their feelings onto any regulations they happen to dislike rather than establish any sort of objective criteria or lay out any map/model of regulatory credibility that could be subject to challenge or criticism.
I'm not rushing anywhere or arguing for or against anything at all in concrete detail. I'm trying to refuse the "all or nothing" fallacy that, yes, some people are arguing, and no, is not a straw man (you can see sincere examples of that viewpoint expressed in this very thread).
If I'm doing anything (and I'm self-consciously and intentionally doing next to nothing here), it is suggesting or reaffirming an extremely basic rational grid that, in my opinion, ought to apply across all aisles as universal, table-stakes context within which people who disagree with one another can try to reach rational, reality-informed compromise.
If I'm issuing any clarion call, it is this and only this:
Some environmental regulation is good, and some environmental regulation is bad, and we should use science to figure out which is which and then legislate based on the best good-faith interpretation of that science that we have access to.
That's it. Re-read my parent comment, if you don't believe me. That's literally all it says.
The reflexive contrary reaction, in this thread, against what I see as an extremely mild proposal justifies the (frankly quite minimal) effort I made in articulating it. This is not a universally accepted starting point for public policy discourse, though I think it should be (which is why I said so, in so many words).
Rational people, like both you and me I hope, have to voice this perspective and insist upon its acceptance and application if it is to survive the political polarization we're enduring as a society right now.