New spray invented that accurately detects lead

[gengar]

A new spray has been developed in The Netherlands that accurately detects lead in objects. By spraying it on an object, it glows green when there is lead present. It's not commercially available and there is not many info on it yet, but it exists. Look it up if you're interested.

[UpperMaster]

cool. 

[Yimpa]

Is this what you’re referring to?

https://www.nwo.nl/en/cases/unexpected-discovery-leads-to-revealing-lead-test

[Michael569]

Something similar is being used to test presence of lead in a water. I did that with our water supply couple months ago. It sort of colours the sample if there is contamination. Problem with these things is they work on yes or no basis so the next question we have to ask is what is the trigger threshold. 

Its kinda like buying those over the counter antigen tests for iron deficiency. It says "yes" or "no" but you don't really get any specific info other than "I'm not anaemic." But anaemia is the most extreme spectrum of low iron levels and there are tiers of low iron that are already suboptimal yet not low enough to meet "anaemic" criteria. You could be one point over the trigger threshold and if the thing is not setup for any deviation tolerance then you wouldn't know. 

Its a good start for sure tho. I can see it working great for testing lead contamination in your wall paints for example, that's probably one of the reasons it was invented. Bet my landlord would love me spraying green pain all over our walls

Hopefully one day we'll have something that you stick into your food like a thermometer and it will evaluate contamination with herbicides, pesticides, heavy metals etc. Hope someone's already working on that. 

Edited February 6 by Michael569