Here's a basic question, and if the goal is preventing lead exposure, it should be the first one we ask.
Why are people exposed to lead?
Lead is in the environment. Soil, old housing, water, food, consumer products. Those are the vectors, the specific sources and routes. But listing them doesn't really tell the whole story.
Most of us live on roads with cars. Why are we not exposed to their bumpers? Every kitchen in America has forks and knives. Why are we not hurt by their edges?
Accidents happen. Sometimes malicious or careless behavior causes injury. But the vast majority of people avoid harm from these objects because they can see them, hear them, feel them. They are aware of the danger.
That's the thing about lead. It is invisible. It has no smell, no taste, no immediate sensation. You can't avoid it the way you avoid a knife because you can't perceive it the way you perceive a knife.
For decades, "lead poisoning prevention" has been shaped by that fact. For some people it has been a passion project. For others, a job. For others still, a grift. When money is the draw, the results are often uninspired, or worse, so poorly constructed they do more harm than good.
But the principle is simple. If everyone were aware of the danger and the presence of lead, avoiding it, cleaning it up, and remediating it would be elementary. It isn't hard. It's obscure.
Primary prevention has been a perpetual afterthought in a country that struggles to screen children for the consequences of exposure, let alone the exposure itself. Blood tests reveal consequences. Has your child been poisoned yet? No? Good. See you next year.
Awareness is the prevention. Visibility is the prevention.
A tool that makes lead visible, so a parent can see it in their own kitchen, the way they can see a knife, is the thing that has been missing.
That's the project.
That's what the rest of this book is going to be about.
You can catch it with a flashlight and spray bottle in your hands.