Why are We Still Exposing Our Children to Lead?

The toxic legacy of old infrastructure and even older excuses

When my wife Nancy was pregnant with our second child, she did everything by the book. Nancy was a pediatrician at the university hospital in Rochester, NY. She knew the basics: eat well, rest, drink plenty of water. She made a point of getting her eight cups a day, often from the hallway drinking fountain near her office.

At 14 weeks, she had a miscarriage.

A year later, we found out that the fountains she had been using tested positive for shockingly high levels of lead—between 700 and 1,500 parts per billion (ppb). For context, that’s up to 300 times higher than Health Canada’s current guideline of 5 ppb.

And it wasn’t a new problem. The hospital had learned about the contamination a decade earlier. At some point, someone had even taped cardboard over the fountains with a warning. But over time, the cardboard came off, people forgot, and the fountains went back into use. No one told hospital staff. No one told Nancy.

She kept drinking from them, assuming the water in a hospital—of all places—was safe.

Lead: An Old Problem that Won’t Go Away

Lead in drinking water is an old problem, but it keeps showing up in new places—schools, daycares, hospitals, public buildings. We’ve known for over a century that lead is a poison, especially harmful to children and developing fetuses. And still, it lingers, exposing people every day.

Historian Werner Troesken showed that U.S. cities with lead service lines had 12 to 23% higher infant mortality rates than other cities in the early 20th century. Even back then, the toxic effects of lead were clear. But lead was cheap, malleable, and easy to work with. The lead industry pushed it hard. Cities bought it. Pipes were installed. And generations were quietly exposed.

No Safe Level

Today, we understand even more. Research has shown that even very low levels of lead exposure can cause serious health effects. Small increases in blood lead levels are linked to:

• Increased risk of miscarriage

• Severe hypertension and premature birth in pregnant women

• Lower IQ and attention issues in children

These aren’t theoretical dangers. They’re real, measurable outcomes.

So, why aren’t we doing more?

Why haven’t we removed these fountains? Why haven’t we replaced aging lead service lines more aggressively? Why aren’t we holding building owners and public institutions accountable when children and staff are exposed?

Outdated Standards, Real-World Costs

Much of the inaction stems from outdated policy. Many health authorities still use 100 ppb (10 µg/dL) as the threshold for concern in blood lead levels—a number rooted in decades-old science. We now know that no amount of lead is safe.

Harvard researcher Ronnie Levin conducted a cost-benefit analysis showing that for every $1 invested in removing lead service lines, society gains at least $35 in benefits. That includes lower health care costs, improved cognitive outcomes in children, higher lifetime earnings, and reduced rates of cardiovascular disease and premature death.

The takeaway is clear: removing lead isn’t just good policy—it’s a high-return investment. (Few stocks have this rate of return.) The same logic applies to lead-contaminated drinking fountains in schools, hospitals, and public buildings. The costs of replacing them are modest compared to the long-term economic and human benefits of protecting people from a known poison.

A System of Inaction

The reluctance to lower the threshold comes, in part, from a fear of turning low-level lead poisoning into a clinical problem—one that would require screening, treatment, and reporting. That’s understandable. We don’t want to “medicalize” something that’s fundamentally an environmental failure.

But acknowledging the risks of low-level lead poisoning doesn’t mean routinely screening children during a well-child visit. It means eliminating the sources.

The solution isn’t more blood tests. The solution is less lead exposure.

The Toll on Children–and Society

Lead exposure hits children hardest. Their brains are still developing. A small drop in IQ or a slight increase in behavioral problems might not seem dramatic for an individual child, but at a population level, it has real consequences. It means more kids struggling in school and fewer reaching their potential. It shifts the curve.

And the effects aren’t evenly distributed.

Children living in older, poorly maintained housing are disproportionately exposed. These same kids often face additional environmental stressors: air pollution, pesticides, flame retardants. The cumulative burden is heavy, and it shows up in the form of health disparities, educational gaps, and lost potential.

And let’s be clear—this isn’t just about children.

Adults Aren’t Immune

Low-level lead poisoning affects adults too–contributing to hypertension, kidney disease, heart disease, and pregnancy loss. These outcomes are costly, both personally and societally. The longer we wait to act, the higher the price we pay—in health care costs, in productivity, in human suffering.

So why are we still treating lead exposure like a niche issue? Why are schools and hospitals—symbols of safety—still serving up toxic water from fountains known to be contaminated for over a decade?

Why do we still cling to outdated thresholds, pretending they offer real protection?

The truth is, we don’t need more studies to know what to do. We need a sense of urgency. We need leadership. And we need to stop accepting incremental harm as inevitable.

What We Must Do Now

• Remove lead-containing drinking fountains from schools, hospitals, and public buildings

• Replace lead service lines—quickly and completely

• Update public health guidelines to reflect current science

• Stop relying on “flushing” or vague reassurances as solutions

Because safe water isn’t a luxury. It’s a basic human right.

What are We Saying With Our Silence?

If we can’t even ensure that the drinking fountains in schools, day care programs and hospitals are free from poisons, what does that say about our priorities?

It’s time to stop debating what level of lead is “acceptable” and start asking why we tolerate any at all. It is time to eliminate lead wherever it is found.