PFAS, Pesticides, and the Quiet Drift into Our Food Supply
There’s a quiet shift happening in the modern world. Not loud. Not dramatic. Not headline-grabbing in the way a crisis normally is.
But it may be one of the most important changes to our food and water system in decades.It centres around a class of chemicals you’ve probably heard of—but may not yet fully grasp:
PFAS.
Often called “forever chemicals.”
And for good reason.
What Are PFAS (and Why Should You Care)?
PFAS—short for per- and polyfluoroalkyl substances—are a group of thousands of synthetic chemicals designed to resist heat, water, grease, and stains. PFAS (per- and polyfluoroalkyl substances)
They’re used in everything from:
- Non-stick cookware
- Waterproof clothing
- Firefighting foam
- Food packaging
- Industrial processes
The problem?
They don’t break down.
Not in soil.
Not in water.
Not in your body.
They accumulate.
And once they’re in the system—whether that’s your bloodstream or a river—they tend to stay there.
The American Wake-Up Call
Recent investigations in the United States have revealed something deeply uncomfortable:
PFAS are showing up not just in water…
But directly in the food chain itself.
Studies have found:
- PFAS compounds in pesticides
- PFAS residues in crops
- PFAS contamination moving from soil → plant → human
In fact, research shows PFAS (or related fluorinated compounds) are increasingly used in modern agricultural chemicals—sometimes intentionally, sometimes as by-products.
This creates a simple but powerful reality:
We’re not just exposed to PFAS from products.
We’re ingesting them.
“But That’s America…” — Is It Relevant to Australia?
This is where many people switch off.
“We don’t have that problem here.”
But the data says otherwise.
1. PFAS are already widespread in Australia
PFAS contamination has been detected across Australian waterways, soil, and ecosystems, with sources including firefighting foam, industrial use, and agriculture.
They’ve been described as “ubiquitous in the environment”—present in water, sediment, and even homes.
2. They’re showing up in Australian water supplies
A major study from UNSW Sydney found:
- 31 different PFAS chemicals in Sydney drinking water
- Including compounds never previously recorded in Australian tap water
3. They’re entering the food chain
In NSW, PFAS-contaminated biosolids (treated sewage used as fertiliser) have been applied to farmland—raising concerns about contamination of crops and livestock systems.
Add to that:
- PFAS-linked pesticides registered for use in Australia
- Evidence that agricultural chemicals can introduce PFAS into soil and plants
And the picture becomes clear:
The pathway seen in the U.S.—from chemical → crop → human—is already forming here.
The Regulatory Gap
Here’s where things get uncomfortable.
Globally—and in Australia—regulators are still catching up.
- PFAS includes thousands of chemicals, but only a handful are routinely tested or regulated
- Standards vary widely between countries
- Some experts argue regulation is too slow or incomplete
Even in Australia:
- PFAS are detected in drinking water and food systems
- Yet many supplies still meet “guidelines” because those limits are set higher than in other countries
So you get this strange contradiction:
The water can be “compliant”…
And still contain PFAS.
The Health Question (What We Know—and What We Don’t)
Let’s stay grounded here. The science is still evolving.
Authorities in Australia note that:
- Evidence of direct harm at low levels is still being studied
- Associations exist with cholesterol changes, immune effects, and other biological responses
But here’s the key point:
PFAS accumulate over time.
And they are:
- Persistent
- Bioaccumulative
- Difficult to remove once ingested
Which means risk isn’t just about today’s exposure.
It’s about lifetime accumulation.
The Bigger Shift Most People Miss
This isn’t just a “chemical problem.”
It’s a systems problem.
Think about it:
- Chemicals used in industry →
- Enter soil and water →
- Absorbed by crops →
- Consumed by humans →
- Recycled through waste →
- Returned to farmland as fertiliser
That’s not a leak.
That’s a loop.
And once PFAS enter that loop, they tend to stay in circulation indefinitely.
So What Can You Actually Do?
This is where most articles fall apart.
They either:
- Panic you
- Or leave you with nothing practical
Let’s keep it simple.
1. Accept the reality
PFAS exposure is now part of modern life.
Avoiding it entirely isn’t realistic.
2. Focus on controllable inputs
You can’t control global agriculture.
But you can control:
- What you drink
- How your water is filtered
- Your daily exposure baseline
3. Understand water as a leverage point
Water is one of the highest-frequency inputs into your body.
You drink it.
You cook with it.
You absorb it through skin.
Which makes it one of the most powerful places to:
- Reduce cumulative exposure
- Improve overall input quality
The Real Question
This isn’t really about PFAS.
Not entirely.
It’s about something deeper:
At what point do we stop assuming “approved” equals “optimal”?
Because history has shown—again and again—that:
- Lead was once acceptable
- Asbestos was once acceptable
- Many pesticides were once acceptable
Until they weren’t.
PFAS may follow a similar arc.
Final Thought
You don’t need fear to respond intelligently to this.
You just need clarity.
The American data isn’t an isolated warning.
It’s a preview.
And Australia?
We’re not separate from that story.
We’re simply a few steps behind it. Here at AlkaWay we’ve been onto the PFAS problem for some years now! Best way to remove it seems to be carbon, and we don’t just use common carbon. We use the best catalytic carbon available - in the amazing ultraStream. Click to see more.