What peer nations measure that Australia does not

Six countries measure the pesticides in their people. France surveys homes for 170 pollutants. California tests water for microplastics. Australia runs none of it.

The United States has measured industrial chemicals in its people's blood and urine every year since 1999. Canada has measured them in 5,700 people every two years since 2007. Germany has run the same survey in waves since 1985 and stores the samples in a permanent specimen bank. South Korea, France and the Czech Republic each run national versions. The European Union pooled 28 countries into a single €74 million study, then made the network permanent with a €400 million successor.

Australia has never run one.

This is the third investigation in our pesticides series. The first, Australia is flying blind on pesticides, found that Australia eats food grown with chemicals peer regulators ban. It tests almost none of its produce publicly, and it no longer tracks what it sprays. The second counted the cost: A$5.3 billion a year in disease and death, about 430 lives, billed to hospitals and families because the industry that profits pays none of it. This piece asks the simpler question underneath both. What does the rest of the world measure that Australia does not?

We checked five kinds of exposure against the countries Australia normally compares itself to: chemicals in people's bodies, indoor air, microplastics, food chemicals, and drinking water byproducts. The result is the same in all five. Peer nations run named, ongoing, national programs. Australia runs none that match.

The chemicals in people

Six countries measure pesticide exposure directly, by sampling people. The United States' NHANES examines about 5,000 people a year and tests for roughly 300 chemicals, including the breakdown products of organophosphate and pyrethroid insecticides. Canada's CHMS measures 5,700 people per two-year cycle. Germany's GerES has run since 1985 and feeds a permanent environmental specimen bank. South Korea's KoNEHS has measured more than 40 pesticide types across three-year cycles since 2009. France's Esteban survey covers more than 100 chemicals. The Czech Republic has run continuous human biomonitoring since 1994 and now holds a 30-year time series.

The EU pooled 28 countries into HBM4EU, a €74 million program that ran from 2017 to 2022. It found that 84 percent of sampled children and adults carried residues of two or more pesticides. Its successor, PARC, runs to 2029 on a €400 million budget.

These programs produce findings Australia cannot produce about itself. Ten years of Canadian data showed 19 of 39 measured chemicals declining between 16 and 75 percent: direct evidence that exposure falls when regulation tightens. No Australian agency could run that analysis, because there is no Australian baseline to decline from.

Why the cross-country comparison dead-ends

The first article compared 13 countries on how many pesticide active ingredients they ban. The second compared them on what the chemicals cost. The next step would compare what people in each country carry. It cannot be done.

Of the 13 countries in the ban-count set, exactly two, the United States and Canada, run ongoing national pesticide biomonitoring. The German, South Korean, French and Czech programs all sit outside the ban-count set. Two countries are too few for any trend. The exposure measurement exists in almost none of the countries whose ban counts can be compared. The question of whether banned-chemical countries carry lower body burdens, or bear different cancer rates, has no dataset to land on.

That is the structural finding behind our earlier bans-versus-cancer scatter. The comparison fails for a structural reason: the countries being compared never took the measurements, and no one can add them retroactively.

The air inside the house

France runs the only repeated, nationally representative indoor air survey among peers. The first campaign instrumented 567 homes for about 30 pollutants between 2003 and 2005. The second measured 571 homes for more than 170 pollutants between 2020 and 2023, and first results published in 2025 found 70 percent of homes above PM2.5 benchmarks. Germany's GerES V sampled the air in 639 homes for seven days each, testing for volatile organic compounds and 15 carbonyls including formaldehyde. Canada's cross-country radon survey put 6.9 percent of homes above the 200 Bq/m³ guideline. South Korea's Indoor Air Quality Control Act imposes mandatory, monitored limits on PM2.5, carbon dioxide, formaldehyde and total bacteria across more than 20 classes of public facilities. It tightened the PM2.5 limit to 40 µg/m³ from January 2026. The United Kingdom built its radon map from measurements in more than 560,000 homes.

Australia has never run a national indoor air survey. Its federal environment department states: "Australia currently has no specific controls on indoor air quality, apart from workplace situations." The last broad national synthesis was a 1997 State of Environment paper. ARPANSA's radon evidence rests on a single 1990 home survey.

Microplastics

No country yet measures microplastic particles in human tissue at national scale; the science is too young. What peers measure instead is the plastic chemistry in people. American surveys have tracked phthalate metabolites and BPA in urine nationally since 1999, Canadian ones across six survey cycles, and aligned European studies cover more than 10,000 people. Australia measures none of them, because it has no national biomonitoring to measure them with.

The particles themselves are coming into regulation. California became the first jurisdiction in the world to require statewide drinking water testing for microplastics, with monitoring under way since 2023 and results published. The EU's recast Drinking Water Directive puts microplastics on its watch list with a defined measurement method. Japan has run national marine microplastic surveys since 2017 at about 100 offshore sites a year.

The Australian Drinking Water Guidelines contain no microplastics guideline value, no method and no monitoring requirement. Australia's one large-scale study, the NSW Broadscale Microplastic Assessment, sampled 120 estuaries between 2021 and 2024 and reported in 2026. No national program continues any of it.

The chemicals in food

The United States has run a Total Diet Study continuously since 1961: four times a year, about 280 foods bought at retail, prepared as eaten, tested for more than 200 substances. Canada has run one since 1969. France's current study covers more than 250 substances, Germany's covers more than 90 percent of the diet, and Japan, South Korea and New Zealand each run versions.

Australia's Total Diet Study is nominally biennial. The 25th, published in 2019, used food bought in 2013 and tested 88 foods for 206 agricultural and veterinary chemicals. The 27th tested 30 PFAS chemicals. FSANZ has commissioned no 28th. Real gaps between studies run five to eight years per topic.

The residue surveillance gap is wider. The US Pesticide Data Program tested 9,832 samples across 21 commodities in 2023. The EU's coordinated program covered 13,246 samples plus 132,793 national risk-based samples in the same year. Australia's National Residue Survey collected 6,289 grain samples, is voluntary for horticulture, and tests compliance against Australia's own limits. The first article in this series found those limits among the world's loosest.

The EU is also legally required to re-evaluate all 315 food additives authorised before 2009, and has completed more than 70 percent. FSANZ assesses additives before approval and monitors the literature reactively. No Australian additive approval has ever been systematically re-tested against newer evidence.

The dietary survey layer is missing too. The United States links continuous dietary recalls to urinary chemical panels; France merged its diet and biomonitoring surveys into one ongoing program. Australia fielded national dietary surveys in 1995 and 2011-12, and the third, collected in 2023, was released in June 2026 after a 14-year wait. No Australian dietary survey has ever been linked to chemical exposure measurement.

The byproducts in the water

Chlorination kills pathogens and creates disinfection byproducts, trihalomethanes among them, which IARC classes as possibly carcinogenic. US law mandates quarterly monitoring in about 156,000 public water systems against a trihalomethane limit of 80 µg/L. The results feed a publicly downloadable federal database, and every household receives an annual water quality report. The EU sets a binding limit of 100 µg/L and obliges member states to publish water quality results. Ireland publishes compliance for every supply, and the European Court of Justice found Ireland in breach in 2024 over its trihalomethane failures.

That data is what made the epidemiology possible. An EU-wide study across 28 countries built exposure from routine utility records and estimated that up to one in 20 European bladder cancer cases is attributable to drinking water byproducts. A US National Cancer Institute cohort linked the same exposure to bladder cancer over more than 20 years of follow-up.

Australia's guideline value for trihalomethanes is 0.25 mg/L, endorsed in 1996 and unchanged since, with excursions to 1 mg/L permitted. That is 2.5 times the US limit and 2.5 times the EU's. The guidelines set no value at all for haloacetic acids or nitrosamines, and they are not legally enforceable; each state decides what to implement. No national drinking water quality database exists. A 2022 audit of 177 utilities found detailed public reporting only in major-utility service areas, and the Australian Water Association estimates about 1.2 million regional NSW residents lack detailed water quality information. No Australian study has linked byproduct exposure to health outcomes, and without utility-level data, none is possible.

The pattern

Australia is the only country in this comparison that lacks all five measurements at once. The gaps compound. When the second article's cost model needed exposure-response data, it used European epidemiology, because European epidemiology is what exists.

Every peer program named here also produced a finding: Canada's produced the declining-exposure evidence, HBM4EU's produced the 84 percent figure, the EU's water database produced the bladder cancer attribution. These programs are the machinery that turns exposure into knowledge a country can act on. Australia has none of the machinery.

Chemical exposure measurement: Australia vs peer nations

Comparison criteria	Peer nations	Australia
Chemicals in people (biomonitoring)	6+ national programs; EU pooled 28 countries	None
Indoor air	National dwelling surveys (France, Germany); radon maps (US, Canada, UK); enforceable public-facility limits (South Korea)	None
Microplastics	Plastic chemicals in people (US, Canada, EU); drinking water testing (California, EU); ocean monitoring (California, EU, Japan)	None
Dietary chemicals	Total Diet Studies in 7 countries; EU re-evaluates all old additives	None
Drinking water byproducts	Mandated monitoring, public databases, per-supply reporting (US, EU, Canada)	None

The count that has never been run

The Senate PFAS committee recommended in November 2025 that Australia build a national human biomonitoring program, naming the American, Korean, Japanese and European programs as models. The Australian Academy of Health and Medical Sciences has asked for the same thing. The government has not built one, and no Australian agency has published a reason.

France surveyed 571 homes for 170 pollutants. Canada found 19 of 39 chemicals falling over ten years. The EU traced one in 20 bladder cancers to drinking water. None of that work is beyond Australia's capacity. It has simply never been commissioned.

The fourth and final article in this series takes the Senate's recommendation at its word. It designs the program: what a national exposure measurement system built now would measure, what it would cost, and what it would have to show for the money.