Asbestos Gravel in Burgenland: Facts, Finds and Open Questions

What happened?

On 2 January 2026, four quarries in southern Burgenland — Pilgersdorf, Bernstein, Rumpersdorf and Badersdorf — were closed by Austrian authorities. The reason: analyses found asbestos contents of 5 to 50 per cent in the extracted serpentinite. The legal threshold for placing asbestos-containing materials on the market is 0.1 per cent.

The trigger was a regulatory step at the turn of the year: on 1 January 2026, Austria's occupational exposure limit for airborne asbestos fibres was lowered from 100,000 to 10,000 fibres per cubic metre of air. The rock had not changed — the law had. Under the new, stricter limit, extraction at the affected quarries was no longer permissible.

The full story was broken by the Austrian investigative weekly Falter in issue 13/2026 (24 March 2026, reporters Jürgen Klatzer and Matthias Winterer) in a multi-page investigation. Their central finding: authorities, expert witnesses and quarry operators had known about the asbestos problem in this region since the 1990s — action only came now. Since January 2026, Greenpeace Austria has additionally been running its own sampling campaign, documenting where material from these quarries ended up and pushing for transparency and clean-up.

The four closed quarries

According to the Falter investigation (Klatzer/Winterer, Falter 13/2026), the confirmed contaminated batches originate from four quarries in southern Burgenland. All four extracted serpentinite from the geological context of the so-called Rechnitzer Fenster.

• Pilgersdorf (Oberpullendorf district): one of the largest extraction sites in the region, subject to an environmental impact assessment (UVP) procedure since 2011, contested by the then-operator. Products: chippings, rolled aggregate, construction sand.
• Bernstein (Oberwart district): already the subject of an asbestos measurement by the ZFE Graz research institute in 1994. Products: chippings, railway ballast.
• Rumpersdorf (Oberpullendorf district): in 2008, the then-federal minister issued a product recall for 25-kilogram bags of winter road grit sourced from this quarry. Products: chippings, winter road grit.
• Badersdorf (Oberwart district): became publicly known in 2026 through a documented case along a private garden fence where dust-tape measurements showed 280 fibres per cm² — well above the 100/cm² threshold typically used as an indicator of acute concern.

All four quarries were closed by order of the authorities on 2 January 2026. Operator names are detailed in the Falter reporting; we limit ourselves to the publicly undisputed attribution and refer to the linked original source for further details.

Where has contaminated material been found?

Material from the four quarries was distributed on a massive scale over three decades. Falter puts the total at roughly 50 million tonnes since 1990. The following list is based on finds by Greenpeace Austria since January 2026, supplemented by regional reporting from ORF Burgenland and the Burgenländische Volkszeitung (BVZ). It is continuously updated.

Southern Burgenland

• Oberwart Hospital (access road, car park) — the state task force has already confirmed fibres in outdoor air here.
• Rechnitz skate park (open-air, heavy use by children and teenagers)
• McDonald's playground in Oberpullendorf — cleared immediately after the Greenpeace find
• Neumarkt im Tauchental (public area)
• Badersdorf (private garden fence; 280 fibres/cm² dust-tape measurement)
• Ollersdorf (Güssing district) — boundary stones at the edge of a children's playground; closed by the mayor following the Greenpeace find. Source: ORF Burgenland, 15 April 2026.

Northern Burgenland and Lake Neusiedl

• Winden am See
• Breitenbrunn am Neusiedler See

Styria

• Hartberg (municipal areas)
• Neudau (pavements)

Lower Austria

• Krumbach
• Kirchschlag in der Buckligen Welt
• Wiener Neustadt (single find)

Transport infrastructure (cross-regional)

• Mogersdorf rest stop on the S7 motorway — cleared by ASFINAG following the Greenpeace find
• Businesspark Steinberg-Dörfl

Hungary

• Bozsok (directly at the Austrian border)
• Szombathely — asbestos-containing material confirmed on a gravel road in a residential area. Source: ORF Burgenland, 15 April 2026.

This list is not exhaustive. Greenpeace continues to add to it; new reports from affected municipalities arrive week by week. If you know of a case we should include, please write to servus@ungiftig.at — we verify and add with a source citation.

How dangerous is the asbestos gravel — really?

The assessment of the actual health risk posed by the serpentinite gravel is currently the subject of public dispute — and the differences are substantive, not rhetorical.

The state task force under medical professors Hans-Peter Hutter and Hanns Moshammer (Medical University of Vienna) sees, based on measurements to date, "no acute danger to the population." Their basis is the first set of air measurements from 19 February 2026 at Oberwart Hospital (474 to 1,346 asbestos fibres per cubic metre, mean 829) and at Oberwart Town Hall (166 to 760 fibres/m³, mean 386). For context: since January 2026, the Austrian occupational exposure limit has been 10,000 fibres/m³ — the measured values lie below that threshold.

Greenpeace Austria and environmental toxicologist Dr. Norbert Weis criticise this framing as premature. Three points: first, the measurements were taken under cold, damp winter conditions that bind fibres to the ground; summer heat and dry, windy conditions have not yet been tested. Second, surface dust-tape measurements — for instance the 280 fibres per square centimetre in Badersdorf, against a threshold of 100/cm² — signal significant contamination in place. Third, there is no safe threshold for inhalable asbestos fibres by current scientific standards — every exposure adds statistically to the long-term risk.

The medical facts neither side disputes

• Chrysotile (serpentine asbestos) and amphibole asbestos (actinolite, tremolite) are both classified as Group 1 carcinogens by the IARC.
• Asbestos-related diseases — lung cancer, mesothelioma, asbestosis — have a latency of 20 to 50 years after first exposure. Patients diagnosed today were typically exposed in the 1980s or 1990s.
• The fibre morphology is what makes asbestos dangerous: long, thin, biopersistent. Fibres are inhaled, lodge in lung tissue, and act as a non-degradable foreign body over decades.
• Chrysotile is generally considered somewhat less aggressive than the amphibole forms — but "less aggressive" does not mean safe.

Our assessment: neither panic nor complacency is warranted. The gravel is not acutely threatening as long as it is not crushed, disturbed or worked dry. But the long-term perspective is serious, and for sensitive uses — children's play areas, hospitals, high-traffic mechanical wear — caution until the picture is clarified is the defensible position.

Taskforce Asbestos Burgenland: Is the state recommending self-disposal of asbestos material?

On 15 April 2026, ORF Burgenland reported on a further find in Ollersdorf (Güssing district). In the same report, the state task force was quoted with a recommendation that concerns us technically:

„Gemeinden und Privatpersonen sollten nachgewiesenes Asbest- oder verdächtiges Material unter Einsatz von Wasser entfernen und fachgerecht entsorgen."

[Translation: "Municipalities and private individuals should remove confirmed or suspect asbestos material using water and dispose of it properly."]

On the question of where to take the material:

„Für eine Rückgabe oder Reklamation des Materials sei der seinerzeitige Verkäufer zuständig — hierbei könnte es sich zum Beispiel um einen Steinbruch handeln."

[Translation: "The original seller would be responsible for taking the material back — this could, for example, be a quarry."]

Why this recommendation is problematic

Asbestos-containing material is classified as hazardous waste under the Austrian waste-catalogue regulation (AVV, key numbers 17 06 01 and 17 06 05) — whether naturally-occurring asbestos in rock falls under this classification is not conclusively settled in law, as we discuss further below. Regardless, the handling, transport and disposal of asbestos-containing material are subject to requirements that are entirely absent from the task force's recommendation:

Handling requires personal protective equipment: P3 respiratory protection, disposable protective suit, gloves. Without this equipment, any manual removal amounts to uncontrolled fibre exposure — even "using water."

Transport of hazardous waste is subject to ADR (the European Agreement concerning the International Carriage of Dangerous Goods by Road). A private vehicle without the appropriate labelling and documentation is not a legal transport vehicle for asbestos waste.

Disposal must be carried out through licensed collection points or authorised waste-management companies. A quarry — even the one that originally sold the material — is not a licensed asbestos disposal facility.

The task force may be relying on the 1999 Administrative Court (VwGH) ruling, which held that naturally-occurring asbestos in rock does not count as an "intentionally introduced substance." This argument is not wrong — but it covers neither the transport nor the disposal, both of which are independently subject to dangerous-goods and waste regulations.

Our assessment: the recommendation is dangerously misleading for non-specialists. Anyone who follows it without involving professionals risks fibre exposure to themselves, in their vehicle, along the transport route and at the delivery point.

Open letter to Prof. Hutter

Because we receive daily calls from people who want to act on this recommendation, we sent a formal letter on 15 April 2026 to OA Assoz.-Prof. Priv.-Doz. DI Dr. med. Hans-Peter Hutter, head of the state task force and specialist in environmental medicine at the Medical University of Vienna.

We ask specifically: on what legal and safety basis does the recommendation for self-removal rest? And: is a clarification planned?

Read the full letter (15 April 2026)

Sehr geehrter Herr Prof. Hutter,

ich bin Geochemiker (PhD ETH Zürich) und betreibe ungiftig.at, eine Schadstoffberatung in Niederösterreich und Burgenland. Ich verfolge die Arbeit der Taskforce aufmerksam und erhalte derzeit täglich Anfragen von Betroffenen aus der Region.

In einem aktuellen ORF-Bericht wird die Taskforce mit folgender Empfehlung zitiert: Gemeinden und Privatpersonen sollten nachgewiesenes oder verdächtiges Material unter Einsatz von Wasser entfernen und fachgerecht entsorgen. Als Rückgabeweg wird der ursprüngliche Verkäufer, etwa ein Steinbruch, genannt.

Dazu habe ich eine konkrete fachliche Frage: Auf welcher rechtlichen und sicherheitstechnischen Grundlage beruht diese Empfehlung?

Nach meinem Verständnis gilt asbesthaltiges Material unter der VVEA als gefährlicher Abfall. Für dessen Handhabung, Transport und Entsorgung gelten spezifische Vorschriften, die Privatpersonen ohne entsprechende Ausrüstung und Kenntnisse in der Regel nicht erfüllen können. Die Empfehlung zur Eigenentfernung und Rückgabe an den Steinbruch lässt diese Anforderungen unerwähnt.

Mich interessiert, ob die Taskforce diese Einschränkungen bewusst ausgelassen hat, weil sie für natürlich vorkommenden Asbest im Gestein rechtlich eine andere Einschätzung vertritt, oder ob eine Klarstellung geplant ist.

Ich frage nicht, um zu konfrontieren, sondern weil ich täglich Menschen berate, die auf Basis dieser Empfehlung handeln wollen, und weil ich ihnen eine korrekte Auskunft schulde.

Für eine Rückmeldung wäre ich dankbar.

Mit freundlichen Grüßen,
Dr. Maximilian Mandl
ungiftig.at, +43 720 732 583

A response is still pending. We will document Prof. Hutter's reaction here in full — regardless of whether it arrives or not.

What is serpentinite — and why does it contain asbestos?

To understand why these four quarries in particular produced asbestos-containing rock, a geochemical view is useful. Dr. Kasia Liszewska, co-founder of Ungiftig, wrote her PhD at ETH Zürich on high-precision silicate and isotope analytics — hydrated ultramafic rocks like serpentinite fall squarely within that research field.

The rock

Serpentinite is a hydrated ultramafic rock — in plain terms: former upper-mantle rock (rich in magnesium and iron, poor in silicon) that has reacted with water over geological timescales. The original minerals, olivine and pyroxene, are transformed into three main serpentine phases: lizardite, antigorite and chrysotile. Chrysotile is the habit that grows as fibres — and that fibrous form is what industry historically marketed as "white asbestos."

The regional geology

The four quarries all sit within the geological context of the so-called Rechnitzer Fenster. In tectonics, a "window" (Fenster) is an area where erosion has exposed deeper rock units that are elsewhere covered by younger layers. The Rechnitzer Fenster exposes parts of the so-called Penninic units — remnants of a former oceanic basin that was closed roughly 140 million years ago during the formation of the Alps. Ultramafic rocks and their hydrated derivatives — serpentinites — are typical components of such oceanic-basin relics.

Why the asbestos content varies

The asbestos content of serpentinite is not uniform. It depends on how completely the hydration proceeded, the temperatures and pressures under which it occurred, and whether subsequent tectonic deformation produced additional shear zones where asbestos fibres preferentially grew. This is why samples from the same quarry can yield 5 per cent asbestos in one measurement and 50 per cent in the next. Amphibole asbestos phases such as actinolite and tremolite form secondarily in contact zones — their distribution is even more heterogeneous.

What this means in practice

That asbestos-containing rock exists in this region is geologically expected. That it was extracted and sold as gravel, chippings and construction sand for three decades is a political-regulatory question — not a geological surprise.

30 years of prehistory: what the authorities knew

The following chronology reconstructs when which knowledge became public. It is based primarily on the Falter investigation (Klatzer/Winterer, Falter 13/2026), supplemented with publicly available regulatory and court documents where available.

• 1990 — Austria's asbestos ban. From this year, placing asbestos-containing products on the market and using them is prohibited, with an exception clause for naturally-occurring asbestos phases below the 0.1 per cent threshold.
• 1994 — The ZFE Graz research institute carries out an asbestos measurement at the Bernstein quarry. The results already show elevated levels. (Source: Falter 13/2026)
• 1995 — A counter-expert report by the Austrian Dust Control Committee (ÖSBS) relativises the Bernstein findings. The quarries remain in operation.
• 1999 — The Austrian Administrative Court (Verwaltungsgerichtshof, VwGH) rules in connection with an asphalt mixing plant at Tauchental that the asbestos contained in serpentinite gravel does not count as an "intentionally introduced substance" and therefore does not fall under the 1990 ban. This ruling becomes the legal foundation for continuing the extraction.
• 2006 — A geological study documents asbestos contents in rocks of the Rechnitzer Fenster. It reaches the authorities but produces no follow-up action. (Source: Falter 13/2026)
• 2008 — The federal minister responsible at the time issues a product recall for 25-kilogram bags of winter road grit from the Rumpersdorf quarry. The recall is narrow and targeted; extraction overall continues.
• 2011 — In the environmental impact assessment (UVP) procedure for the Pilgersdorf quarry, the operator appeals against the conditions. The procedure drags on.
• Summer 2025 — Bergerhoff measurements at the Rumpersdorf quarry show elevated values. The results reach the authorities.
• 1 January 2026 — Austria's occupational exposure limit for airborne asbestos fibres drops from 100,000 to 10,000 fibres/m³.
• 2 January 2026 — The four quarries Pilgersdorf, Bernstein, Rumpersdorf and Badersdorf are closed by order of the authorities.
• 23 January 2026 — Greenpeace Austria starts its first independent sampling campaign.
• 19 February 2026 — The state task force publishes first air measurements at Oberwart Hospital and Town Hall.
• March 2026 — Greenpeace extends sampling to Lower Austria, Styria and Hungary; Falter publishes the 30-year prehistory in issue 13/2026.
• 15 April 2026 — ORF Burgenland reports on a new find in Ollersdorf. Ungiftig sends an open letter to Prof. Hutter regarding the task force's self-disposal recommendation.

This list remains incomplete while the investigation continues. We will extend it as new documents become public.

Am I affected?

Whether you could be affected depends not primarily on where you live but on the origin of your gravel, chippings or rolled aggregate. The following questions help with an initial assessment.

1. Region and delivery chain

Was material sourced from southern Burgenland at any point in the last roughly 35 years? This obviously applies to municipalities and private individuals in Burgenland, Lower Austria and Styria — but because of the long distribution chains, also to recipients further afield. Ask your municipality, building contractor, supplier or — for older deliveries — check the purchase contract for origin and delivery year.

2. Period and use

Material from these quarries was sold in large volumes from 1990 onwards, with peaks in the 2000s and 2010s. Typical uses: driveways, garden paths, winter road grit, railway ballast, playgrounds, school paths, car parks, landscaping.

3. Visual cues

Serpentinite is often greenish or greenish-white mottled, sometimes with a silky sheen. Fresh fracture surfaces can look fibrous and splintery. Important: visual identification is not reliable. Asbestos-free serpentinite also exists, and other dark-green rocks such as gabbro or basalt are hard to distinguish by eye alone. The eye alone is not enough — a defensible statement requires laboratory analysis.

4. Location and exposure

The more sensitive the use (children, schools, hospitals) and the more intense the mechanical wear (traffic, wind, dry conditions), the more urgent the clarification. A rarely-used garden path that can be covered is not the same as a kindergarten playground.

If you answer multiple points with yes, a professional inspection and sampling is the sensible path. For questions, we are available for a free consultation.

What to do if you suspect contamination

The following guidance applies from the moment you suspect your gravel might come from one of the four affected quarries — regardless of whether the suspicion is confirmed.

What to do

• Photograph and document. Photos of the area, wide and close-up. Record date, location, approximate area and — if known — supplier and delivery year.
• Inform the relevant body. For public areas (playgrounds, school routes, municipal roads) contact the municipality or school operator. For hospitals or care facilities, contact the operator. For private property, where applicable, contact the seller or landlord who arranged the delivery.
• Limit use of the area until the situation is clarified. Especially for sensitive uses and during dry, windy conditions.
• Bring in professionals. A structured material sample and, where appropriate, an indoor-air measurement according to VDI 3492 belong in the hands of an accredited laboratory or a qualified expert assessor.

What not to do under any circumstances

• Do not crush. No hammering, breaking or sieving.
• Do not dry-sweep or use a leaf blower. Both aerosolise fibres over large areas.
• Do not vacuum with household vacuum cleaners. Household filters do not retain inhalable fibres.
• Do not take samples yourself. Every manual sampling attempt risks releasing fibres.
• Do not track material into the house. No material on shoes from the driveway into interior rooms.

How we test for asbestos

When testing is required, we work with an ISO/IEC 17025-accredited partner laboratory using established methods.

Material sample — asbestos identification and quantification

A material sample is analysed in the laboratory. Depending on the matrix and the question at hand, polarised light microscopy (PLM) and scanning electron microscopy with energy-dispersive X-ray analysis (SEM/EDS) are used — the latter performed to VDI 3866 and indispensable for a reliable distinction between chrysotile and amphibole asbestos phases. Typical turnaround: five to ten working days from sample receipt.

Indoor-air measurement — fibre concentration in breathing air

When the question is not "is asbestos in the material" but "are we inhaling fibres," we carry out an indoor-air measurement according to VDI 3492. The method: air is drawn over a defined period through a gold-coated filter, which is then analysed under SEM for inhalable asbestos fibres. The result is a fibre concentration in fibres per cubic metre of air, directly comparable to the values discussed in the public measurements.

What differentiates us

Dr. Kasia Liszewska spent five years in the clean-room laboratory at ETH Zürich conducting high-precision silicate analytics — down to isotope ratios in meteorite samples (OSIRIS-REx, NASA). Serpentinite and its asbestos-bearing phases sit squarely within that research field. For our clients, this means we understand the mineralogy as science, not just as a lab-report protocol. In ambiguous cases we can contextualise the analysis ourselves, not simply pass the result along.

Frequently asked questions

Sources & further information

• Falter 13/2026 — Jürgen Klatzer & Matthias Winterer, "Das verseuchte Bundesland", 24 March 2026. falter.at/zeitung/20260324/das-verseuchte-bundesland
• Greenpeace Austria — ongoing sampling campaign since January 2026. Current catalogue of finds at greenpeace.at/news/asbest-ostoesterreich
• ORF Burgenland — ongoing local reporting on the task force, closures and clean-ups; most recently: "Asbest: Spielplatz in Ollersdorf gesperrt", 15 April 2026
• BVZ (Burgenländische Volkszeitung) — regional reporting, particularly on Oberwart and Oberpullendorf districts
• State task force Burgenland — air measurement results from 19 February 2026 (Oberwart Hospital and Town Hall)
• Austrian Administrative Court decision, 1999 (VwGH) — ruling on the Tauchental asphalt mixing plant and the legal classification of naturally-occurring asbestos
• Federal minister recall order, 2008 — 25-kg bags of winter road grit from the Rumpersdorf quarry
• ZFE Graz (1994) and ÖSBS counter-report (1995) — early asbestos measurements at the Bernstein quarry
• Dr. Maximilian Mandl, letter to OA Assoz.-Prof. Priv.-Doz. DI Dr. med. Hans-Peter Hutter, MedUni Vienna, 15 April 2026 — full text in the section above

For questions about sources, specific measurement results or how to contextualise individual reports: servus@ungiftig.at