PFAS in tap water in the province of Luxembourg
Tap water in the Belgian province of Luxembourg meets the legal PFAS standard everywhere. In almost all areas the four PFAS of the target can't even be measured, but in two areas the latest result is above the target. Here you can read what that means and what you can do yourself.
See the figuresShop ZeroWaterHow much PFAS is in tap water in the province of Luxembourg?
Wallonia had PFAS measured at the kitchen tap in every distribution zone from September 2023 to December 2025. In the province of Luxembourg that means 948 results from 201 zones in 44 municipalities. For each zone we look at the latest result.
Highest recent value in one zone (Saint-Hubert, 24.0 ng/l) compared with the target
- All 201 zones meet the legal standard of 100 ng/l for 20 PFAS. The highest value was 29.0 ng/l.
- In 188 of the 201 zones, the four PFAS of the target were below the detection limit at the latest measurement.
- In 2 zones the latest result is above the target of 4 ng/l: part of Saint-Hubert (24.0 ng/l) and part of Aubange (7.8 ng/l). Water suppliers have until 2028 to reach the target.
Why is it so low here, and why those two areas?
The province is green and rural, with little heavy industry. Many municipalities have their own water service with local springs and wells. Around Bastogne, Marche-en-Famenne and Houffalize, part of the water comes from the Nisramont reservoir on the Ourthe. There too, the four PFAS were not measurable.
Saint-Hubert: in the zone Saint-Hubert Sud 1, Lorcy and part of Arville, the latest result (31 March 2025) was 24.0 ng/l, mostly PFOS. Earlier measurements there were between < 1 and 6 ng/l. The other zones in Saint-Hubert are at 2 ng/l or lower. Aubange: in one SWDE zone the latest result (29 August 2025) was 7.8 ng/l. The other zones in Aubange are below 1 ng/l. The report does not give a cause.
Values can change over time. In Arlon and Attert, 16 and 14 ng/l were measured in one zone each in 2023. Since 2024, the four PFAS there have not been measurable. Want to know the latest figure for your address? Ask your water supplier.
All 44 municipalities at a glance
| Municipality | 4 PFAS (ng/l)* | vs. target | Water supplier |
|---|---|---|---|
| Saint-Hubert | < 1 – 24.0 | Above the target in one zone | Municipal water service |
| Aubange | < 1 – 7.8 | Above the target in one zone | SWDE |
| Attert | < 1 – 3.0 | Below the target | Municipal water service |
| Martelange | < 1 – 3.0 | Below the target | SWDE |
| Nassogne | < 1 – 2.5 | Below the target | Municipal water service |
| Paliseul | < 1 – 1.1 | Below the target | SWDE |
| Arlon | < 1 | Not measurable | SWDE |
| Bastogne | < 1 | Not measurable | SWDE |
| Bertogne | < 1 | Not measurable | SWDE |
| Bertrix | < 1 | Not measurable | SWDE |
| Bouillon | < 1 | Not measurable | Municipal water service, SWDE |
| Chiny | < 1 | Not measurable | Municipal water service |
| Daverdisse | < 1 | Not measurable | SWDE |
| Durbuy | < 1 | Not measurable | CIESAC, SWDE |
| Érezée | < 1 | Not measurable | Municipal water service |
| Étalle | < 1 | Not measurable | Municipal water service |
| Fauvillers | < 1 | Not measurable | SWDE |
| Florenville | < 1 | Not measurable | SWDE |
| Gouvy | < 1 | Not measurable | Municipal water service |
| Habay | < 1 | Not measurable | Municipal water service |
| Herbeumont | < 1 | Not measurable | SWDE |
| Hotton | < 1 | Not measurable | AIEC |
| Houffalize | < 1 | Not measurable | SWDE |
| La Roche-en-Ardenne | < 1 | Not measurable | SWDE |
| Léglise | < 1 | Not measurable | IEG, Municipal water service |
| Libin | < 1 | Not measurable | Municipal water service, SWDE |
| Libramont-Chevigny | < 1 | Not measurable | Municipal water service, SWDE |
| Manhay | < 1 | Not measurable | Municipal water service, SWDE |
| Marche-en-Famenne | < 1 | Not measurable | SWDE |
| Meix-devant-Virton | < 1 | Not measurable | Municipal water service |
| Messancy | < 1 | Not measurable | SWDE |
| Musson | < 1 | Not measurable | Municipal water service |
| Neufchâteau | < 1 | Not measurable | SWDE |
| Rendeux | < 1 | Not measurable | SWDE |
| Rouvroy | < 1 | Not measurable | Municipal water service |
| Saint-Léger | < 1 | Not measurable | Municipal water service |
| Sainte-Ode | < 1 | Not measurable | SWDE |
| Tellin | < 1 | Not measurable | Municipal water service |
| Tenneville | < 1 | Not measurable | SWDE, Municipal water service |
| Tintigny | < 1 | Not measurable | Municipal water service |
| Vaux-sur-Sûre | < 1 | Not measurable | SWDE |
| Vielsalm | < 1 | Not measurable | SWDE |
| Virton | < 1 | Not measurable | SWDE, Municipal water service |
| Wellin | < 1 | Not measurable | SWDE |
* Sum of the four PFAS in the target (PFOA, PFOS, PFNA and PFHxS), latest result per distribution zone. If a municipality has several zones, we show the range. < 1 means below the detection limit. Source: SPW Environnement (Wallonia), ‘Les PFAS dans les eaux de distribution en Wallonie – état des lieux’, September 2023 – December 2025, published March 2026.
What is PFAS?
PFAS is a large group of man-made substances. They are found in many things you use every day.
- Non-stick pans
- Rain jackets and outdoor clothing
- Food packaging
- Cosmetics and firefighting foam
Why is it called a ‘forever chemical’?
- PFAS hardly break down in nature.
- They enter rivers and groundwater through factories and products.
- That water is also used to make drinking water.
- They stay in your body for a long time.
Why PFAS deserves attention
EFSA, the European Food Safety Authority, says: part of the European population takes in more PFAS than is good for their health. This comes mainly from food, but also from drinking water.
It builds up
Your body clears PFAS only slowly. Small amounts add up over the years.
Effect on your immune system
According to EFSA, even small amounts of PFAS can make your immune system work less well.
The target is stricter than the law
Wallonia aims for 4 nanograms per litre for four PFAS. The law is less strict. Below you can read the difference.
Law and target: what's the difference?
There are two numbers you may read about. They don't measure the same thing, but this is how it works:
- The law: a maximum of 100 nanograms per litre for 20 PFAS combined. Wallonia has applied it since 20 February 2025, the whole EU since 12 January 2026.
- The target: 4 nanograms per litre for four PFAS combined (PFOA, PFOS, PFNA and PFHxS). Water suppliers in Wallonia aim to reach it by 12 January 2028. It is based on EFSA advice.
The target is stricter because it looks at the four PFAS that have been studied most and that EFSA considers most important for your health.
Good to know
- Tap water in Wallonia is safe to drink, says SWDE, the largest water supplier in the region.
- In the province of Luxembourg, many municipalities supply their own water. Your water bill shows who your supplier is.
- This page is about the Belgian province of Luxembourg, not the Grand Duchy of Luxembourg.
- Boiling does not remove PFAS from your water.
ZeroWater filters PFAS
Just keep drinking tap water. Want to take in less PFAS through your water? Then a certified filter is a simple extra step.
less PFAS in your water
This percentage applies to PFOA and PFOS, the two best-known and most studied PFAS. The ZeroWater 5-stage filter has been tested for these to the NSF/ANSI 53 standard and certified by the independent institute IAPMO. View the certificate.
Tested, certified
Not a promise, but an independently tested result. Tested with far more PFOA and PFOS than is found in Belgian tap water.
More than just PFAS
The filter is also certified for lead, chromium-6, mercury and chlorine. That makes your water taste purer too.
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Add to cartView product →Questions about PFAS in the province of Luxembourg
Can I still drink the tap water in the province of Luxembourg?
Yes. The tap water meets the legal PFAS standard in all 201 zones. SWDE says there is no reason to stop drinking tap water. Want to take in less PFOA and PFOS? Then you can filter your water as an extra step.
I live in Saint-Hubert or Aubange. What should I do?
Keep drinking your tap water: it meets the law. The target of 4 ng/l is a goal for 2028, not a limit. Only part of each municipality is above it. Ask your water supplier for the latest result for your address: in Saint-Hubert that is the municipal water service, in Aubange SWDE.
Does ZeroWater filter all PFAS?
The honest answer: ZeroWater is certified for PFOA and PFOS, the two best-known PFAS. There are thousands of types of PFAS. We have no certificate for the other types, so we don't make any promises about them.
Does the TDS meter show how much PFAS is in my water?
No. The meter measures dissolved solids such as limescale and metals. PFAS are present in such tiny amounts that a TDS meter can't measure them. The meter does help you see when your filter is used up: when it shows 006, replace your filter.
Does boiling or bottled water help?
Boiling does not remove PFAS from water. Bottled water creates a lot of plastic waste. A filter on your regular tap water is a simpler alternative.
Is this about the Grand Duchy of Luxembourg?
No. This page is about the province of Luxembourg in the south-east of Belgium, with towns like Arlon, Bastogne and Marche-en-Famenne. The Grand Duchy of Luxembourg is a separate country with its own drinking water rules.
Know what you drink
Just tap water, but with less PFOA and PFOS. For you and your family at home.
Shop ZeroWaterReplacement filters- SPW Environnement – PFAS in drinking water in Wallonia, state of play Sept 2023 – Dec 2025, March 2026 (in French). View PDF
- SPW Environnement – PFAS (in French). environnement.wallonie.be
- SWDE – Water and PFAS: what do I need to know? swde.be
- SWDE – Water quality (in French). swde.be
- SWDE – Nisramont reservoir, August 2026 (in French). swde.be
- EFSA – PFAS in food: EFSA assesses risks and sets tolerable intake (2020). efsa.europa.eu
- EU Drinking Water Directive 2020/2184. eur-lex.europa.eu
- ZeroWater Performance Data Sheet, IAPMO certification to NSF/ANSI 53 and 42. View PDF
ZeroWater is certified for the reduction of PFOA and PFOS. Results were achieved under laboratory conditions; actual results may vary.