PFAS in Belmont-d'Azergues's tap water: 33 ng/L, 66x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
66× above our health benchmark
0.5 ng/L is our benchmark, not an official limit. Same EFSA method as Sweden, Denmark and the Netherlands, but stricter. It's a yearly average, compared here with the latest check.
Sample taken in Anse, on the same distribution network as Belmont-d'Azergues (VAL D'AZERGUES). The health authority samples one tap per network; a network carries the same treated water everywhere.
More about this result
The US also limits PFOA and PFOS to 4 ng/L each, per substance.
One of these four, PFOA, is classified as causing cancer in humans by the WHO's cancer research agency (IARC).
More PFAS than in 100% of the cities we track
checked on 1 June 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide sulfonique de perfluorooctane (PFOS) | 0.018 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.007 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.007 µg/L |
| Acide perfluorobutanoïque (PFBA) | 0.006 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.005 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | 0.004 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | 0.003 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | 0.002 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 52 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 1 June 2026
- Water supplier
- S.I.E. VAL D'AZERGUES
In Belmont-d'Azergues, the 4 most closely watched PFAS (PFAS-4) add up to 33 ng/L (0.033 µg/L) at the latest PFAS check on 1 June 2026. That's 66 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 52 ng/L (0.052 µg/L), below the EU legal limit (100 ng/L). Sampled in Anse, on the same network. 7 checks since 13 October 2025: PFAS-4 from 29 ng/L to 44 ng/L, averaging 34.29 ng/L over 12 months. No clear trend. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Belmont-d'Azergues
17 PFAS checks since 25 April 2023, from the published measurements. Samples from 3 communes on the same network: it's the same water, so each one applies to Belmont-d'Azergues.
“Calculated”: PFAS-4 worked out from the four substances in the same sample. The chart, averages and trends use lab-published sums only.
| Date | PFAS-4 | Sum of 20 PFAS | Sampled at |
|---|---|---|---|
| 33 ng/L | 52 ng/L | Anse | |
| 32 ng/L | 62 ng/L | Anse | |
| 29 ng/L | 57 ng/L | Dommartin | |
| 35 ng/L | 70 ng/L | Anse | |
| 44 ng/L | 79 ng/L | Anse | |
| 34 ng/L | 65 ng/L | Fleurieux-sur-l'Arbresle | |
| 33 ng/L | 67 ng/L | Anse | |
| 33 ng/L · calculated | 67 ng/L | Anse | |
| 28 ng/L · calculated | 59 ng/L | Anse | |
| 41 ng/L · calculated | 79 ng/L | Anse | |
| 40 ng/L · calculated | 79 ng/L | Anse | |
| 42 ng/L · calculated | 80 ng/L | Anse |
Show the 5 earlier checks (back to 25 April 2023)
| 31.5 ng/L · calculated | 61.1 ng/L | Anse | |
| 36.1 ng/L · calculated | 72.8 ng/L | Anse | |
| 37.7 ng/L · calculated | 67.7 ng/L | Anse | |
| 25.1 ng/L · calculated | 51.3 ng/L | Anse | |
| 31.3 ng/L · calculated | 54.4 ng/L | Anse |
Calculated values: “<” is an upper bound from published thresholds, “≥” a lower bound, “–” means no published sum or complete measurement. How to read a PFAS result
What the latest check found
At the latest check, the water was within every limit tested.
See all 14 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 14.2 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Cadmium | <1 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <5 µg/L | ≤ 50 µg/L | within the limit |
| Escherichia coli | <1 n/(100mL) | ≤ 0 mL) | within the limit |
| Enterococci | <1 n/(100mL) | ≤ 0 mL) | within the limit |
| Coliform bacteria | <1 n/(100mL) | ≤ 0 mL) | within the limit |
| pH | 7.4 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 24.84 °f | no limit | for reference |
| Electrical conductivity | 570 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 34.1 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 33.4 mg/L | ≤ 250 mg/L | within the limit |
| Iron | <10 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.14 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Belmont-d'Azergues safe to drink?
Yes. At the check on 1 June 2026, the tap water in Belmont-d'Azergues was within every limit tested. “Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.”
How high are PFAS levels in Belmont-d'Azergues's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 52 ng/L. The EU limit is 100 ng/L, so this water is at 52 % of the limit. (below the EU limit)
Does the water in Belmont-d'Azergues also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 33 ng/L. That is 8.3 times Sweden's legal limit of 4 ng/L, in force since 2026. Germany will set a similar one in 2028. The water still passes the current EU legal limit (100 ng/L for the total of 20 PFAS).
Are PFAS levels rising in Belmont-d'Azergues's tap water?
No clear trend. Since 25 April 2023, 7 checks have been published; on the main network the PFAS-4 sum ranged between 29 ng/L and 44 ng/L (7 quantified values), at times below the detection limit. pfasnearme only reports a trend from a change of at least 25 % and 1 ng/L. These history statistics use laboratory-published sums only.
How hard is the water in Belmont-d'Azergues?
The water hardness in Belmont-d'Azergues is 24.8 °f (medium). This mainly matters for household appliances and detergent dosing, not for health.
Where does this data come from?
All values come from official publications: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM). Retrieved on 21 September 2026.
Same water network
Same distribution network as Belmont-d'Azergues, so in principle the same water.
Nearby communes
The closest to Belmont-d'Azergues on this site.
Data source
- Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM)
- https://hubeau.eaufrance.fr/api/v1/qualite_eau_potable/resultats_dis?code_commune=69020
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- VAL D'AZERGUES
Water report for Belmont-d'Azergues
Get new PFAS results for Belmont-d'Azergues, with a short explanation. At most one update a week, only when there's something new.
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.