PFAS in Marseille's tap water: under 4 ng/L, none of the four main PFAS detected

Last PFAS check: · Source: Hub'eau

PFAS in drinking water

None of the 4 most harmful PFAS detected

Amount found in the water < 4 ng/L the 4 most harmful PFAS (PFAS-4) · the lab's detection limit 20 PFAS looked for, 2 ng/L found in total
Our health benchmark 0.5 ng/L

The lab sees nothing below 4 ng/L, 8 times our benchmark of 0.5 ng/L. Water above our benchmark would pass this check unnoticed.

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.

More about this result

The US also limits PFOA and PFOS to 4 ng/L each, per substance.

The lab detects each of the four substances from 1 ng/L upward. None reached that limit, so their total is below 4 ng/L rather than zero.

20 PFAS (see each substance)
PFAS substance Value
Acide perfluoropentanoïque (PFPEA) 0.002 µg/L
Acide perfluoro-decanoïque (PFDA) <0,001 µg/L
Acide perfluorododécanoique (PFDoDA) <0,001 µg/L
Acide perfluoro-octanoïque (PFOA) <0,001 µg/L
Perfluorohexane sulfonate (PFHXS) <0,001 µg/L
Acide perfluorobutanoïque (PFBA) <0,002 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,001 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,001 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,005 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,001 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,001 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,002 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,001 µg/L
Acide perfluorohexanoïque (PFHXA) <0,002 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,001 µg/L
Acide perfluorononane sulfonique (PFNS) <0,002 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,002 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,001 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,001 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,001 µg/L

None found. The lab sees nothing below 4 ng/L, so our 0.5 ng/L benchmark cannot be checked.

EU legal limit
2 ng/L sum of 20 PFAS, below the 100 ng/L limit
Last PFAS test
15 July 2026
Water supplier
SOCIETE EAU DE MARSEILLE METROPOLE

In Marseille, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 15 July 2026. The total is below 4 ng/L, the sum of the detection limits and 8 times our 0.5 ng/L benchmark. Sum of 20 PFAS: 2 ng/L (0.002 µg/L), below the EU legal limit (100 ng/L). 21 checks since 12 January 2026: PFAS-4 up to 2 ng/L, sometimes below the detection limit, averaging at least 0.11 ng/L over 12 months (non-detects as 0). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: SOCIETE EAU DE MARSEILLE METROPOLE Latest water check: 22 July 2026 Data updated on

PFAS over time in Marseille

86 PFAS checks since 5 November 2024, from the published measurements. Samples from 3 communes on the same network: it's the same water, so each one applies to Marseille. Samples come from 16 distribution networks. The trend refers to the network “GRAND PORT MARITIME MARSEILLE EST SEM 11”.

“Calculated”: PFAS-4 worked out from the four substances in the same sample. The chart, averages and trends use lab-published sums only.

0.5 ng/L2 ng/L012 January 202615 July 2026
PFAS-4 sum per check in ng/L. Dashed line: pfasnearme's 0.5 ng/L benchmark. Hollow dots: below the detection limit.
DatePFAS-4Sum of 20 PFASSampled atNetwork
< 4 ng/L2 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L1 ng/LMarseilleMARSEILLE ST BARNABE
< 4 ng/L1 ng/LSeptèmes-les-VallonsMARSEILLE VALLON D'OL
< 4 ng/L5 ng/LMarseilleGRAND PORT MARITIME MARSEILLE SEM 13
< 4 ng/L< 29 ng/LMarseilleMARSEILLE VALLON D'OL
< 4 ng/L1 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L< 29 ng/LMarseilleMARSEILLE VALLON D'OL
< 4 ng/L< 29 ng/LMarseilleMARSEILLE ST BARNABE
< 4 ng/L1 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L< 29 ng/LMarseilleGRAND PORT MARITIME MARSEILLE SEM 10 N
< 4 ng/L< 29 ng/LMarseilleGRAND PORT MARITIME MARSEILLE EST SEM 11
< 4 ng/L< 29 ng/LMarseilleMARSEILLE VALLON D'OL
Show the 74 earlier checks (back to 5 November 2024)
< 4 ng/L< 29 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
2 ng/L4 ng/LMarseilleMARSEILLE ST BARNABE
< 4 ng/L1 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
1 ng/L4 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L< 29 ng/LAllauchMARSEILLE VALLON D'OL
< 4 ng/L2 ng/LMarseilleGRAND PORT MARITIME MARSEILLE SEM 10 SUD
< 4 ng/L2 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L< 29 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L10 ng/LMarseilleMARSEILLE ST BARNABE
< 4 ng/L · calculated< 28 ng/LSeptèmes-les-VallonsMARSEILLE VALLON D'OL
< 4 ng/L · calculated< 28 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated1 ng/LMarseilleGRAND PORT MARITIME MARSEILLE SEM 10 SUD
< 4 ng/L · calculated1 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated< 100 ng/LMarseilleMARSEILLE VALLON D'OL
< 4 ng/L · calculated2 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated4 ng/LMarseilleMARSEILLE ST BARNABE
< 4 ng/L · calculated2 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
1 ng/L – < 4 ng/L · calculated2 ng/LMarseilleMARSEILLE ST BARNABE
< 4 ng/L · calculated5 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated4 ng/LMarseilleMARSEILLE VALLON D'OL
< 4 ng/L · calculated< 100 ng/LMarseilleGRAND PORT MARITIME MARSEILLE EST SEM 9
< 4 ng/L · calculated< 100 ng/LMarseilleGRAND PORT MARITIME MARSEILLE EST SEM 5
< 4 ng/L · calculated1 ng/LSeptèmes-les-VallonsMARSEILLE VALLON D'OL
< 4 ng/L · calculated< 100 ng/LMarseilleMARSEILLE VALLON D'OL
< 4 ng/L · calculated1 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated1 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated1 ng/LSeptèmes-les-VallonsMARSEILLE VALLON D'OL
< 4 ng/L · calculated3 ng/LMarseilleMARSEILLE ST BARNABE
< 4 ng/L · calculated1 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated2 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated< 100 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated1 ng/LMarseilleGRAND PORT MARITIME MARSEILLE SEM 13
< 4 ng/L · calculated2 ng/LMarseilleGRAND PORT MARITIME MARSEILLE ST CAS.N
< 4 ng/L · calculated2 ng/LMarseilleGRAND PORT MARITIME MARSEILLE EST SEM 11
< 4 ng/L · calculated< 100 ng/LMarseilleMARSEILLE VALLON D'OL
< 4 ng/L · calculated6 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated7 ng/LMarseilleMARSEILLE VALLON D'OL
< 4 ng/L · calculated2 ng/LMarseilleMARSEILLE ST BARNABE
< 4 ng/L · calculated18 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated< 100 ng/LMarseilleMARSEILLE VALLON D'OL
< 4 ng/L · calculated2 ng/LAllauchMARSEILLE VALLON D'OL
< 4 ng/L · calculated2 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated3 ng/LMarseilleGRAND PORT MARITIME MARSEILLE EST SEM 8
< 4 ng/L · calculated2 ng/LMarseilleGRAND PORT MARITIME MARSEILLE EST SEM 8B
< 4 ng/L · calculated4 ng/LMarseilleGRAND PORT MARITIME MARSEILLE EST SEM 4
< 4 ng/L · calculated4 ng/LMarseilleGRAND PORT MARITIME MARSEILLE ST CAS.SUD
< 4 ng/L · calculated2 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated2 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated5 ng/LMarseilleMARSEILLE ST BARNABE
< 4 ng/L · calculated3 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated1 ng/LMarseilleMARSEILLE VALLON D'OL
< 4 ng/L · calculated< 100 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated< 1 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated6 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated1 ng/LMarseilleGRAND PORT MARITIME MARSEILLE EST SEM 2
< 4 ng/L · calculated5 ng/LMarseilleGRAND PORT MARITIME MARSEILLE EST SEM 3
< 4 ng/L · calculated< 100 ng/LMarseilleGRAND PORT MARITIME MARSEILLE SEM 10 N
< 4 ng/L · calculated1 ng/LSeptèmes-les-VallonsMARSEILLE VALLON D'OL
< 4 ng/L · calculated< 1 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated< 1 ng/LAllauchMARSEILLE VALLON D'OL
< 4 ng/L · calculated< 1 ng/LMarseilleMARSEILLE ST BARNABE
< 4 ng/L · calculated< 1 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated< 1 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated< 1 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated< 1 ng/LMarseilleMARSEILLE VALLON D'OL
< 4 ng/L · calculated1 ng/LMarseilleMARSEILLE VALLON D'OL
< 4 ng/L · calculated1 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated8 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated2 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated< 1 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated< 1 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated1 ng/LMarseilleMARSEILLE VALLON D'OL
< 4 ng/L · calculated< 1 ng/LMarseilleMARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11 +12
< 4 ng/L · calculated< 1 ng/LAllauchMARSEILLE VALLON D'OL

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.

Microbiology: within the limit Chemistry: within the limit
See all 21 test results
What was tested Value Limit Status
Nitrate 1.4 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.5 mg/L within the limit
Lead <2 µg/L ≤ 10 µg/L within the limit
Copper 0.025 mg/L ≤ 2 mg/L within the limit
Nickel <5 µg/L ≤ 20 µg/L within the limit
Arsenic <2 µg/L ≤ 10 µg/L within the limit
Cadmium <1 µg/L ≤ 5 µg/L within the limit
Chromium <5 µg/L ≤ 50 µg/L within the limit
Uranium <10 µg/L ≤ 30 µg/L within the limit
Fluoride 0.09 mg/L ≤ 1.5 mg/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 7.9 unité pH 6.5–9 unité pH within the limit
Water hardness 22.26 °f no limit for reference
Electrical conductivity 467 µS/cm 200–1,100 µS/cm within the limit
Chloride 16.4 mg/L ≤ 250 mg/L within the limit
Sulphate 98 mg/L ≤ 250 mg/L within the limit
Sodium 10.4 mg/L ≤ 200 mg/L within the limit
Iron 86 µg/L ≤ 200 µg/L within the limit
Turbidity 0.33 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Marseille safe to drink?

Yes. At the check on 22 July 2026, the tap water in Marseille was within every limit tested. “L’eau d’alimentation est conforme aux limites de qualité et non conforme aux références de qualité pour le paramètre température.”

How high are PFAS levels in Marseille's drinking water?

The total of 20 PFAS ("forever chemicals") was last measured at 2 ng/L. The EU limit is 100 ng/L, so this water is at 2 % of the limit. (below the EU limit)

Does the water in Marseille also meet the strictest limits in Europe?

As far as this check can tell, yes. None of the four compounds was quantified, so their total is below 4 ng/L, the sum of the laboratory's detection limits, and under Sweden's legal limit of 4 ng/L in force since 2026.

Are PFAS levels rising in Marseille's tap water?

Too few quantified checks to say (1 since 5 November 2024). pfasnearme adds each new publication weekly; a trend needs at least three quantified values. These history statistics use laboratory-published sums only.

How hard is the water in Marseille?

The water hardness in Marseille is 22.3 °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 28 September 2026.

Same water network

Same distribution network as Marseille, so in principle the same water.

Nearby communes

The closest to Marseille 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=13055
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
28 September 2026
Supply networks
MARSEILLE VALLON D'OL, MARSEILLE ST BARNABE, MARSEILLE SAINTE-MARTHE, GRAND PORT MARITIME MARSEILLE EST SEM 11, GRAND PORT MARITIME MARSEILLE EST SEM 2, GRAND PORT MARITIME MARSEILLE EST SEM 3, GRAND PORT MARITIME MARSEILLE EST SEM 4, GRAND PORT MARITIME MARSEILLE EST SEM 5, GRAND PORT MARITIME MARSEILLE ST CAS.SUD, GRAND PORT MARITIME MARSEILLE ST CAS.N , GRAND PORT MARITIME MARSEILLE EST SEM 8, GRAND PORT MARITIME MARSEILLE EST SEM 8B, GRAND PORT MARITIME MARSEILLE EST SEM 9, GRAND PORT MARITIME MARSEILLE SEM 10 SUD, GRAND PORT MARITIME MARSEILLE SEM 10 N, GRAND PORT MARITIME MARSEILLE SEM 13

This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.