PFAS in Tallinn's tap water: under 4 ng/L, none of the four main PFAS detected
Last PFAS check: · Source: Terviseamet
PFAS in drinking water
None of the 4 most harmful PFAS detected
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.
checked on 17 November 2025
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Perfluoroheksaanhape (PFHxA) | 0.003 µg/L |
| Perfluorobutaanhape (PFBA) | <0.001 µg/L |
| Perfluorobutaansulfoonhape (PFBS) | <0.001 µg/L |
| Perfluorodekaanhape (PFDA) | <0.001 µg/L |
| Perfluorodekaansulfoonhape (PFDS) | <0.001 µg/L |
| Perfluorododekaanhape (PFDoDA) | <0.001 µg/L |
| perfluorododekaansulfoonhape (PFDoDS) | <0.001 µg/L |
| Perfluoroheksaansulfoonhape (PFHxS) | <0.001 µg/L |
| Perfluoroheptaanhape (PFHpA) | <0.001 µg/L |
| Perfluoroheptaansulfoonhape (PFHpS) | <0.001 µg/L |
| Perfluorononaanhape (PFNA) | <0.001 µg/L |
| perfluorononaansulfoonhape (PFNS) | <0.001 µg/L |
| Perfluorooktaanhape (PFOA) | <0.001 µg/L |
| perfluorooktaansulfoonhape (PFOS) | <0.001 µg/L |
| Perfluoropentaanhape (PFPeA) | <0.001 µg/L |
| Perfluoropentaansulfoonhape (PFPS) | <0.001 µg/L |
| perfluorotridekaanhape (PFTrDA) | <0.001 µg/L |
| perfluorotridekaansulfoonhape (PFTrDS) | <0.001 µg/L |
| Perfluoroundekaanhape (PFUnDA) | <0.001 µg/L |
| perfluoroundekaansulfoonhape (PFUnDS) | <0.001 µg/L |
None found. The lab sees nothing below 4 ng/L, so our 0.5 ng/L benchmark cannot be checked.
Water report for Tallinn
Get new PFAS results for Tallinn, with a short explanation. At most one update a week, only when there's something new.
- EU legal limit
- 3 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 17 November 2025
- Water supplier
- AS TALLINNA VESI
In Tallinn, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 17 November 2025. 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: 3 ng/L (0.003 µg/L), below the EU legal limit (100 ng/L). Source: Terviseamet, veeterviseohutuse infosüsteem (VTI) avaandmed, veevargi_veeproovid_2026.xml.
Details and sources
What the latest check found
At the latest check, the water was within every limit tested.
See all 15 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Tiskre piirkond · 19 November 2025 | <0.004 µg/L | ≤ 0.004 µg/L | within the limit |
| Sum of 20 PFAS · Tiskre piirkond · 19 November 2025 | <0.001 µg/L | ≤ 0.1 µg/L | within the limit |
| Nitrate | 2.1 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | 0.026 mg/L | ≤ 0.5 mg/L | within the limit |
| Uranium | 0.4 µg/L | ≤ 30 µg/L | within the limit |
| Escherichia coli | 0 n/(100mL) | ≤ 0 n/(100mL) | within the limit |
| Enterococci | 0 n/(100mL) | ≤ 0 n/(100mL) | within the limit |
| Coliform bacteria | 0 n/(100mL) | ≤ 0 n/(100mL) | within the limit |
| Colony count at 22 °C | 3 n/mL | no limit | for reference |
| pH | 7.9 pH | 6.5–9.5 pH | within the limit |
| Electrical conductivity | 514 µS/cm | ≤ 2,500 µS/cm | within the limit |
| Iron | 20 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.1 NTU | no limit | for reference |
| Manganese | 8 µg/L | ≤ 50 µg/L | within the limit |
| Ammonium | 0.023 mg/L | ≤ 0.5 mg/L | within the limit |
Frequently asked questions
Is tap water in Tallinn safe to drink?
Yes. At the check on 29 July 2026, the tap water in Tallinn was within every limit tested. “vastab nõuetele”
How high are PFAS levels in Tallinn's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 3 ng/L. The EU limit is 100 ng/L, so this water is at 3 % of the limit. (below the EU limit)
Does the water in Tallinn 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.
Which PFAS limits apply in Estonia?
Estonia transposes the EU Drinking Water Directive in regulation no. 61 of the Minister of Social Affairs (sotsiaalministri määrus nr 61): "PFASide summa" (sum of 20 PFAS) at most 0.10 µg/l, that is 100 ng/L. There is no national PFAS-4 limit; the health reference is EFSA's 4 ng/L. This site's 0.5 ng/L benchmark is stricter than both.
How hard is the water in Tallinn?
No hardness value is available for Tallinn in this source.
Where does this data come from?
All values come from official publications: Terviseamet, veeterviseohutuse infosüsteem (VTI) avaandmed, veevargi_veeproovid_2026.xml. Retrieved on 19 September 2026.
Same water network
Same distribution network as Tallinn, so in principle the same water.
Nearby cities
The closest to Tallinn on this site.
Data source
- Terviseamet, veeterviseohutuse infosüsteem (VTI) avaandmed, veevargi_veeproovid_2026.xml
- https://vtiav.sm.ee/index.php/?active_tab_id=A
- License
- Avaliku teabe seadus § 31 (avaandmed, litsentsi ei ole avaldatud)
- Retrieved
- 19 September 2026
- Supply networks
- Tallinna pinnavee piirkond ja Harku, Nõmme-Laagri puurkaevude piirkond, Pirita piirkond, Tehnovõrkude Ehituse OÜ veevärk (Kakumäe piirkond), Tiskre piirkond, Merivälja piirkond, Mähe, Lepiku, Udeselja vee-ettevõtluspiirkond, Tallinna Vana-Pääsküla ÜVK piirkond, AS Silikaat joogivee süsteem (Silikaltsiidi 12/1, Männiku tee 123), Arkaadia Viljandi mnt veevärk, Väo asula, OÜ Sompa ja Lepiku Pirita-Kloostrimetsa veevõrk, Kloostrimetsa tee 52, Aiandusühistu Soolahe veevärk, BLRT GRUPP AS (AS Elme) veevärk, Leiva 3 veevärk, Mõigu tootmisbaasi veevärk, Männiku Auto OÜ veevärk, OÜ Orto Kinnisvara (Suur-Sõjamäe 30) veevärk, Suur-Sõjamäe 14 veevärk, Väo karjääri territoorium (Peterburi tee 94B)
21 veevärki, mille proovid on VTI registris. Lehe väärtused pärinevad veevärgist „Merivälja piirkond“, kus on PFAS-tulemused (analüüsitud veevärkidest suurima 20 PFASi summaga). PFAS-väärtused on avaldatud ilma „<“-märgita ja loetud labori määramispiiridena, mitte mõõtmistulemustena.
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.