Italy · Comune
Drinking water in Duno
One supply zone, published by ALFA S.r.l.. The values come from the publications of the Italian water suppliers (gestori), which D.Lgs. 18/2023 requires of them from 12 January 2026. Italian parametric values apply: trihalomethanes 30 instead of 50 µg/l, chromium 25 µg/l, uranium 30 instead of 10 µg/l; for hardness there is no maximum value, it is given in French degrees (°F).
Comune di Duno
ALFA S.r.l.These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 08/05/2025. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 9 mg/l | 50 mg/l | 18 % | Median · Comune di Duno · Source [3] |
| Lead | < 1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Maximum · Comune di Duno · Source [3] |
| Escherichia coli (E. coli) | 0 UFC/100ml | 0/100 ml | — | Maximum · Comune di Duno · Source [3] |
| Sulphate | 3 mg/l | 250 mg/l | 1 % | Median · Comune di Duno · Source [3] |
| Sodium | 2 mg/l | 200 mg/l | 1 % | Median · Comune di Duno · Source [3] |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Show all recorded parameters (57 — most recent value per parameter)
Microbiology (2)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 UFC/100ml | 0/100 ml | — | Maximum · Comune di Duno · Source [3] |
| Intestinal enterococci | 0 UFC/100ml | 0/100 ml | — | Maximum · Comune di Duno · Source [3] |
Chemical parameters (31)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | < 0,9 µg/l below limit of quantification | 3 µg/l | < 30 % * | Maximum · Comune di Duno · Source [3] |
| Alachlor | < 0,01 µg/l below limit of quantification | — | — | Maximum · Comune di Duno · Source [1] |
| Antimony | < 1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Maximum · Comune di Duno · Source [3] |
| Arsenic | < 1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Maximum · Comune di Duno · Source [3] |
| Atrazine | < 0,01 µg/l below limit of quantification | — | — | Maximum · Comune di Duno · Source [1] |
| Bentazone | < 0,01 µg/l below limit of quantification | — | — | Maximum · Comune di Duno · Source [1] |
| Benzene | < 0,3 µg/l below limit of quantification | 1 µg/l | < 30 % * | Maximum · Comune di Duno · Source [3] |
| Boron | 0,1 mg/l | 1.5 mg/l | 7 % | Maximum · Comune di Duno · Source [3] |
| Bromodichloromethane | 1 µg/l | — | — | Maximum · Comune di Duno · Source [3] |
| Cadmium | < 0,5 µg/l below limit of quantification | 5 µg/l | < 10 % * | Maximum · Comune di Duno · Source [3] |
| Chlorate | 0,17 mg/l | 0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid | — | Median · Comune di Duno · Source [1] |
| Chlorite | < 0,05 mg/l below limit of quantification | 0,25 — bzw. 0,70 bei Desinfektion mit Chlordioxid | — | Maximum · Comune di Duno · Source [2] |
| Chromium | < 2 µg/l below limit of quantification | 50 µg/l | < 4 % * | Maximum · Comune di Duno · Source [3] |
| Copper | < 0,1 mg/l below limit of quantification | 2 mg/l | < 5 % * | Maximum · Comune di Duno · Source [3] |
| Dibromochloromethane | < 1 µg/l below limit of quantification | — | — | Maximum · Comune di Duno · Source [3] |
| Fluoride | 0,1 mg/l | 1.5 mg/l | 7 % | Median · Comune di Duno · Source [2] |
| Lead | < 1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Maximum · Comune di Duno · Source [3] |
| Molinate | < 0,01 µg/l below limit of quantification | — | — | Maximum · Comune di Duno · Source [1] |
| Nickel | < 2 µg/l below limit of quantification | 20 µg/l | < 10 % * | Maximum · Comune di Duno · Source [3] |
| Nitrate | 9 mg/l | 50 mg/l | 18 % | Median · Comune di Duno · Source [3] |
| Nitrite | < 0,05 mg/l below limit of quantification | 0.5 mg/l | < 10 % * | Maximum · Comune di Duno · Source [3] |
| Propazine | < 0,01 µg/l below limit of quantification | — | — | Maximum · Comune di Duno · Source [1] |
| Selenium | < 1 µg/l below limit of quantification | 20 µg/l | < 5 % * | Maximum · Comune di Duno · Source [3] |
| Simazine | < 0,01 µg/l below limit of quantification | — | — | Maximum · Comune di Duno · Source [1] |
| Terbuthylazine | < 0,01 µg/l below limit of quantification | — | — | Maximum · Comune di Duno · Source [1] |
| Tetrachloroethene | < 1 µg/l below limit of quantification | — | — | Maximum · Comune di Duno · Source [3] |
| Tetrachloroethene and Trichloroethene (sum) | < 1 µg/l below limit of quantification | 10 µg/l | < 10 % * | Maximum · Comune di Duno · Source [1] |
| Tribromomethane (bromoform) | < 1 µg/l below limit of quantification | — | — | Maximum · Comune di Duno · Source [3] |
| Trichloroethene | < 1 µg/l below limit of quantification | — | — | Maximum · Comune di Duno · Source [3] |
| Trichloromethane (chloroform) | 2 µg/l | — | — | Maximum · Comune di Duno · Source [3] |
| Trihalomethanes — Total | 3 µg/l | 30 µg/l | 10 % | Maximum · Comune di Duno · Source [3] |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
PFAS (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| HFPO-DA (GenX) | < 0,0010 µg/l below limit of quantification | — | — | Maximum · Comune di Duno · Source [1] |
| Perfluorodecane sulfonic acid (PFDS) | < 0,0010 µg/l below limit of quantification | — | — | Maximum · Comune di Duno · Source [1] |
| Trifluoroacetic acid (TFA) | 2 µg/l | 10 µg/l | 20 % | Maximum · Comune di Duno · Source [1] |
Indicator parameters (13)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | 16 µg/l | 0.2 mg/l | 8 % | Median · Comune di Duno · Source [2] |
| Ammonium | < 0,13 mg/l below limit of quantification | 0.5 mg/l | < 26 % * | Maximum · Comune di Duno · Source [3] |
| Chloride | 2 mg/l | 250 mg/l | 0.8 % | Median · Comune di Duno · Source [3] |
| Clostridium perfringens (including spores) | 0 UFC/100ml | 0/100 ml | — | Maximum · Comune di Duno · Source [3] |
| Coliform bacteria | 0 UFC/100ml | 0/100 ml | — | Maximum · Comune di Duno · Source [3] |
| Colony count 22 °C | 0 UFC/1ml | senza variazioni anomale | — | Median · Comune di Duno · Source [1] |
| Iron | 14 µg/l | 0.2 mg/l | 7 % | Median · Comune di Duno · Source [2] |
| Manganese | < 5 µg/l below limit of quantification | 50 µg/l | < 10 % * | Maximum · Comune di Duno · Source [3] |
| pH | 7,6 pH_unit | 6,5–9,5 | — | Median · Comune di Duno · Source [3] |
| Sodium | 2 mg/l | 200 mg/l | 1 % | Median · Comune di Duno · Source [3] |
| Sulphate | 3 mg/l | 250 mg/l | 1 % | Median · Comune di Duno · Source [3] |
| Total organic carbon (TOC) | 1 mg/l | senza variazioni anomale | — | Maximum · Comune di Duno · Source [1] |
| Turbidity | 0,32 NTU | accettabile per i consumatori, senza variazioni anomale | — | Median · Comune di Duno · Source [3] |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Further parameters (8)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Barium | < 1 mg/l below limit of quantification | — | — | Maximum · Comune di Duno · Source [3] |
| Calcium | 57 mg/l | — | — | Median · Comune di Duno · Source [3] |
| Dry residue | 203 mg/l | — | — | Median · Comune di Duno · Source [3] |
| Magnesium | 6 mg/l | — | — | Median · Comune di Duno · Source [3] |
| Potassium | < 1 mg/l below limit of quantification | — | — | Maximum · Comune di Duno · Source [3] |
| Total hardness | 16,3 ° f | — | — | Median · Comune di Duno · Source [3] |
| Vanadium | < 10 µg/l below limit of quantification | 0.14 mg/l | < 7 % * | Maximum · Comune di Duno · Source [3] |
| Zinc | < 50 µg/l below limit of quantification | — | — | Maximum · Comune di Duno · Source [3] |
* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.
Values taken unchanged from the publications linked below — for each parameter the most recent recorded value. „—" in the parametric value column: no currently valid legal parametric value is stored in our database for this parameter; the parameter register with all parametric values is being expanded continuously.
How to read the share of the parametric value
Several samples per year: for chemical parameters the mean value is given, for microbiological ones the highest measured value. There the parametric value is zero — a single finding would disappear in the average, and it is precisely that finding which is the information. Which reference applies is stated in the last column of the table.
Legal basis: Art. 18 D.Lgs. 18/2023 as amended by D.Lgs. 102/2025 (transposition of EU Directive 2020/2184). The values are not official — the publication of the Gestore, to which every row links, remains authoritative. Assignment of the comune: information in the analysis document, resolved against the municipality list of ISTAT (territorial status 01.01.2026, CC BY 4.0).