Drinking water in Puderbach
3 supply zones — values can differ depending on the district. Below is the zone with the most documented parameters, the others collapsed underneath. To determine the exact match, look up the postcode.
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.
ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW
TWIST RLP - ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TWAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0 µg/L | 0.1 µg/l | 0 % | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Nitrate | 18.8 mg/L | 50 mg/l | 38 % | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Lead | < 0.3 µg/L below limit of quantification | 10 µg/l | < 3 % * | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Sulphate | 7.2 mg/L | 250 mg/l | 3 % | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Sodium | 7.3 mg/L | 200 mg/l | 4 % | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
* 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 (29 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
Chemical parameters (14)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Antimony | < 0.3 µg/L below limit of quantification | 5 µg/l | < 6 % * | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Arsenic | < 0.3 µg/L below limit of quantification | 10 µg/l | < 3 % * | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Boron | 0.0029 mg/L | 1 mg/l | 0.3 % | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Cadmium | < 0.3 µg/L below limit of quantification | 3 µg/l | < 10 % * | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Copper | 0.0031 mg/L | 2 mg/l | 0.2 % | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Cyanide | < 0.006 mg/L below limit of quantification | 50 µg/l | < 12 % * | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Fluoride | 0.06 mg/L | 1.5 mg/l | 4 % | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Lead | < 0.3 µg/L below limit of quantification | 10 µg/l | < 3 % * | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Mercury | < 0.1 µg/L below limit of quantification | 1 µg/l | < 10 % * | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Nickel | 0.68 µg/L | 20 µg/l | 3 % | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Nitrate | 18.8 mg/L | 50 mg/l | 38 % | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Nitrite | < 0.01 mg/L below limit of quantification | 0.5 mg/l | < 2 % * | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Selenium | < 0.5 µg/L below limit of quantification | 10 µg/l | < 5 % * | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Uranium | < 0.3 µg/L below limit of quantification | 10 µg/l | < 3 % * | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
* 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 (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Sum of PFAS | 0 µg/L | 0.1 µg/l | 0 % | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
Indicator parameters (10)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | 0.013 mg/L | 0.2 mg/l | 6 % | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Ammonium | < 0.05 mg/L below limit of quantification | 0.5 mg/l | < 10 % * | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Chloride | 15 mg/L | 250 mg/l | 6 % | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Coliform bacteria | 0 Anzahl/100ml | 0/100 ml | — | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Iron | < 0.0005 mg/L below limit of quantification | 0.2 mg/l | < 0.2 % * | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Manganese | < 0.0003 mg/L below limit of quantification | 50 µg/l | < 0.6 % * | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| pH | 7.71 - | 6,5–9,5 | — | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Sodium | 7.3 mg/L | 200 mg/l | 4 % | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Sulphate | 7.2 mg/L | 250 mg/l | 3 % | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Temperature | 6 °C | — | — | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
* 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 (3)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 51 mg/L | — | — | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Magnesium | 4 mg/L | — | — | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
| Potassium | 1.3 mg/L | — | — | Mean · ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW |
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.
Postcodes in this zone: 56305
Show 2 more supply zones
Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach
TWIST RLP - Versorgungsgebiet AB/HB Dernbacher Kopf, DernbachAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 21 mg/L | 50 mg/l | 42 % | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Lead | < 1 µg/L below limit of quantification | 10 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Sulphate | < 10 mg/L below limit of quantification | 250 mg/l | < 4 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Sodium | 7 mg/L | 200 mg/l | 3 % | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
* 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 (29 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
Chemical parameters (14)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Antimony | < 0.5 µg/L below limit of quantification | 5 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Arsenic | < 1 µg/L below limit of quantification | 10 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Boron | < 0.1 mg/L below limit of quantification | 1 mg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Cadmium | < 0.3 µg/L below limit of quantification | 3 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Copper | < 0.05 mg/L below limit of quantification | 2 mg/l | < 3 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Cyanide | < 0.005 mg/L below limit of quantification | 50 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Fluoride | < 0.15 mg/L below limit of quantification | 1.5 mg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Lead | < 1 µg/L below limit of quantification | 10 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Mercury | < 0.1 µg/L below limit of quantification | 1 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Nickel | 3.1 µg/L | 20 µg/l | 16 % | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Nitrate | 21 mg/L | 50 mg/l | 42 % | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Nitrite | < 0.05 mg/L below limit of quantification | 0.5 mg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Selenium | < 1 µg/L below limit of quantification | 10 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Uranium | < 1 µg/L below limit of quantification | 10 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
* 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.
Indicator parameters (10)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | 0.037 mg/L | 0.2 mg/l | 18 % | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Ammonium | < 0.05 mg/L below limit of quantification | 0.5 mg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Chloride | 14 mg/L | 250 mg/l | 6 % | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Coliform bacteria | 0 Anzahl/100ml | 0/100 ml | — | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Iron | < 0.02 mg/L below limit of quantification | 0.2 mg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Manganese | < 0.005 mg/L below limit of quantification | 50 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| pH | 7.77 - | 6,5–9,5 | — | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Sodium | 7 mg/L | 200 mg/l | 3 % | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Sulphate | < 10 mg/L below limit of quantification | 250 mg/l | < 4 % * | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Temperature | 11 °C | — | — | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
* 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 (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 48 mg/L | — | — | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Magnesium | 4 mg/L | — | — | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Potassium | 1.5 mg/L | — | — | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
| Total hardness | 1.42 mmol/l | — | — | Mean · Versorgungsgebiet AB/HB Dernbacher Kopf, Dernbach |
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.
Postcodes in this zone: 56305
Versorgungsgebiet AB/HB Keltenhügel, Lautzert
TWIST RLP - Versorgungsgebiet AB/HB Keltenhügel, LautzertAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | 21 mg/L | 50 mg/l | 42 % | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Lead | < 1 µg/L below limit of quantification | 10 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Sulphate | < 10 mg/L below limit of quantification | 250 mg/l | < 4 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Sodium | 7 mg/L | 200 mg/l | 3 % | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
* 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 (29 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Escherichia coli (E. coli) | 0 Anzahl/100ml | 0/100 ml | — | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
Chemical parameters (14)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Antimony | < 0.5 µg/L below limit of quantification | 5 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Arsenic | < 1 µg/L below limit of quantification | 10 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Boron | < 0.1 mg/L below limit of quantification | 1 mg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Cadmium | < 0.3 µg/L below limit of quantification | 3 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Copper | < 0.05 mg/L below limit of quantification | 2 mg/l | < 3 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Cyanide | < 0.005 mg/L below limit of quantification | 50 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Fluoride | < 0.15 mg/L below limit of quantification | 1.5 mg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Lead | < 1 µg/L below limit of quantification | 10 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Mercury | < 0.1 µg/L below limit of quantification | 1 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Nickel | 2.9 µg/L | 20 µg/l | 14 % | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Nitrate | 21 mg/L | 50 mg/l | 42 % | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Nitrite | < 0.05 mg/L below limit of quantification | 0.5 mg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Selenium | < 1 µg/L below limit of quantification | 10 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Uranium | < 1 µg/L below limit of quantification | 10 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
* 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.
Indicator parameters (10)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | 0.032 mg/L | 0.2 mg/l | 16 % | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Ammonium | < 0.05 mg/L below limit of quantification | 0.5 mg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Chloride | 14 mg/L | 250 mg/l | 6 % | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Coliform bacteria | 0 Anzahl/100ml | 0/100 ml | — | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Iron | < 0.02 mg/L below limit of quantification | 0.2 mg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Manganese | < 0.005 mg/L below limit of quantification | 50 µg/l | < 10 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| pH | 7.68 - | 6,5–9,5 | — | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Sodium | 7 mg/L | 200 mg/l | 3 % | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Sulphate | < 10 mg/L below limit of quantification | 250 mg/l | < 4 % * | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Temperature | 14 °C | — | — | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
* 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 (4)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Calcium | 49 mg/L | — | — | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Magnesium | 4 mg/L | — | — | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Potassium | 1.4 mg/L | — | — | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
| Total hardness | 1.48 mmol/l | — | — | Mean · Versorgungsgebiet AB/HB Keltenhügel, Lautzert |
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.
Postcodes in this zone: 56305
Frequently asked questions about drinking water in Puderbach
- How much nitrate is in the drinking water in Puderbach?
- TWIST RLP - ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW publishes a nitrate value of 18.8 mg/L for the supply zone ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW. The statutory parametric value is 50 mg/l; the measured value represents 38 % of the parametric value. Basis: Publication by the water supplier, retrieved on 13/07/2026.
- Are PFAS detectable in the drinking water in Puderbach?
- TWIST RLP - ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW publishes for the supply zone ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW a sum value PFAS-20 of 0 µg/L. The statutory parametric value is 0.1 µg/l; the measured value represents 0 % of the parametric value. For the sum of the 20 individual substances, this parametric value has applied since 12/01/2026. Basis: Publication by the water supplier, retrieved on 13/07/2026.
- Who supplies the drinking water in Puderbach?
- TWIST RLP - ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW. The values shown here come from the supply zone ÜNS Wiesenhof-Breibach von VG Puderbach(WW), TW and apply to the water the supplier delivers. What happens between the building connection and the tap — in old lead pipes, for example — is not covered by these analyses; information on that is provided by owners, the health authority or an examination by an accredited laboratory.
General questions — how current the data is, limit of quantification, parametric values, who is behind this site — are answered under Questions & answers.