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Drinking water in Perl

2 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

12 % Share of the parametric value. The proportion of the permitted maximum that the measured value uses — here 12 %, so just over an eighth.
< 10 % * Below the limit of quantification. The substance was not detectable. The mark shows where the detection limit lies relative to the parametric value — the actual share of the parametric value is below that.

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.

Gemeindewasserwerk Perl - Probenahmestelle: Sehndorf, Vereinhaus / Toilette, Z WB

Gemeindewasserwerk Perl

Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 16/05/2024. 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.

Water hardness
33 °dH
Hardness range hard
Key values Gemeindewasserwerk Perl - Probenahmestelle: Sehndorf, Vereinhaus / Toilette, Z WB
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 21,5 mg/l 50 mg/l
43 %
Single value
Lead <0,30 µg/l
below limit of quantification
10 µg/l
< 3 % *
Single value
Sulphate 252,8 mg/l 250 mg/l
101 % above the parametric value
Single value
Sodium 9,8 mg/l 200 mg/l
5 %
Single value

* 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.

An exceedance of a parametric value does not automatically mean a health risk; the statutory parametric values include safety margins. Assessment and any measures are the responsibility of the competent health authority of the respective country.

Show all recorded parameters (112 — most recent value per parameter)

Chemical parameters (88)

Chemical parameters – Gemeindewasserwerk Perl - Probenahmestelle: Sehndorf, Vereinhaus / Toilette, Z WB
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,2 µg/l
below limit of quantification
3 µg/l
< 7 % *
Single value
Alachlor <0,02 µg/l
below limit of quantification
Single value
Ametryn <0,02 µg/l
below limit of quantification
Single value
Antimony <0,3 µg/l
below limit of quantification
5 µg/l
< 6 % *
Single value
Arsenic <0,6 µg/l
below limit of quantification
10 µg/l
< 6 % *
Single value
Atrazine <0,02 µg/l
below limit of quantification
Single value
Benzene <0,2 µg/l
below limit of quantification
1 µg/l
< 20 % *
Single value
Benzo(a)pyrene <0,001 µg/l
below limit of quantification
10 ng/l
< 10 % *
Single value
Benzo(b)fluoranthene <0,001 µg/l
below limit of quantification
Single value
Benzo(ghi)perylene <0,001 µg/l
below limit of quantification
Single value
Benzo(k)fluoranthene <0,001 µg/l
below limit of quantification
Single value
Bifenox <0,03 µg/l
below limit of quantification
Single value
Bisphenol A <0,10 µg/l
below limit of quantification
2.5 µg/l
< 4 % *
Single value
Boron <0,05 mg/l
below limit of quantification
1 mg/l
< 5 % *
Single value
Boscalid <0,02 µg/l
below limit of quantification
Single value
Bromacil <0,02 µg/l
below limit of quantification
Single value
Bromate <0,002 mg/l
below limit of quantification
10 µg/l
< 20 % *
Single value
Bromodichloromethane <0,2 µg/l
below limit of quantification
Single value
Cadmium <0,20 µg/l
below limit of quantification
3 µg/l
< 7 % *
Single value
Carbetamide <0,02 µg/l
below limit of quantification
Single value
Chlorfenvinphos <0,02 µg/l
below limit of quantification
Single value
Chloridazon <0,02 µg/l
below limit of quantification
Single value
Chlorotoluron <0,02 µg/l
below limit of quantification
Single value
Chromium <0,3 µg/l
below limit of quantification
25 µg/l
< 1 % *
Single value
Clopyralid <0,04 µg/l
below limit of quantification
Single value
Copper <0,002 mg/l
below limit of quantification
2 mg/l
< 0.1 % *
Single value
Cyanazine <0,02 µg/l
below limit of quantification
Single value
Cyanide <0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value
Desethylatrazine <0,01 µg/l
below limit of quantification
Single value
Desisopropylatrazine <0,01 µg/l
below limit of quantification
Single value
Desmetryn <0,02 µg/l
below limit of quantification
Single value
Dibromochloromethane <0,2 µg/l
below limit of quantification
Single value
Diflufenican <0,02 µg/l
below limit of quantification
Single value
Dimefuron <0,03 µg/l
below limit of quantification
Single value
Dimethachlor <0,02 µg/l
below limit of quantification
Single value
Dimethenamid <0,02 µg/l
below limit of quantification
Single value
Diuron <0,02 µg/l
below limit of quantification
Single value
Epoxiconazole <0,025 µg/l
below limit of quantification
Single value
Fenuron <0,02 µg/l
below limit of quantification
Single value
Flufenacet <0,02 µg/l
below limit of quantification
Single value
Fluoranthene <0,001 µg/l
below limit of quantification
Single value
Fluoride 0,19 mg/l 1.5 mg/l
13 %
Single value
Flurtamone <0,02 µg/l
below limit of quantification
Single value
Fluxapyroxad <0,02 µg/l
below limit of quantification
Single value
Hexazinone <0,02 µg/l
below limit of quantification
Single value
Imidacloprid <0,02 µg/l
below limit of quantification
Single value
Indeno(1,2,3-cd)pyrene <0,001 µg/l
below limit of quantification
Single value
Isoproturon <0,02 µg/l
below limit of quantification
Single value
Lead <0,30 µg/l
below limit of quantification
10 µg/l
< 3 % *
Single value
Linuron <0,02 µg/l
below limit of quantification
Single value
Mercury <0,10 µg/l
below limit of quantification
1 µg/l
< 10 % *
Single value
Metalaxyl <0,02 µg/l
below limit of quantification
Single value
Metamitron <0,02 µg/l
below limit of quantification
Single value
Metazachlor <0,02 µg/l
below limit of quantification
Single value
Metazachlor acid <0,02 µg/l
below limit of quantification
Single value
Metazachlor sulfonic acid <0,02 µg/l
below limit of quantification
Single value
Methabenzthiazuron <0,02 µg/l
below limit of quantification
Single value
Metobromuron <0,02 µg/l
below limit of quantification
Single value
Metolachlor <0,02 µg/l
below limit of quantification
Single value
Metoxuron <0,02 µg/l
below limit of quantification
Single value
Metribuzin <0,02 µg/l
below limit of quantification
Single value
Monolinuron <0,02 µg/l
below limit of quantification
Single value
Monuron <0,02 µg/l
below limit of quantification
Single value
Napropamide <0,02 µg/l
below limit of quantification
Single value
Nickel 1,0 µg/l 20 µg/l
5 %
Single value
Nicosulfuron <0,02 µg/l
below limit of quantification
Single value
Nitrate 21,5 mg/l 50 mg/l
43 %
Single value
Nitrite <0,005 mg/l
below limit of quantification
0.5 mg/l
< 1 % *
Single value
Pendimethalin <0,02 µg/l
below limit of quantification
Single value
Prometryn <0,02 µg/l
below limit of quantification
Single value
Propazine <0,02 µg/l
below limit of quantification
Single value
Propiconazole <0,02 µg/l
below limit of quantification
Single value
Prosulfocarb <0,02 µg/l
below limit of quantification
Single value
Quinmerac <0,04 µg/l
below limit of quantification
Single value
Sebuthylazine <0,02 µg/l
below limit of quantification
Single value
Selenium <0,60 µg/l
below limit of quantification
10 µg/l
< 6 % *
Single value
Simazine <0,02 µg/l
below limit of quantification
Single value
Tebuconazole <0,02 µg/l
below limit of quantification
Single value
Terbuthylazine <0,02 µg/l
below limit of quantification
Single value
Terbutryn <0,02 µg/l
below limit of quantification
Single value
Tetrachloroethene <0,2 µg/l
below limit of quantification
Single value
Thiacloprid <0,05 µg/l
below limit of quantification
Single value
Triadimenol <0,02 µg/l
below limit of quantification
Single value
Tribromomethane (bromoform) <0,2 µg/l
below limit of quantification
Single value
Trichloroethene <0,2 µg/l
below limit of quantification
Single value
Trichloromethane (chloroform) <0,2 µg/l
below limit of quantification
Single value
Trihalomethanes — Total 0,0 µg/l 50 µg/l
0 %
Single value
Uranium 1,90 µg/l 10 µg/l
19 %
Single value

* 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.

Metabolites (2)

Metabolites – Gemeindewasserwerk Perl - Probenahmestelle: Sehndorf, Vereinhaus / Toilette, Z WB
Parameter Value Parametric value Share of the parametric value Reference
Desphenyl-chloridazon 0,12 µg/l Single value
Dimethylsulfamide (DMS) <0,02 µg/l
below limit of quantification
Single value

Indicator parameters (15)

Indicator parameters – Gemeindewasserwerk Perl - Probenahmestelle: Sehndorf, Vereinhaus / Toilette, Z WB
Parameter Value Parametric value Share of the parametric value Reference
Aluminium <0,005 mg/l
below limit of quantification
0.2 mg/l
< 3 % *
Single value
Ammonium <0,02 mg/l
below limit of quantification
0.5 mg/l
< 4 % *
Single value
Chloride 22,9 mg/l 250 mg/l
9 %
Single value
Colony count 22 °C 0 /ml ohne anormale Veränderung Single value
Colony count 36 °C 0 /ml ohne anormale Veränderung Single value
Colour <0,10 1/m
below limit of quantification
0.5 m⁻¹ Single value
Conductivity (25 °C) 913 µS/cm 2,790 µS/cm Single value
Iron <0,005 mg/l
below limit of quantification
0.2 mg/l
< 3 % *
Single value
Manganese <0,002 mg/l
below limit of quantification
50 µg/l
< 4 % *
Single value
Odour nein für den Verbraucher annehmbar Single value
Oxidisability <0,50 mg/l O2
below limit of quantification
5 mg/l O2 Single value
Sodium 9,8 mg/l 200 mg/l
5 %
Single value
Sulphate 252,8 mg/l 250 mg/l
101 % above the parametric value
Single value
Taste ohne für den Verbraucher annehmbar Single value
Turbidity 0,36 FNU 1 NTU Single value

* 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.

An exceedance of a parametric value does not automatically mean a health risk; the statutory parametric values include safety margins. Assessment and any measures are the responsibility of the competent health authority of the respective country.

Further parameters (7)

Further parameters – Gemeindewasserwerk Perl - Probenahmestelle: Sehndorf, Vereinhaus / Toilette, Z WB
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 6,08 mmol/l Single value
Calcium 161,7 mg/l Single value
Magnesium 44,8 mg/l Single value
Potassium 2,9 mg/l Single value
Sum of anion equivalents 12,28 mmol/l Single value
Sum of cation equivalents 12,26 mmol/l Single value
Total hardness 33 °dH Single 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.

Source: https://perl.saarland/wasserversorgung.html?file=files/Rathaus/wasserversorgung/Analyse_Bohrung_5_2024.pdf&cid=6370 · 2. Ausfertigung vom 10.06.2024, Vorgängerversion 1 · Probenahme 16.05.2024 · retrieved on 18/08/2026

Postcodes in this zone: 66706

Show 1 more supply zone

Kesslingen, Friedhof / Zapfhahn

Gemeindewasserwerk Perl

Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 16/05/2024. 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.

Water hardness
28 °dH
Hardness range hard
Key values Kesslingen, Friedhof / Zapfhahn
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 29,3 mg/l 50 mg/l
59 %
Single value
Lead <0,30 µg/l
below limit of quantification
10 µg/l
< 3 % *
Single value
Sulphate 172,9 mg/l 250 mg/l
69 %
Single value
Sodium 6,6 mg/l 200 mg/l
3 %
Single value

* 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 (113 — most recent value per parameter)

Chemical parameters (88)

Chemical parameters – Kesslingen, Friedhof / Zapfhahn
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,2 µg/l
below limit of quantification
3 µg/l
< 7 % *
Single value
Alachlor <0,02 µg/l
below limit of quantification
Single value
Ametryn <0,02 µg/l
below limit of quantification
Single value
Antimony <0,3 µg/l
below limit of quantification
5 µg/l
< 6 % *
Single value
Arsenic <0,6 µg/l
below limit of quantification
10 µg/l
< 6 % *
Single value
Atrazine <0,02 µg/l
below limit of quantification
Single value
Benzene <0,2 µg/l
below limit of quantification
1 µg/l
< 20 % *
Single value
Benzo(a)pyrene <0,001 µg/l
below limit of quantification
10 ng/l
< 10 % *
Single value
Benzo(b)fluoranthene <0,001 µg/l
below limit of quantification
Single value
Benzo(ghi)perylene <0,001 µg/l
below limit of quantification
Single value
Benzo(k)fluoranthene <0,001 µg/l
below limit of quantification
Single value
Bifenox <0,03 µg/l
below limit of quantification
Single value
Bisphenol A <0,10 µg/l
below limit of quantification
2.5 µg/l
< 4 % *
Single value
Boron <0,05 mg/l
below limit of quantification
1 mg/l
< 5 % *
Single value
Boscalid <0,02 µg/l
below limit of quantification
Single value
Bromacil <0,02 µg/l
below limit of quantification
Single value
Bromate <0,002 mg/l
below limit of quantification
10 µg/l
< 20 % *
Single value
Bromodichloromethane <0,2 µg/l
below limit of quantification
Single value
Cadmium <0,20 µg/l
below limit of quantification
3 µg/l
< 7 % *
Single value
Carbetamide <0,02 µg/l
below limit of quantification
Single value
Chlorfenvinphos <0,02 µg/l
below limit of quantification
Single value
Chloridazon <0,02 µg/l
below limit of quantification
Single value
Chlorotoluron <0,02 µg/l
below limit of quantification
Single value
Chromium <0,3 µg/l
below limit of quantification
25 µg/l
< 1 % *
Single value
Clopyralid <0,04 µg/l
below limit of quantification
Single value
Copper 0,005 mg/l 2 mg/l
0.3 %
Single value
Cyanazine <0,02 µg/l
below limit of quantification
Single value
Cyanide <0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value
Desethylatrazine <0,01 µg/l
below limit of quantification
Single value
Desisopropylatrazine <0,01 µg/l
below limit of quantification
Single value
Desmetryn <0,02 µg/l
below limit of quantification
Single value
Dibromochloromethane <0,2 µg/l
below limit of quantification
Single value
Diflufenican <0,02 µg/l
below limit of quantification
Single value
Dimefuron <0,03 µg/l
below limit of quantification
Single value
Dimethachlor <0,02 µg/l
below limit of quantification
Single value
Dimethenamid <0,02 µg/l
below limit of quantification
Single value
Diuron <0,02 µg/l
below limit of quantification
Single value
Epoxiconazole <0,025 µg/l
below limit of quantification
Single value
Fenuron <0,02 µg/l
below limit of quantification
Single value
Flufenacet <0,02 µg/l
below limit of quantification
Single value
Fluoranthene <0,001 µg/l
below limit of quantification
Single value
Fluoride 0,16 mg/l 1.5 mg/l
11 %
Single value
Flurtamone <0,02 µg/l
below limit of quantification
Single value
Fluxapyroxad <0,02 µg/l
below limit of quantification
Single value
Hexazinone <0,02 µg/l
below limit of quantification
Single value
Imidacloprid <0,02 µg/l
below limit of quantification
Single value
Indeno(1,2,3-cd)pyrene <0,001 µg/l
below limit of quantification
Single value
Isoproturon <0,02 µg/l
below limit of quantification
Single value
Lead <0,30 µg/l
below limit of quantification
10 µg/l
< 3 % *
Single value
Linuron <0,02 µg/l
below limit of quantification
Single value
Mercury <0,10 µg/l
below limit of quantification
1 µg/l
< 10 % *
Single value
Metalaxyl <0,02 µg/l
below limit of quantification
Single value
Metamitron <0,02 µg/l
below limit of quantification
Single value
Metazachlor <0,02 µg/l
below limit of quantification
Single value
Metazachlor acid <0,02 µg/l
below limit of quantification
Single value
Metazachlor sulfonic acid <0,02 µg/l
below limit of quantification
Single value
Methabenzthiazuron <0,02 µg/l
below limit of quantification
Single value
Metobromuron <0,02 µg/l
below limit of quantification
Single value
Metolachlor <0,02 µg/l
below limit of quantification
Single value
Metoxuron <0,02 µg/l
below limit of quantification
Single value
Metribuzin <0,02 µg/l
below limit of quantification
Single value
Monolinuron <0,02 µg/l
below limit of quantification
Single value
Monuron <0,02 µg/l
below limit of quantification
Single value
Napropamide <0,02 µg/l
below limit of quantification
Single value
Nickel 0,8 µg/l 20 µg/l
4 %
Single value
Nicosulfuron <0,02 µg/l
below limit of quantification
Single value
Nitrate 29,3 mg/l 50 mg/l
59 %
Single value
Nitrite <0,005 mg/l
below limit of quantification
0.5 mg/l
< 1 % *
Single value
Pendimethalin <0,02 µg/l
below limit of quantification
Single value
Prometryn <0,02 µg/l
below limit of quantification
Single value
Propazine <0,02 µg/l
below limit of quantification
Single value
Propiconazole <0,02 µg/l
below limit of quantification
Single value
Prosulfocarb <0,02 µg/l
below limit of quantification
Single value
Quinmerac <0,04 µg/l
below limit of quantification
Single value
Sebuthylazine <0,02 µg/l
below limit of quantification
Single value
Selenium <0,60 µg/l
below limit of quantification
10 µg/l
< 6 % *
Single value
Simazine <0,02 µg/l
below limit of quantification
Single value
Tebuconazole <0,02 µg/l
below limit of quantification
Single value
Terbuthylazine <0,02 µg/l
below limit of quantification
Single value
Terbutryn <0,02 µg/l
below limit of quantification
Single value
Tetrachloroethene <0,2 µg/l
below limit of quantification
Single value
Thiacloprid <0,05 µg/l
below limit of quantification
Single value
Triadimenol <0,02 µg/l
below limit of quantification
Single value
Tribromomethane (bromoform) <0,2 µg/l
below limit of quantification
Single value
Trichloroethene <0,2 µg/l
below limit of quantification
Single value
Trichloromethane (chloroform) <0,2 µg/l
below limit of quantification
Single value
Trihalomethanes — Total 0,0 µg/l 50 µg/l
0 %
Single value
Uranium 1,80 µg/l 10 µg/l
18 %
Single value

* 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.

Metabolites (2)

Metabolites – Kesslingen, Friedhof / Zapfhahn
Parameter Value Parametric value Share of the parametric value Reference
Desphenyl-chloridazon 0,17 µg/l Single value
Dimethylsulfamide (DMS) <0,02 µg/l
below limit of quantification
Single value

Indicator parameters (15)

Indicator parameters – Kesslingen, Friedhof / Zapfhahn
Parameter Value Parametric value Share of the parametric value Reference
Aluminium <0,005 mg/l
below limit of quantification
0.2 mg/l
< 3 % *
Single value
Ammonium <0,02 mg/l
below limit of quantification
0.5 mg/l
< 4 % *
Single value
Chloride 20,7 mg/l 250 mg/l
8 %
Single value
Colony count 22 °C 0 /ml ohne anormale Veränderung Single value
Colony count 36 °C 0 /ml ohne anormale Veränderung Single value
Colour <0,10 1/m
below limit of quantification
0.5 m⁻¹ Single value
Conductivity (25 °C) 767 µS/cm 2,790 µS/cm Single value
Iron <0,005 mg/l
below limit of quantification
0.2 mg/l
< 3 % *
Single value
Manganese <0,002 mg/l
below limit of quantification
50 µg/l
< 4 % *
Single value
Odour nein für den Verbraucher annehmbar Single value
Oxidisability <0,50 mg/l O2
below limit of quantification
5 mg/l O2 Single value
Sodium 6,6 mg/l 200 mg/l
3 %
Single value
Sulphate 172,9 mg/l 250 mg/l
69 %
Single value
Taste ohne für den Verbraucher annehmbar Single value
Turbidity 0,36 FNU 1 NTU Single value

* 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)

Further parameters – Kesslingen, Friedhof / Zapfhahn
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 5,90 mmol/l Single value
Base capacity to pH 8.2 0,42 mmol/l Single value
Calcium 116,5 mg/l Single value
Magnesium 51,1 mg/l Single value
Potassium 3,2 mg/l Single value
Sum of anion equivalents 10,50 mmol/l Single value
Sum of cation equivalents 10,39 mmol/l Single value
Total hardness 28 °dH Single 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.

Source: https://perl.saarland/wasserversorgung.html?file=files/Rathaus/wasserversorgung/Analyse_Bohrung_3_2024.pdf&cid=6368 · 2. Ausfertigung vom 10.06.2024, Vorgängerversion 1 · Probenahme 16.05.2024 · retrieved on 18/08/2026

Postcodes in this zone: 66706

Frequently asked questions about drinking water in Perl

How hard is the water in Perl?
Gemeindewasserwerk Perl publishes a total hardness of 33 °dH for the supply zone Gemeindewasserwerk Perl - Probenahmestelle: Sehndorf, Vereinhaus / Toilette, Z WB (hardness range hard). The hardness range is a classification under the German Detergents and Cleaning Products Act (soft below 8,4 °dH, medium 8,4 to 14 °dH, hard above that) and not a quality verdict — it indicates how much calcium and magnesium is dissolved in the water. Basis: 2. Ausfertigung vom 10.06.2024, Vorgängerversion 1, retrieved on 18/08/2026.
How much nitrate is in the drinking water in Perl?
Gemeindewasserwerk Perl publishes a nitrate value of 21,5 mg/l for the supply zone Gemeindewasserwerk Perl - Probenahmestelle: Sehndorf, Vereinhaus / Toilette, Z WB. The statutory parametric value is 50 mg/l; the measured value represents 43 % of the parametric value. Basis: 2. Ausfertigung vom 10.06.2024, Vorgängerversion 1, retrieved on 18/08/2026.
Who supplies the drinking water in Perl?
Gemeindewasserwerk Perl. The values shown here come from the supply zone Gemeindewasserwerk Perl - Probenahmestelle: Sehndorf, Vereinhaus / Toilette, Z WB 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.