| Folder | uom (Units of Measurement) |
|---|---|
| Identifier | concentration |
| Label | Concentration units |
| Base URI | http://dd.eionet.europa.eu/vocabulary/uom/concentration/ |
| Registration status | Public draft 29 Sep 2025 16:00:44 |
| Type | Common |
| Element | Type | Status |
|---|---|---|
| Class1 | Quantitative |
Released
14 May 2015
|
| CodeDF710 | Quantitative |
Released
19 Dec 2013
|
| GWPercentile10 | Quantitative |
Released
19 Jul 2006
|
| skos:relatedMatch | Quantitative |
Released
24 Sep 2013
|
| Id | Label | Status | Status Modified | Notation |
|---|---|---|---|---|
| fg.m-3 | Femtograms per cubic meter | Valid | 29.09.2025 | fg/m3 |
| mg.l-1 | Milligrams per litre | Valid | 29.09.2025 | mg/l |
| mg.m-3 | Miligrams per cubic metre of ambient air | Valid | 01.08.2013 | mg/m3 |
| mg.m-3.day | Micrograms per cubic meter times day | Valid | 06.11.2014 | mg/m-3.day |
| mg.m-3.h | Micrograms per cubic meter times hour | Valid | 06.11.2014 | mg/m3.h |
| mgN.l-1 | Milligrams nitrogen per litre | Valid | 06.11.2014 | mg N/l |
| mgN.m-2.m-1 | Milligrams nitrogen per square meter per … | Valid | 06.11.2014 | mg N/m2/m |
| mgS.l-1 | Milligrams sulphur per litre | Valid | 06.11.2014 | mg S/l |
| mgS.m-1 | Milligrams nitrogen per meter | Valid | 26.09.2018 | mgS.m-1 |
| mgS.m-2.m-1 | Milligrams sulphur per square meter per … | Valid | 06.11.2014 | mg S/m2.m |
| mm | Millimeter | Valid | 06.11.2014 | mm |
| ng.l-1 | Nanograms per litre | Valid | 06.11.2014 | ng/l |
| ng.m-2 | Nanograms per square meter | Valid | 06.11.2014 | ng/m2 |
| ng.m-2.day-1 | Nanograms per square metre per day | Valid | 01.08.2013 | ng/m2/day |
| ng.m-3 | Nanograms per cubic metre of ambient air | Valid | 01.08.2013 | ng/m3 |
| nm | Nanometer | Valid | 25.03.2022 | nm |
| pHunits | pH | Valid | 06.11.2014 | pH units |
| particles.cm-3 | particles.cm-3 | Valid | 15.06.2021 | particles.cm-3 |
| pg.m-2.day-1 | Picograms per square metre per day | Valid | 19.09.2019 | pg/m2/day |
| pg.m-3 | Picograms per cubic metre of ambient air | Valid | 01.08.2013 | pg/m3 |
European Environment Agency
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