Nitrate concentration in drinking water: Difference between revisions

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{{variable|moderator = [[User:Päivi Meriläinen|Päivi Meriläinen]]}}


== Scope<br> ==
== Scope<br> ==
* First pass assessment:
**England and Wales 
** Tap water


This includes a verbal definition of the spatial, temporal, and other limits (system boundaries) of the variable. The scope is defined according to the use purpose of the assessment(s) that the variable belongs to.<br>
* Second pass assessment:
** England and Wales
** Finland
** Spain
** Romania
** Hungary
** Public and private (wells) drinking water source
 
*Current situation: Year 2003 data used when available


<br>
<br>
Line 9: Line 20:
== Definition<br> ==
== Definition<br> ==


The definition uses algebra or other explicit methods if possible.<br>
Concentration of nitrate in drinking water from public and private sources <br>
 
=== Causality<br> ===
 
 


=== Data<br> ===
=== Data<br> ===
 
*Finland
**Tap water: Monitoring data for 2003 for Finland [[Image:Finland Nitrate 2003.pdf]]
**Well water: Author judgement: 0-150 mg/l with median of 2 mg/l
*UK
**Tap water: Monitoring data for 2007 for England & Wales as supplied by the Drinking Water Inspectorate (Contact person James Grellier, IC)
**Well water: Author judgement: 0-150 mg/l with median of 2 mg/l
*Spain
**Tap water: Monitoring data for 2007 for Spain  (Contact person James Grellier, IC)
**Well water:Author judgement: 0-150 mg/l with median of 2 mg/l
*Romania
**Tap water: Nedialka Niagolova, Shawn P. McElmurry, Thomas C. Voice, David T. Long, Evangelos A. Petropoulos, Ivan Havezov, Karen Chou, Varban Ganev, Nitrogen species in drinking water indicate potential exposure pathway for Balkan Endemic Nephropathy, Environmental PollutionVolume 134, Issue 2, , March 2005, Pages 229-237. doi:10.1016/j.envpol.2004.08.003
[[http://www.sciencedirect.com/science/article/B6VB5-4DHX62S-1/2/fa144605059d8984cb1cd73d416b7927]]
**Well water: Catherine L Zeman, Burton Kross, and Marianna Vlad. A nested case-control study of methemoglobinemia risk factors in children of Transylvania, Romania. Environ Health Perspect. 2002 August; 110(8): 817–822.
*Hungary
**Tap water:
**Well water: Author judgement: 0-150 mg/l with median of 2 mg/l




=== Formula<br> ===
=== Formula<br> ===


 
The variable "Nitrate concentration in drinking wateris found in the Analytica version of the nitrate model.  [[Image:Nitrate.ANA]]


=== Unit<br> ===
=== Unit<br> ===


mg/l


== Result<br> ==


== Result<br> ==


If possible, a numerical expression or distribution.<br>
<gallery>
Image:No3 drinking water.PNG|'''Figure 1''' - Medians of nitrate concentration in drinking water in areas of England and Wales
</gallery>

Latest revision as of 08:10, 5 June 2009


Scope

  • First pass assessment:
    • England and Wales
    • Tap water
  • Second pass assessment:
    • England and Wales
    • Finland
    • Spain
    • Romania
    • Hungary
    • Public and private (wells) drinking water source
  • Current situation: Year 2003 data used when available


Definition

Concentration of nitrate in drinking water from public and private sources

Data

  • Finland
  • UK
    • Tap water: Monitoring data for 2007 for England & Wales as supplied by the Drinking Water Inspectorate (Contact person James Grellier, IC)
    • Well water: Author judgement: 0-150 mg/l with median of 2 mg/l
  • Spain
    • Tap water: Monitoring data for 2007 for Spain (Contact person James Grellier, IC)
    • Well water:Author judgement: 0-150 mg/l with median of 2 mg/l
  • Romania
    • Tap water: Nedialka Niagolova, Shawn P. McElmurry, Thomas C. Voice, David T. Long, Evangelos A. Petropoulos, Ivan Havezov, Karen Chou, Varban Ganev, Nitrogen species in drinking water indicate potential exposure pathway for Balkan Endemic Nephropathy, Environmental PollutionVolume 134, Issue 2, , March 2005, Pages 229-237. doi:10.1016/j.envpol.2004.08.003

[[1]]

    • Well water: Catherine L Zeman, Burton Kross, and Marianna Vlad. A nested case-control study of methemoglobinemia risk factors in children of Transylvania, Romania. Environ Health Perspect. 2002 August; 110(8): 817–822.
  • Hungary
    • Tap water:
    • Well water: Author judgement: 0-150 mg/l with median of 2 mg/l


Formula

The variable "Nitrate concentration in drinking wateris found in the Analytica version of the nitrate model. File:Nitrate.ANA

Unit

mg/l

Result

  • Figure 1 - Medians of nitrate concentration in drinking water in areas of England and Wales

    Figure 1 - Medians of nitrate concentration in drinking water in areas of England and Wales

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