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Surface Water Chemistry & Quality

The ECN protocol for surface water chemistry and quality (measurement of physical & chemical variables) (FWC/FWA)
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FWC/FWA

Protocol file

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Site types that use this protocol

The freshwater physical and chemical variables measured in this protocol were selected by ECN because they are expected to indicate the possible causes and consequences of environmental change in the aquatic environment.

Dip samples are analysed for a number of determinands, including major ions and heavy metals, at a recommended frequency of weekly for rivers, fortnightly for lakes.  Continuous pH, temperature, conductivity and turbidity recording is carried out at some sites.  Temperature and dissolved oxygen profiles are measured in lakes.

There are two related protocols described in the attached document:

  • FWC: manual sampling
  • FWA: automatic sampling
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Our field activities

SEPTEMBER

This is the last of the busy months in terms of field work at terrestrial sites as the season for monitoring butterflies, frogs, grazing animals and bats draws to an end. In rivers and lakes we sample diatoms for the third time in the year. The usual year-round measurements are also made.

See all this month's field measurements...

Loch Neagh