Date (Publication)

2020-09-29

Date (Creation)

2020-09-23

Citation identifier

https://catalogue.ceh.ac.uk/id/5b34d963-d0f0-465e-b395-e955b89e1cd7

Citation identifier

doi: / 10.5285/5b34d963-d0f0-465e-b395-e955b89e1cd7

Other citation details

Comer-Warner, S., Blaen, P., Brekenfeld, N., Krause, S., Gooddy, D.C. (2020). Seasonal breakthrough curves of conservative (fluorescein) and reactive (resazurin and resorufin) tracers at an agriculturally-impacted stream at Wood Brook, UK, 2016-2017. NERC Environmental Information Data Centre 10.5285/5b34d963-d0f0-465e-b395-e955b89e1cd7

Point of contact

Organisation name	Individual name	Electronic mail address	Role
University of Birmingham	Comer-Warner, S.	s.comer-warner@bham.ac.uk	Author
University of Birmingham	Blaen, P.	pblaen@gmail.com	Author
University of Birmingham	Brekenfeld, N.	NXB634@student.bham.ac.uk	Author
University of Birmingham	Krause, S.	s.krause@bham.ac.uk	Author
British Geological Survey	Gooddy, D.C.	dcg@bgs.ac.uk	Author
University of Birmingham	Comer-Warner, S.	s.comer-warner@bham.ac.uk	Point of contact
NERC EDS Environmental Information Data Centre		info@eidc.ac.uk	Custodian
NERC Environmental Information Data Centre		info@eidc.ac.uk	Publisher

GEMET - INSPIRE themes, version 1.0

• Hydrography

GEMET - Concepts, version 4.1.3

• agricultural pollution

Keywords

• Hydrology

Access constraints

Other restrictions

Other constraints

no limitations

Use constraints

Other restrictions

Other constraints

This resource is available under the terms of the Open Government Licence

Use constraints

Other restrictions

Other constraints

University of Birmingham

Use constraints

Other restrictions

Other constraints

If you reuse this data, you should cite: Comer-Warner, S., Blaen, P., Brekenfeld, N., Krause, S., Gooddy, D.C. (2020). Seasonal breakthrough curves of conservative (fluorescein) and reactive (resazurin and resorufin) tracers at an agriculturally-impacted stream at Wood Brook, UK, 2016-2017. NERC Environmental Information Data Centre https://doi.org/10.5285/5b34d963-d0f0-465e-b395-e955b89e1cd7

Spatial representation type

Text, table

Distance

1000  urn:ogc:def:uom:EPSG::9001

Language

English

Character set

UTF8

Topic category

• Environment

Begin date

2016-07-13

End date

2017-03-23

Unique resource identifier

WGS 84

Distribution format

Name	Version
Comma-separated values (CSV)

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
NERC EDS Environmental Information Data Centre		info@eidc.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
	https://data-package.ceh.ac.uk/data/5b34d963-d0f0-465e-b395-e955b89e1cd7	Download the data

OnLine resource

Protocol	Linkage	Name
	https://data-package.ceh.ac.uk/sd/5b34d963-d0f0-465e-b395-e955b89e1cd7.zip	Supporting information

Hierarchy level

Dataset

Other

dataset

Statement

Fluorescein, resazurin and resorufin concentrations were analysed in-situ using on-line field fluorometers (GGUN‐FL30, Albillia Sàrl, Switzerland), which were calibrated with stream water from the study site immediately prior to tracer injection, configured to measure every 10 seconds and placed into the stream. Experiments were performed seasonally in July 2016, October 2016, February 2017 and March 2017 in the Wood Brook, Staffordshire with four fluorometers (sites 1-4), which created three sub-reaches between sites: 1-2, 2-3 and 3-4. The two upstream reaches (1-2 and 2-3) were sand-dominated and the downstream reach (3-4) was gravel-dominated. Reaches 1-2, 2-3 and 3-4 were 239.3, 289.2 and 165.1 m in length, respectively. Instantaneous solute tracer injections of both conservative (fluorescein) and reactive (resazurin) tracers dissolved in stream water immediately before injection were conducted using 1.2 g of fluorescein and 8 g of resazurin in October, February and March, and 2 g of fluorescein and 8 g of resazurin in July. The injection site was 180 m upstream of site 1 in July and 250 m upstream of site 1 in the other seasons. Tracer was injected at 18:47:00 in July, 14:10:00 in October, 14:09:00 in February and 14:29:00 in March. Breakthrough curves of fluorescein, resazurin and resorufin were measured at each of the four sites. Fluorometers were left in place for 12+ hours to ensure the tail of the curve was adequately captured. The dataset contains breakthrough curves in units of parts per billion. The breakthrough curves were measured in-situ, the raw data was then corrected for variations in temperature and turbidity and clipped at the baseline immediately before and after the tail of the breakthrough curve. Any drift in the tracer signal between the beginning and end of the breakthrough curve was corrected. Where the breakthrough curve was clearly being detected but the background concentration was below zero, the background was corrected to zero, likewise background concentrations above zero were corrected down to zero as fluorescein, resorufin and resazurin do not naturally occur in streams.

Metadata

File identifier

5b34d963-d0f0-465e-b395-e955b89e1cd7 XML

Metadata language

English

Character set

8859 Part 1

Hierarchy level

Dataset

Hierarchy level name

dataset

Date stamp

2025-11-13T16:14:51

Metadata standard name

UK GEMINI

Metadata standard version

2.3

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC EDS Environmental Information Data Centre		info@eidc.ac.uk	Point of contact