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This text describes the data presented in the paper: Evaluation of Strategies to Minimize Ecotoxic Side-Effects of Sorbent-Based Sediment Remediation

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Introductory information
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Files included in the data deposit (include a short description of what data are contained): 

1) PAH_results.xlsx: Contains the measurements of polycyclic aromatic hydrocarbons in sediment and passive samplers
2) MAC recovery and Fe content.xlsx: Contains the measured amounts of recovered magnetic materials and their measured iron contents
3) EcotoxResults.xlsx: Contains the L. variegatus reproduction, wet and dry weight growth measurements

Explain the relationship between multiple data sets, if required:


Key words used to describe the data:
Averages, median and standard deviations for measurements underpinning the figures and tables. 


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Methodological information
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A brief method description – what the data is, how and why it was collected or created, and how it was processed:

PAH measurements characterised the sediment pollution, and the pollutant availability, with and without various treatments.
Fe measurements assessed in iron contents of magnetic sorbents changed with time.
Sediment ecotoxicity tests assessed potential impacts of the various treatments on a sediment-dwelling worm.

PAH and Fe concentrations, see analytical method description in the paper.
Sediment ecotoxicity tests with Lumbriculus variegatus, see method description in the paper.

PAH and Fe measurements were conducted at Newcastle University, ecotoxicity tests were conducted at the University of Eastern Finland (UEF).
Sediment samples were shipped from Newcastle University to UEF for ecotoxicity testing.

Instruments, hardware and software used: 
Software: Excel

Date(s) of data collection: 
01/07/2014 - 31/08/2015


Geographic coverage of data:
England, UK


Data validation (how was the data checked, proofed and cleaned):
See method description in the papers and cited papers for details of the analytical quality assurance.


Overview of secondary data, if used:



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Data-specific information
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Definitions of names, labels, acronyms or specialist terminology uses for variables, records and their values: 
PAHs = polycyclic aromatic hydrocarbons, MagTOG = Magnetic type TOG activated carbon, MagBio = Magnetic biochar
FW = fresh or wet weight, DW = dry weigt
Control = River Tyne sediment without MagTOG/MagBio addition
Control RW = River Tyne sediment after recovery of intrinsic magnetic materials and contact with fresh River Tyne water
MagTOG = River Tyne sediment with 2.5% MagTOG
MagTOG R = River Tyne sediment with 2.5% MagTOG, following magnetic sorbent recovery
MagTOG RW = River Tyne sediment with 2.5% MagTOG, following magnetic sorbent recovery and contact with fresh River Tyne water
MagBio = River Tyne sediment with 2.5% MagBio
MagBio R = River Tyne sediment with 2.5% MagBio, following magnetic sorbent recovery
MagBio RW = River Tyne sediment with 2.5% MagBio, following magnetic sorbent recovery and contact with fresh River Tyne water

Explanation of weighting and grossing variables:  



Outline any missing data:

N.a.

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Contact
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Please contact rdm@ncl.ac.uk for further information