Sediment Ecotoxicology

ECT’s portfolio of sediment tests includes several standard species. All tests are offered according to GLP in compliance with OECD, EPA and ISO guidelines. If required by specific scientific or regulatory needs, additional custom-designed studies can be developed and performed, e.g. by including alternative test species or modified exposure scenarios.

Aquatic Insects

Sediment-Water Chironomid Toxicity Test Using Spiked Sediment OECD 218 (2004)
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Sediment-Water Chironomid Toxicity Test Using Spiked Water OECD 219 (2004)
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Sediment-Water Chironomid Life-Cycle Toxicity Test (Spiked Sediment Or Spiked Water) OECD 233 (2010)

Aquatic Oligochaetes

Sediment-Water Lumbriculus Toxicity Test Using Spiked Sediment OECD 225 (2007)
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Sediment Toxicity Test with Tubifex tubifex ASTM International E 1706 (2000). Standard Test Method for Measuring the Toxicity of Sediment-Associated Contaminants with Freshwater Invertebrates

Aquatic Crustaceans

Hyalella azteca, Sediment Toxicity (28 Days) based on ASTM International E 1706 (2000) and OECD 218 (2004)

Characterisation of Sediment

Microbial Characterisation

Determination of soil microbial biomass – Part 1:
Substrate-induced respiration method
ISO 14240-1 (1997)
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Determination of soil microbial biomass – Part 2:
Fumigation-extraction method
ISO 14240-2 (1997)
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Physical/Chemical Characterisation

• pH
• Texture
• Organic content
• Organic carbon content
• Maximum water capacity
• Cation exchange capacity (according to Mehlich)
• Nitrogen content
• Carbonate content