Our Services

The suite of microbial toxicity, degradation and environmental fate tests available at Brixham Environmental Laboratory are shown below:

Screens

Toxicity assessment & screening tests
Microbial toxicity - ASRIT (OECD 209, OPPTS 850.6800)
Toxicity to Pseudomonas putida
Nitrification inhibition
Anaerobic degradation inhibition
5 day biochemical oxygen demand (BOD5), chemical oxygen demand (COD) and
organic carbon analysis.

Ready biodegradation tests

DOC die-away test  (OECD 301A)
28 day Sturm (CO2 evolution  (OECD 301B)
Modified MITI manometric test  (OECD 301C)
Closed bottle BOD28 (OECD 301D)
Modified OECD screening test (MOST)  (OECD 301E)
Manometric respirometry (Hach - MITI)  (OECD 301F)
Ready biodegradability  (OPPTS 835.3110)
Closed bottle CO2 evolution  (ISO)
Seawater biodegradation  (OECD 306)
Simulation degradation tests                                                                            Sewage Treatment simulation: activated sludge units (OECD 303A)
Sewage treatment simulation: biofilms (OECD 303B)
Transformation in soil (OECD 307)
Transformation in sediment (OECD 308)                                                             Aerobic biodegradation in surface water (OECD 309)                                 Biodegradability of chemicals discharged to wastewater (OECD 314)

Abiotic degradation tests

Photolysis (SETAC, OPPTS 835.2210, OECD 316)

Inherent biodegradation tests

Semi-continuous activated sludge (SCAS)  (OECD 302A, OPPTS 835.3210)
Zahn-Wellens (OECD 302B, OPPTS 835.3200)

Partitioning tests

Adsorption/desorption (OECD 106, OPPTS 835.1110)