November 1998, Ref. TR84
Discharges into the aquatic environment of contaminated wastewater from industry, domestic sewage and stormwater, represent major sources of aquatic pollution. The complex nature of these wastewaters makes assessment of their potential biological impact difficult. Whole Effluent Toxicity Testing (WETT) has been widely used overseas to assess the potential toxicity of effluents. The results of these tests can be used for a variety of functions including resource consent monitoring and compliance, toxicity identification evaluations and evaluation of effluent treatment processes.
This document provides standardised WETT protocols to meet this need. Including a set of both marine and freshwater, algal, invertebrate and fish standardised protocols for use with native New Zealand species.
Appendix 1. Marine algae (Dunaliella tertiolecta) Chronic toxicity test
Appendix 2. Marine Sand dollar Embryo (Fellaster zelandiae) Acute toxicity test
Appendix 3. Marine fish (Rhombosolea plebeia) Acute toxicity test
Appendix 4. Freshwater algae (Selenastrum capricornutum) Chronic toxicity test
Appendix 5. Freshwater cladoceran (Cerodaphnia dubia) Acute toxicity test
Appendix 6. Freshwater amphipod (Paracalliope fluviatilis) Acute toxicity test
Appendix 7. Freshwater fish (Gobiomorphus cotidianus) Acute toxicity test