Top Module Empty
PDF Print E-mail

Toxicology

We have considerable experience in the field of toxicology and with toxicity testing including experience with Whole Effluent Toxicity (WET) tests, both chronic and acute, using standard methods and guidelines such as those stipulated by the US-EPA, OECD, ISO, NIWA and ASTM. WET is a term used to describe the adverse effects or toxicity to a population of aquatic organisms caused by the exposure to effluent. WET testing assesses the combined effects of all chemical constituents of an effluent, and provides information on the toxicity of discharges to organisms in the receiving environment. Anchor Environmental is able to make use of the University of Cape TownÂ’s well equipped marine and freshwater aquariums, all of which have sophisticated environmental control mechanisms, in which to perform toxicity tests. As far as possible, all toxicity tests are conducted with local marine or estuarine species.

Toxicity tests that Anchor Environmental has conducted to date include:

Acute toxicity tests

  • Acute toxicity (96h) of effluents to fish, Psammogobius knysnaensis (Gobies) and Liza richardsonii (Mullet).
  • Acute toxicity (96h) of effluents to invertebrates, Bullia digitalis (Finger Plough shell), Diogenes brevirostris (Common Hermit Crab) and Haliotis midae (Abalone).
  • Acute toxicity (108h) of effluents to alage, Gracilaria verrucosa (Agar-weed).

Chronic toxicity tests

  • 28 day fish juvenile growth test using Liza richardsonii (Mullet).
  • 72-hour algal growth inhibition test using the algae Skeletonema costatum.
  • Sea urchin fertilization test with Tripneustes gratilla.

Projects

  • Acute toxicity of treated ballast water discharged from the Resource Ballast Technology reactor to South African marine and estuarine organisms.
  • Chronic toxicity of treated ballast water discharged from the Resource Ballast Technology reactor to South African marine organisms.

 
Joomla templates • HD wallpapers