WATER TOXICOLOGY

This level, the death of 50% individuals in 96 hours, can be measured byLC 50 value that is the concentration of toxic material in water. According to OECD chemical’s acut toxicitiy

• However toxic response is complex and predicated upon a number of biological, physical and chemical factors that are often hard to.. measure

• Although cleaning measures are nowadays taken for most large human settlements, at least in Europe, Japan, North America, and Australia, the eutrophication caused by

In these cases, organisms that are likely affected, but not conspicuous, may escape attention in the short term... An environmental toxicant can effect at

• Aquatic pollution has decreased the efficiency of photosynthesis, whereby toxicant effects on the aquatic environment facilitate climate change and ocean acidification..

The concentration of a chemical in an environment (water) which produces death in 50% of an exposed population of test organisms in a specified time.. Unit: mg

Skin Corrosion/Burns Eye Damage Corrosive to Metals Explosives Self-Reactives Organic Peroxides Flammables Pyrophorics Self-Heating. Emits Flammable Gas

• In addition, effluent from plants performing military processing (enriching) of uranium is a major source of radioactivity in water. • Abnormal occurrences, such as earthquakes