wqx/descriptions/ToxicityTestType.json

Water Quality Exchange (WQX): JSON Schema

{
  "Acute": "The acute toxicity tests generally involve exposure of any of 20 test organisms to each of five effluent concentrations and a control water. The test duration ranges from 24 to 96 hours.",
  "Chronic": "A toxicity study designed to measure the (toxic) effects of chronic exposure to a chemical. Chronic Toxicity. Definition: The capacity of a substance to cause adverse human health effects as a result of chronic exposure. Chronic Toxicity Test is a short-term test in which sublethal effects (e.g., reduced growth or reproduction) are usually measured in addition to lethality"
}