Method for estimating the toxicity of chlorinated discharges
Conference
·
OSTI ID:7356819
A recently developed procedure for site specific testing of chlorine toxicity both within a facility and its discharge is described. In order to evaluate the ecological effect of a proposed chlorination, it is necessary to know the vulnerability of fresh water organisms to chlorine exposures. Existing data regarding chlorine toxicity to freshwater organisms is presented for 64 species, of which 8 are algae, 27 are invertebrates, 28 are fish, and 1 an amphibian. The thresholds drawn indicate that for concentrations greater than 0.0015 mg/l increase in time of exposure generally increases the toxicity of chlorine. For concentrations less than 0.0015 mg/l, however, toxicity is no longer time-dependent and exposure for infinite time would not result in death. Evaluation of a given exposure to chlorine can be made by comparing a dose-time combination with the toxicity thresholds. (CH)
- Research Organization:
- Union Carbide Corp., Oak Ridge, Tenn. (USA). Nuclear Div.
- OSTI ID:
- 7356819
- Report Number(s):
- CONF-750980-1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560304 -- Chemicals Metabolism & Toxicology-- Invertebrates-- (-1987)
560305 -- Chemicals Metabolism & Toxicology-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AQUATIC ECOSYSTEMS
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
CHEMICAL EFFLUENTS
CHLORINE
ECOLOGICAL CONCENTRATION
ECOSYSTEMS
ELEMENTS
HALOGENS
MEASURING METHODS
MORTALITY
NONMETALS
RESPONSE MODIFYING FACTORS
TOXICITY
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560304 -- Chemicals Metabolism & Toxicology-- Invertebrates-- (-1987)
560305 -- Chemicals Metabolism & Toxicology-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AQUATIC ECOSYSTEMS
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
CHEMICAL EFFLUENTS
CHLORINE
ECOLOGICAL CONCENTRATION
ECOSYSTEMS
ELEMENTS
HALOGENS
MEASURING METHODS
MORTALITY
NONMETALS
RESPONSE MODIFYING FACTORS
TOXICITY