Plan of study for selected toxic substances in the Calcasieu River, Louisiana
In 1984 the US Geological Survey established the Toxic Substances Hydrology, Surface-Water Contamination Program. As part of this program, an investigation of the lower Calcasieu River, Louisiana, began in 1985 to define the magnitude and distribution of selected toxic substances in the Calcasieu River and the physical and chemical processes that govern their fate. The major elements of the investigation are: (1) a compilation of previous studies of the Calcasieu River by various Federal, State, and local agencies; (2) reconnaissance surveys of chemical constituents in the water column and bottom material; (3) a remobilization study; (4) a study of microbial degradation; (5) studies of the presence of synthetic organic compounds in the tissues of fish, clams, and crabs; (6) volatilization studies of compounds such as bromoform and chloroform; (7) sediment-water interface studies; and (8) the development of a streamflow model to provide a hydrologic framework for water quality analysis. Preliminary results were used to select for intensive study of the following substances in water, bottom material, and biota: ammonia, nitrite plus nitrate, chromium, iron, mercury, bromoform, chloroform, 1,2-dichloroethane, hexachlorobenzene, hexachlorobutadiene, naphthalene, octachloronaphthalene, benzopyrene, and benzoperylene. 11 refs., 5 figs., 5 tabs.
- OSTI ID:
- 5048662
- Resource Relation:
- Related Information: USGS Open-File Report 90-148
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
LOUISIANA
WATER POLLUTION
TOXIC MATERIALS
BIOLOGICAL ACCUMULATION
ECOLOGICAL CONCENTRATION
AMMONIA
BENZOPYRENE
BROMOFORM
CHLORINATED ALIPHATIC HYDROCARBONS
CHLORINATED AROMATIC HYDROCARBONS
CHLOROFORM
CHROMIUM
IRON
MATHEMATICAL MODELS
MERCURY
MONITORING
NAPHTHALENE
NITRATES
NITRITES
RIVERS
AROMATICS
BROMINATED ALIPHATIC HYDROCARBONS
CONDENSED AROMATICS
DEVELOPED COUNTRIES
ELEMENTS
FEDERAL REGION VI
HALOGENATED ALIPHATIC HYDROCARBONS
HALOGENATED AROMATIC HYDROCARBONS
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
MATERIALS
METALS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NORTH AMERICA
ORGANIC BROMINE COMPOUNDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION
STREAMS
SURFACE WATERS
TRANSITION ELEMENTS
USA
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)
560300 - Chemicals Metabolism & Toxicology