Movement and dissipation of toxicants and water in natural soil environments
Technical Report
·
OSTI ID:6777092
Movement and dissipation of three 14C-labeled herbicides (atrazine, metolachlor, primisulfuron), tritium, water, bromide and nitrate was investigated in natural Dothan loamy sand soil cores in the field using 20 cm i.d. by 90 cm long steel column lysimeters. Half-life values for the herbicides ranged from 3 to 6 days in the field lysimeters to 14 to 49 days in laboratory flasks. Several acrylic polymers reduced losses and mobility of metolachlor and primisulfuron but none were effective on atrazine. None of the polymers reduced bioactivity of the compounds. Sorption of metolachlor by samples from different soil depths was highly correlated with organic carbon content of the soil. Soil column lysimeters proved to be useful in carrying out material balance studies on the movement and dissipation of chemicals in natural cores of Dothan loamy sand in the field.
- Research Organization:
- North Carolina State Univ., Raleigh, NC (United States)
- OSTI ID:
- 6777092
- Report Number(s):
- PB-93-173037/XAB; CNN: DI-14-08-0001-G1740
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIODEGRADATION
BROMIDES
BROMINE COMPOUNDS
CARBON ISOTOPES
CHEMICAL REACTIONS
DAYS LIVING RADIOISOTOPES
DECOMPOSITION
ENVIRONMENTAL TRANSPORT
FIELD TESTS
HALF-LIFE
HALIDES
HALOGEN COMPOUNDS
HAZARDOUS MATERIALS
HERBICIDES
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
LOSSES
LYSIMETERS
MASS TRANSFER
MATERIAL BALANCE
MATERIALS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MOBILITY
NITRATES
NITROGEN COMPOUNDS
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PESTICIDES
POLYMERS
RADIOISOTOPES
SAND
SOILS
SORPTION
TESTING
TOXIC MATERIALS
TRITIUM
WATER
YEARS LIVING RADIOISOTOPES
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIODEGRADATION
BROMIDES
BROMINE COMPOUNDS
CARBON ISOTOPES
CHEMICAL REACTIONS
DAYS LIVING RADIOISOTOPES
DECOMPOSITION
ENVIRONMENTAL TRANSPORT
FIELD TESTS
HALF-LIFE
HALIDES
HALOGEN COMPOUNDS
HAZARDOUS MATERIALS
HERBICIDES
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
LOSSES
LYSIMETERS
MASS TRANSFER
MATERIAL BALANCE
MATERIALS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MOBILITY
NITRATES
NITROGEN COMPOUNDS
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PESTICIDES
POLYMERS
RADIOISOTOPES
SAND
SOILS
SORPTION
TESTING
TOXIC MATERIALS
TRITIUM
WATER
YEARS LIVING RADIOISOTOPES