Plant uptake and soil retention of phthalic acid applied to Norfolk sandy loam

Journal Article · Tue Jan 01 04:00:00 EST 1985 · J. Agric. Food Chem.; (United States)

DOI:https://doi.org/10.1021/jf00063a019· OSTI ID:6384764

Dorney, J R; Weber, J B; Overcash, M R; Strek, H J

Plant uptake and soil retention of /sup 14/C carboxyl-labeled phthalic acid were studied at application rates of 0.6, 6.0, 60.0, and 600.0 ppm (soil dry weight) to Norfolk sandy loam (Typic Paleudult, fine loamy, kaolinitic, thermic). Height and dry weight of corn (Zea mays L. Pioneer 3368A) (21 day), tall fescue (Festuca arundinacea Schreb. Kentucky 31) (45 day) immature soybean (Glycine max (L.) Merr. Altoona) (21 day) plant, mature soybean plant, and mature wheat (Triticum aestivum L. Butte) straw were not affected by phthalic acid applied to soil. In addition, soybean seed and wheat seed dry weight were unaffected. Immature wheat (40 day) height decreased at the 600 ppm rate. Plant uptake of phthalic acid ranged from 0 to 23 ppm and was significantly above background for all plants and plant materials except soybean pods. Fescue and immature plants exhibited the highest concentration of phthalic acid while mature wheat plants and wheat seeds exhibited the least. Most of the phthalic acid volatilized or was decomposed from the soil by the end of the study; an average of only 5.7% of the originally applied chemical was recovered in both soil or plants. An average of 0.02% of the originally applied phthalic acid leached out of the treated zone. Considering the low toxicity of phthalic acid and its relatively rapid disappearance from soil, it is unlikely to become a health hazard from contaminated plants. However, plant uptake of other toxic organics could potentially become a hazard on soils treated with sludge containing significant quantities of these substances.

• Research Organization: North Carolina State Univ., Raleigh
• OSTI ID: 6384764
• Journal Information: J. Agric. Food Chem.; (United States), Journal Name: J. Agric. Food Chem.; (United States) Vol. 33:3; ISSN JAFCA
• Country of Publication: United States
• Language: English

Related Subjects

553001 -- Agriculture & Food Technology-- Tracer Techniques-- (-1987)
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
60 APPLIED LIFE SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BACTERIA
CARBON 14 COMPOUNDS
CARBOXYLIC ACIDS
CEREALS
CHEMISTRY
DICARBOXYLIC ACIDS
DISSOLUTION
EVAPORATION
GLYCINE HISPIDA
GRASS
GROWTH
ISOTOPE APPLICATIONS
LABELLED COMPOUNDS
LEACHING
LEGUMINOSAE
MAIZE
MICROORGANISMS
ORGANIC ACIDS
ORGANIC COMPOUNDS
PHASE TRANSFORMATIONS
PHTHALIC ACID
PLANT GROWTH
PLANTS
RETENTION
RHIZOBIUM
SEPARATION PROCESSES
SEWAGE
SEWAGE SLUDGE
SLUDGES
SOIL CHEMISTRY
SOILS
TOXICITY
TRACER TECHNIQUES
UPTAKE
WASTES
WHEAT