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Title: Chemistry and phytotoxicity of arsenic in soils. II. Effects of time and phosphorus

Abstract

Arsenate from sodium arsenate changes to less soluble compounds in soils with time. To study these changes, the arsenic soluble in 1N NH/sub 4/Cl, 0.5N NH/sub 4/F, 0.1N NaOH, and 0.5N H/sub 2/SO/sub 4/ solutions was determined. These dissolved arsenates, were designated as WS-As (water soluble, Al-As, Fe-As, or Ca-As, respectively. The percent of WS-As present was proportional to As added and inversely proportional to time, and to the Fe and Al content. Fe-As was the predominant form of As in Hagerstown silty clay loam while Al-As predominated in Lakeland loamy sand. Growth of corn (Zea mays) increased with increase in time of As incubation in the soil before planting. Arsenic phytotoxicity and As in the plant were altered by P additions. Arsenic residues in the Lakeland soil became more phytotoxic, while residues in the Hagerstown soil became less phytotoxic with P additions. This plant response was related to the availability of As and P in these soils. Leaching with 0.05 M KH/sub 2/PO/sub 4/ removed 77% of the total As from a contaminated Dunkirk fine sand. The distribution of the forms of As in this soil changed during leaching. 26 references, 3 figures, 4 tables.

Authors:
; ;
Research Org.:
Dept. of Agriculture, Beltsville, MD
OSTI Identifier:
5129238
Resource Type:
Journal Article
Journal Name:
Soil Sci. Soc. Am., Proc.; (United States)
Additional Journal Information:
Journal Volume: 37:2
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; ARSENIC; SOIL CHEMISTRY; TOXICITY; PHOSPHORUS; BIOLOGICAL EFFECTS; ALUMINIUM; BIOLOGICAL AVAILABILITY; EXPERIMENTAL DATA; IRON; LEACHING; MAIZE; PLANT GROWTH; RESIDUES; RESPONSE MODIFYING FACTORS; SOILS; SOLVENT PROPERTIES; CEREALS; CHEMISTRY; DATA; DISSOLUTION; ELEMENTS; GRASS; GROWTH; INFORMATION; METALS; NONMETALS; NUMERICAL DATA; PLANTS; SEMIMETALS; SEPARATION PROCESSES; TRANSITION ELEMENTS; 510200* - Environment, Terrestrial- Chemicals Monitoring & Transport- (-1989); 560303 - Chemicals Metabolism & Toxicology- Plants- (-1987)

Citation Formats

Woolson, E A, Axley, J H, and Kearney, P C. Chemistry and phytotoxicity of arsenic in soils. II. Effects of time and phosphorus. United States: N. p., Web.
Woolson, E A, Axley, J H, & Kearney, P C. Chemistry and phytotoxicity of arsenic in soils. II. Effects of time and phosphorus. United States.
Woolson, E A, Axley, J H, and Kearney, P C. . "Chemistry and phytotoxicity of arsenic in soils. II. Effects of time and phosphorus". United States.
@article{osti_5129238,
title = {Chemistry and phytotoxicity of arsenic in soils. II. Effects of time and phosphorus},
author = {Woolson, E A and Axley, J H and Kearney, P C},
abstractNote = {Arsenate from sodium arsenate changes to less soluble compounds in soils with time. To study these changes, the arsenic soluble in 1N NH/sub 4/Cl, 0.5N NH/sub 4/F, 0.1N NaOH, and 0.5N H/sub 2/SO/sub 4/ solutions was determined. These dissolved arsenates, were designated as WS-As (water soluble, Al-As, Fe-As, or Ca-As, respectively. The percent of WS-As present was proportional to As added and inversely proportional to time, and to the Fe and Al content. Fe-As was the predominant form of As in Hagerstown silty clay loam while Al-As predominated in Lakeland loamy sand. Growth of corn (Zea mays) increased with increase in time of As incubation in the soil before planting. Arsenic phytotoxicity and As in the plant were altered by P additions. Arsenic residues in the Lakeland soil became more phytotoxic, while residues in the Hagerstown soil became less phytotoxic with P additions. This plant response was related to the availability of As and P in these soils. Leaching with 0.05 M KH/sub 2/PO/sub 4/ removed 77% of the total As from a contaminated Dunkirk fine sand. The distribution of the forms of As in this soil changed during leaching. 26 references, 3 figures, 4 tables.},
doi = {},
url = {https://www.osti.gov/biblio/5129238}, journal = {Soil Sci. Soc. Am., Proc.; (United States)},
number = ,
volume = 37:2,
place = {United States},
year = {},
month = {}
}