Draft analytical method for determination of acid volatile sulfide in sediment. Determination of acid volatile sulfide and selected simultaneously extractable metals in sediment

Technical Report · Sun Dec 01 04:00:00 EST 1991

OSTI ID:6663870

Allen, H E; Fu, G; Boothman, W; Di Toro, D M; Mahony, J D

The method describes procedures for the determination of acid volatile sulfide (AVS) and for selected metals that are solubilized during the acidification step (simultaneously extracted metal, SEM). As a precipitant of toxic heavy metals, sulfide is important in controlling the bioavailability of metals in anoxic sediments. Research has established that the relative amounts of SEM and AVS are important in the prediction of potential metal bioavailability, if the molar ratio of SEM for bivalent metals to AVS exceeds one, the toxic heavy metals in that sample are potentially bioavailable. The method uses the same conditions for release of both sulfide and metal from the sediment and thus provides a useful means of assessing the amount of metal associated with sulfide.

• Research Organization: Environmental Protection Agency, Narragansett, RI (United States). Environmental Research Lab.
• OSTI ID: 6663870
• Report Number(s): PB-93-155901/XAB
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
540320 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
ABSTRACTS
ACIDIFICATION
BIOLOGICAL EFFECTS
CHALCOGENIDES
CHEMICAL ANALYSIS
DESIGN
DETECTION
DOCUMENT TYPES
ELEMENTS
EQUIPMENT
EXTRACTION
INTERFACES
LABORATORY EQUIPMENT
LEADING ABSTRACT
METALS
POLLUTION
SEDIMENT-WATER INTERFACES
SEDIMENTS
SEPARATION PROCESSES
SOLUBILITY
STANDARDS
SULFIDES
SULFUR COMPOUNDS
TOXICITY
WATER POLLUTION