Accession Number:

ADA295079

Title:

Environmental Effects of Dredging: Naturally Occurring Levels of Ammonia and Sulfide in Pore Water: An Assessment of the Literature.

Descriptive Note:

Technical notes.

Corporate Author:

ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS

Personal Author(s):

Report Date:

1995-05-01

Pagination or Media Count:

11.0

Abstract:

Ammonia and sulfide are natural constituents of sediment. Both are very toxic to aquatic organisms. Consequently, their presence may bias dredged material toxicity bioassays that are designed to evaluate the toxicity of persistent contaminants such as heavy metals and petroleum and chlorinated hydrocarbons. The purpose of this technical note is to summarize published information on sediment pore water ammonia and sulfide concentrations that occur in situ. In a subsequent technical note, this exposure information will be coupled with ammonia and sulfide toxicity data to estimate the potential influence of these constituents on dredged material toxicity bioassays.

Descriptors:

• *AMMONIA
• *DREDGING
• *SULFIDES
• EXPOSURE(GENERAL)
• WATER
• TOXICITY
• ENVIRONMENTAL IMPACT
• DOCUMENTS
• AQUATIC ORGANISMS
• DREDGED MATERIALS
• SEDIMENTS
• PETROLEUM PRODUCTS
• HEAVY METALS
• BIOASSAY

Subject Categories:

• Civil Engineering
• Toxicology
• Organic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE