Fractional Water-Sediment Sampler
نویسندگان
چکیده
منابع مشابه
Rhizon sampler alteration of deep ocean sediment interstitial water samples, as indicated by chloride concentration and oxygen and hydrogen isotopes
Despite their potential to inform past ocean salinity, dO, and temperature, high-resolution depth profiles of interstitial water chloride concentration and hydrogen and oxygen isotopes exist in very few locations. One of the primary limitations to the recovery of these depth profiles is that traditional interstitial water sampling requires 5–10 cm whole rounds of the sediment core, which has th...
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Sediment-quality assessment often is hindered by the lack of agreement between chemical and biological lines of evidence. One limitation is that the bulk sediment toxicant concentration, the most widely used chemical parameter, does not always represent the bioavailable concentration, particularly for hydrophobic organic compounds (HOCs) in highly contaminated sediments. In the present study, w...
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Surface water and sediment on and near the Hanford Site are monitored to determine the potential impacts of Hanford-originated radiological and chemical contaminants to the public and to the aquatic environment. Surfacewater bodies included in routine surveillance are the Columbia River, riverbank springs, onsite ponds, and irrigation water at the Riverview irrigation canal. Sediment surveillan...
متن کاملHigh-resolution pore-water sampling with a gel sampler
Sediment pore-water profiles were sampled at high resolution (millimeter scale) with a polyacrylamide gel probe. This simple procedure involves inserting a l-mm-thick gel held in a plastic probe into sediment. The gel reaches diffusive equilibrium in < l-2 h. For anions, the gel was sectioned, back-equilibrated into distilled-deionized water, and anions determined by high-performance liquid chr...
متن کاملA high - resolution pore water sampler for sandy sediments
In this paper, we present a new technique for collecting pore-water samples in coarseto fine-grained sandy sediments. We have used the technique both for in situ sampling and for pore-water extraction from sediment cores brought back to the laboratory, in both cases with a depth resolution as fine as 1 cm. The key device is a long, thin (;2 mm) stainless steel tube with a specially designed tip...
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ژورنال
عنوان ژورنال: Soil Science Society of America Journal
سال: 1972
ISSN: 0361-5995
DOI: 10.2136/sssaj1972.03615995003600020045x