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bioavailability

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Journal Article
Aquatic Ecosystem Health & Management (2003) 6 (4): 391–396.
Published: 01 December 2003
... are taken into account with bioassays. However, organic matter of the sediments can modify chemical partitioning and toxicity of these non-polar organic contaminants. The purpose of this study was to assess the influence of both quality and quantity of organic matter on the bioavailability of phenanthrene...
Journal Article
Aquatic Ecosystem Health & Management (2007) 10 (1): 33–40.
Published: 01 March 2007
... subjected to quickly changing environmental conditions governed by alternating low and high tides. We studied the effects of various influencing factors, such as hydraulic regime, organic matter and salinity on metal mobility and bioavailability in the superficial calcareous intertidal sediment layer...
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Journal Article
Aquatic Ecosystem Health & Management (2004) 7 (4): 475–490.
Published: 01 October 2004
... ). Although present consideration is limited to the bioavailability of Fe in the Great Lakes, with particular focus on Lake Superior, many of the same principles and approaches can be extended to other bioactive trace metals and to other systems. In this review, we provide a discussion on the biogeochemistry...
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Journal Article
Aquatic Ecosystem Health & Management (1999) 2 (4): 403–412.
Published: 01 January 1999
...M.J. Hamer; U.M. Goggin; K. Muller; S.J. Maund Abstract The bioavailability of 14 C-lambda-cyhalothrin and its bioconcentration by larvae of the aquatic insect Chironomus riparius was studied in laboratory sediment–water systems. Ten different sediments with a range of physico-chemical...
Journal Article
Aquatic Ecosystem Health & Management (2000) 3 (1): 163–166.
Published: 01 January 2000
... was a reflection of photolytic mineralization of the material. The irradiated organic matter was added to the culture of a Vibrio strain to assess its bioavailability. Bacterial growth was enhanced with the irradiated material, which was probably due to the photolytic production of more bioavailable monomeric...
Journal Article
Aquatic Ecosystem Health & Management (2000) 3 (2): 229–234.
Published: 01 January 2000
... suggest that the health status of the Lake Baikal is good and bioavailability of toxic elements is very low. Copyright Elsevier Science Ltd and the Aquatic Ecosystem Health & Management Society 2000 Ecosystem Microelement References Bankovsky , Y.A. 1978 . “ Chemistry...
Journal Article
Aquatic Ecosystem Health & Management (2005) 8 (3): 313–322.
Published: 01 July 2005
...P. F. Silvério; A. L. Fonseca; C. M. R. Botta-Paschoal; A. A. Mozeto Bioavailability and toxicity of metals in sediment were assessed in three water bodies in the State of São Paulo, SE Brazil, in one of the first investigations of the topic in the country. Weakly bound metals in bulk sediment...
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Published: 02 April 2020
Figure 6. The bioavailability of iron using ascorbic acid (pH. 8) for the collected sand dunes from Qatar desert (source of the dust) in panel (A) and for the sediment in panel B). More
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Published: 01 July 2005
Figure 2. Concentration profiles of Cd, Cu, Cr, Pb and Zn potentially bioavailable in the total sediment of the Billings and Barra Bonita Reservoir and Diogo Lake. More
Journal Article
Aquatic Ecosystem Health & Management (2004) 7 (3): 369–374.
Published: 01 July 2004
... environment: bioavailability and realistic exposure scenarios. Too many scientists, regulators and stakeholders are, explicitly or implicitly, applying the Dictum directly, without modification. Such literal interpretations have resulted in incorrect assessment of, for instance, the risk of polyaromatic...
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Journal Article
Aquatic Ecosystem Health & Management (2006) 9 (3): 339–349.
Published: 01 September 2006
... of this study is to compare environmental risks along gradients from aquatic to terrestrial conditions. The assessment involved chemical analysis (including bioavailable fractions), as well as bioassays and bioaccumulation experiments using aquatic and terrestrial organisms. The results demonstrate...
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Journal Article
Aquatic Ecosystem Health & Management (1999) 2 (1): 9–18.
Published: 01 January 1999
..., however, fewer effects were found in field surveys and bioassays, while the chemical analyses revealed the same levels of pollution as in the lakes study. This suggests a lower bioavailability of the contaminants than expected. In conclusion, no extreme effects have been found. This conclusion only partly...
Journal Article
Aquatic Ecosystem Health & Management (1999) 2 (1): 1–8.
Published: 01 January 1999
... and bioavailability factors have allowed ecotoxicologists to better define contaminant exposures. These advances, when integrated with more traditional approaches (e.g. standardized laboratory toxicity testing, population/community structure characterization) can provide meaningful assessments of ecosystem...
Journal Article
Aquatic Ecosystem Health & Management (2004) 7 (3): 387–397.
Published: 01 July 2004
...J. M. Conder; G. R. Lotufo; A. T. Bowen; P. K. Turner; T. W. La Point; J. A. Steevens Solid phase microextraction fibers are useful for investigating bioavailable organic contaminants in complex environmental matrixes such as aquatic sediments. Solid phase microextraction fibers are polymer-coated...
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Journal Article
Aquatic Ecosystem Health & Management (2005) 8 (4): 451–460.
Published: 01 October 2005
... of micropollutants (such as metals) present in the environment, it is necessary to know their bioavailability to aquatic organisms. The bioavailability of dissolved and sediment-bound metals is determined by the physical, chemical and biological characteristics of the overlying and interstitial water...
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Published: 01 September 2006
OC) or the bioavailable fraction (bottom graphs: Cd: CaCl 2 -extractable fractions, logarithmic scale; PCB: Tenax-extractable fraction). Limnodrilus sp. was exposed to aquatic samples from location S1-3 and G1-3, Lumbricus rubellus was exposed to terrestrial samples S3-5 and G3-5. More
Journal Article
Aquatic Ecosystem Health & Management (2012) 15 (sup1): 33–40.
Published: 01 January 2012
... sewage waste discharge organic content bioavailability marine pollution The speciation of metals in sediments is important in understanding the proportion of metals that are potentially bioavailable, mobile and can be transported through the aquatic food chain, and their degree of persistence...
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Journal Article
Aquatic Ecosystem Health & Management (2007) 10 (1): 101–106.
Published: 01 March 2007
... that there is no effect by the key variables in estuaries such as pH and especially salinity values. A battery of sediment toxicity tests was therefore performed in order to address the influence of these variables in the bioavailability of the contaminants predominant in the area ( Riba et al., 2004a , b...
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Journal Article
Aquatic Ecosystem Health & Management (2008) 11 (4): 432–440.
Published: 09 December 2008
... benthic organisms, while the worm is obligate. Such way of life differences may have modified the bioavailability of contaminants, determining their toxicity. Copyright © AEHMS 2008 zinc toxicity number of species influence acute toxicity sublethal toxicity lipid peroxidation level protein...
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Journal Article
Aquatic Ecosystem Health & Management (2012) 15 (2): 185–191.
Published: 01 April 2012
... be partly due to its different distribution characteristics and chemical behaviors. Pb is supplied to the aquatic system mainly in the form of air deposition with high bioavailability in the water column (Ip et al., 2005); Cu, Zn and Cd entered the aquatic system mainly through sewage, industry waste...
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