Effects assessment: Boron compounds in the aquatic environment

Schoderboeck, Lucia; Mühlegger, Simone; Losert, Annemarie; Gausterer, Christian; Hornek, Romana

doi:10.1016/j.chemosphere.2010.10.031

Cited by 63 publications

(22 citation statements)

References 16 publications

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“…The main sources of boron and its compounds are the weathering of clay sedimentary soils and volcanic activity (Nable et al 1997;Polat et al 2004). They are used for many different purposes in various products such as cleaners, detergents, personal care products, the manufacturing of ceramic, processes of metallurgy, glass and glass fibres, adhesives and industrial fluids (Schoderboeck et al 2011). Boron is soluble in water and may cause toxic effects in aquatic animals.…”

Section: Introductionmentioning

confidence: 99%

“…Boron is soluble in water and may cause toxic effects in aquatic animals. Fish are more sensitive than aquatic invertebrates to boron exposure during chronic exposures (Birge & Black 1977;Schoderboeck et al 2011). The fish LC50 values (3.63 to >1000 mg B/L) show high variation due to test cases, life stages, fish size, fish species and test duration (Schoderboeck et al 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Fish are more sensitive than aquatic invertebrates to boron exposure during chronic exposures (Birge & Black 1977;Schoderboeck et al 2011). The fish LC50 values (3.63 to >1000 mg B/L) show high variation due to test cases, life stages, fish size, fish species and test duration (Schoderboeck et al 2011). The 96-h LC50 value of boron for rainbow trout is up to 1100 mg B/L (USEPA, Office of Prevention, Pesticides and Toxic Substances 1993b), but it has been reported that the LC50 value of boric acid (BA) is determined to be 138 mg/L and the lowest observed effect concentrations (LOECs) for rainbow trout are 0.10 mg/L (Loewengart 2001).…”

Section: Introductionmentioning

confidence: 99%

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The effects of acute boric acid treatment on gill, kidney and muscle tissues in juvenile rainbow trout

Topal

Oruç

Altun

et al. 2015

Journal of Applied Animal Research

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Boric acid (BA) is an essential nutrient for plants and many organisms, but it has become an environmental contaminant because of widespread use. Pesticide and its compounds are a serious threat to aquatic organisms. This study was carried out to determine the histopathological effects of acute exposure to BA concentrations in rainbow trout. The fish were exposed to 10 2 and 10 3 mg/L concentrations of BA. Tissues were sampled at 6, 12, 24, 48 and 96 h. Histopathological alterations occurring in tissues were common in both doses of BA. Gill tissues showed lamellar oedema, cellulary infiltration, lamellar disorganization, degenerative changes and lamellar thickening. Kidneys had glomerular oedema and glomerulonephritis, degeneration of the tubulary epithelium, interstitial fibrosis and a hyaline cast within the tubular lumens. Muscle tissues displayed interstitial oedema and degenerative and atrophic changes to varying degrees in the myofibrils. Our study shows that BA can be toxic for rainbow trout and cause histopathological damage in fish tissue.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The effects of acute boric acid treatment on gill, kidney and muscle tissues in juvenile rainbow trout

Topal

Oruç

Altun

et al. 2015

Journal of Applied Animal Research

View full text Add to dashboard Cite

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“…The LC50 for our winter stonefly was 476 mg/L, and using the ACRs generated with the fish and amphipod tests in the present study, a potential chronic value for this species would be 41 to 95 mg/L, making this aquatic insect less chronically sensitive than the amphipod and fish we tested. However, given the above-mentioned range of sensitivities exhibited by terrestrial insects exposed to B [29], further testing with aquatic insects is warranted.…”

Section: Discussionmentioning

confidence: 96%

“…Schoderboeck et al [29] included chronic toxicity data for two terrestrial insects in a species sensitivity distribution analysis to determine safe boron concentrations for aquatic species, with chronic (NOAEC) values of 100 and 5.7 mg/L. These were dietary uptake studies, however, and may not be appropriate for use in water quality standards for the protection of aquatic life.…”

Section: Discussionmentioning

confidence: 98%

Acute and chronic toxicity of boron to a variety of freshwater organisms

Soucek

Dickinson

Koch

2011

Enviro Toxic and Chemistry

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Boron enters the aquatic environment from various sources, including weathering of borates, sewage effluents, coal combustion, use of cleaning compounds, and agrochemicals. The present study was designed to generate data on acute and chronic boron toxicity in support of an update of water quality standards in Illinois, USA. We examined the acute toxicity of boron to eight different freshwater organisms including a fish, an insect, two crustaceans, and four bivalve mollusks. To our knowledge, this is the first study to present data on the toxicity of boron to freshwater mollusks. We also sought to clarify whether hardness or pH affect boron toxicity to aquatic life, and to quantify chronic effect levels in two freshwater species. Sensitivity among the various species ranged widely, with the fathead minnow (Pimephales promelas) being the most sensitive. Neither pH nor hardness had a consistent effect on acute boron toxicity to two crustaceans (Ceriodaphnia dubia and Hyalella azteca), but we observed evidence that chloride reduces boron toxicity to H. azteca. The fathead minnow, while more acutely sensitive than the other species, had a lower acute to chronic ratio than did H. azteca, which had reduced reproduction at 13 mg/L. While we do not know the extent to which the eight tested species represent the range of sensitivities of native but untested species in Illinois, the current water quality standard for Illinois (1 mg/L) is conservative with regard to the native species tested thus far.

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Thirty years of Thiel embalming—A systematic review on its utility in medical research

Hammer

2022

Clinical Anatomy

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In 1992, Walter Thiel described and embalming method that rendered "lifelike" tissues. Over the last 30 years, the Thiel method has been introduced worldwide for medical training and scientific purposes. This review examines research which can be linked to the use of Thiel embalming. A systematic review was performed to identify articles published in the following categories: research content, disciplines involved, sources and quantities of tissues deployed, and changes in research scope related to changes in the chemical composition of Thiel embalming. Four-hundred twenty-four publications were included. A number of adaptations to the original Thiel protocol were found, aiming to provide suitable tissue-substitutes in the development of emerging medical technologies or procedures. Musculoskeletal surgery, anesthesia and intensive care were the most common disciplines that used Thiel embalmed tissues for research. Anatomy and biomechanics played a lesser role. An increase over time was observed in research outputs related to the Thiel method, while the number of specimens used per study decreased. The main centers using Thiel embalming were in Graz, Dundee, Sapporo, Bern, Zurich and Ghent, which jointly accounted for more than 54% of all research conducted using this method. Following three decades of use, the Thiel method has evolved into being a well-established embalming technique for research purposes. Its future is challenged by the demanding requirements on both technical facilities and personnel, limitations of certain chemicals for use as fixatives, costs, and questions as to how "lifelike" the embalmed-tissues are from an objective standpoint, all of which warrants future investigations.

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Effects assessment: Boron compounds in the aquatic environment

Cited by 63 publications

References 16 publications

The effects of acute boric acid treatment on gill, kidney and muscle tissues in juvenile rainbow trout

The effects of acute boric acid treatment on gill, kidney and muscle tissues in juvenile rainbow trout

Acute and chronic toxicity of boron to a variety of freshwater organisms

Thirty years of Thiel embalming—A systematic review on its utility in medical research

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