FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2003357475> ?p ?o ?g. }

• W2003357475 endingPage "179" @default.
• W2003357475 startingPage "163" @default.
• W2003357475 abstract "Although generally rare in natural aquatic systems, cobalt concentrations can be elevated through ore and coal mining operations and discharges of certain textile dyes. The U.S. Environmental Protection Agency does not have an ambient water quality criterion for cobalt due to a lack of toxicological data. The present study determined whether freshwater acute and chronic cobalt toxicity were dependent on dilution water hardness. We specifically examined the relative toxicity of cobalt at high water hardness (≥ 200 mg/l as CaCO3) because cobalt often occurs in carbonate ores. Acute and chronic toxicity tests using both Ceriodaphnia dubia and Pimephales promelas were performed using four different synthetic waters: 50,200. 400, and 800 mg/l hardness as CaCO3. Diluent hardness appeared to have no effect on measured cobalt concentrations. Dissolved cobalt in water samples during testing was similar to the corresponding total recoverable cobalt in this study suggesting that most of the cobalt was in a soluble and presumably bioavailable form. LC50 values for P. promelas could not be calculated owing to their low sensitivity to high cobalt concentrations (≥ 5 mg/l) over a 48 h period. Regression analysis of P. promelas acute NOEC values and test water hardness indicated an R2 = 0.94 suggesting a direct relationship between water hardness and acute toxicity to cobalt for this species. C. dubia acute tests indicated water hardness effects after 48 h of exposure and non-linear dose responses in hard water (≥ 200 mg/l). Regression analysis of C. dubia 24 h LC50 values and test water hardness indicated an R2 = 0.91. For both cases, a simple power function gave the best regression fit. C. dubia appeared to be more sensitive than P. promelas at hardness ≥ 200 mg/l but the reverse was true in soft water ( ≤ 50 mg/l). The 7 d P. promelas chronic NOEC increased from 1232 μg/l cobalt (50 mg/l hardness) to ≥ 3833 μg/l (800 mg/l hardness). Effects were on fish survival and not growth. Regression analysis yielded an R2 = 0.97 based on the fish survival NOECs and the natural log of hardness. C. dubia chronic tests were inconclusive due to poor survival and reproduction in the synthetic waters. Available data suggest that within 50–200 mg/l water hardness, cobalt acute toxicily is inversely related to water hardness. Tentative cobalt acute criteria, based on power functions, are 288 μg/l and 873 μg/l for soft and hard water, respectively. Available chronic toxicity data suggest that daphnids are more sensitive to cobalt than other genera. Chronic endpoints for both P. promelus and D. magna were similar in soft and hard water (≤ 400 mg/l hardness) suggesting that chronic toxicity is not hardness-dependent over this range. However, chronic cndpoints at 800 mg/l hardness were 3.1 and ≥ 12 times higher than endpoints observed under soft water conditions for P. promelas and C. dubia respectively suggesting that very hard waters may significantly reduce chronic toxicity potential of cobalt." @default.
• W2003357475 created "2016-06-24" @default.
• W2003357475 creator A5004440151 @default.
• W2003357475 creator A5041025387 @default.
• W2003357475 creator A5045133942 @default.
• W2003357475 creator A5046678293 @default.
• W2003357475 creator A5063877834 @default.
• W2003357475 creator A5069728882 @default.
• W2003357475 date "1992-05-01" @default.
• W2003357475 modified "2023-09-26" @default.
• W2003357475 title "Toxicity of cobalt to freshwater indicator species as a function of water hardness" @default.
• W2003357475 cites W1965318500 @default.
• W2003357475 cites W2007778094 @default.
• W2003357475 cites W2015470786 @default.
• W2003357475 cites W2067692586 @default.
• W2003357475 cites W2077003096 @default.
• W2003357475 doi "https://doi.org/10.1016/0166-445x(92)90038-o" @default.
• W2003357475 hasPublicationYear "1992" @default.
• W2003357475 type Work @default.
• W2003357475 sameAs 2003357475 @default.
• W2003357475 citedByCount "44" @default.
• W2003357475 countsByYear W20033574752012 @default.
• W2003357475 countsByYear W20033574752013 @default.
• W2003357475 countsByYear W20033574752014 @default.
• W2003357475 countsByYear W20033574752015 @default.
• W2003357475 countsByYear W20033574752017 @default.
• W2003357475 countsByYear W20033574752018 @default.
• W2003357475 countsByYear W20033574752019 @default.
• W2003357475 countsByYear W20033574752020 @default.
• W2003357475 countsByYear W20033574752023 @default.
• W2003357475 crossrefType "journal-article" @default.
• W2003357475 hasAuthorship W2003357475A5004440151 @default.
• W2003357475 hasAuthorship W2003357475A5041025387 @default.
• W2003357475 hasAuthorship W2003357475A5045133942 @default.
• W2003357475 hasAuthorship W2003357475A5046678293 @default.
• W2003357475 hasAuthorship W2003357475A5063877834 @default.
• W2003357475 hasAuthorship W2003357475A5069728882 @default.
• W2003357475 hasConcept C107872376 @default.
• W2003357475 hasConcept C116263406 @default.
• W2003357475 hasConcept C13965031 @default.
• W2003357475 hasConcept C151867941 @default.
• W2003357475 hasConcept C178790620 @default.
• W2003357475 hasConcept C179104552 @default.
• W2003357475 hasConcept C185592680 @default.
• W2003357475 hasConcept C18903297 @default.
• W2003357475 hasConcept C2776185860 @default.
• W2003357475 hasConcept C2780797713 @default.
• W2003357475 hasConcept C2781325057 @default.
• W2003357475 hasConcept C29730261 @default.
• W2003357475 hasConcept C33070731 @default.
• W2003357475 hasConcept C515602321 @default.
• W2003357475 hasConcept C53164099 @default.
• W2003357475 hasConcept C86803240 @default.
• W2003357475 hasConceptScore W2003357475C107872376 @default.
• W2003357475 hasConceptScore W2003357475C116263406 @default.
• W2003357475 hasConceptScore W2003357475C13965031 @default.
• W2003357475 hasConceptScore W2003357475C151867941 @default.
• W2003357475 hasConceptScore W2003357475C178790620 @default.
• W2003357475 hasConceptScore W2003357475C179104552 @default.
• W2003357475 hasConceptScore W2003357475C185592680 @default.
• W2003357475 hasConceptScore W2003357475C18903297 @default.
• W2003357475 hasConceptScore W2003357475C2776185860 @default.
• W2003357475 hasConceptScore W2003357475C2780797713 @default.
• W2003357475 hasConceptScore W2003357475C2781325057 @default.
• W2003357475 hasConceptScore W2003357475C29730261 @default.
• W2003357475 hasConceptScore W2003357475C33070731 @default.
• W2003357475 hasConceptScore W2003357475C515602321 @default.
• W2003357475 hasConceptScore W2003357475C53164099 @default.
• W2003357475 hasConceptScore W2003357475C86803240 @default.
• W2003357475 hasIssue "3" @default.
• W2003357475 hasLocation W20033574751 @default.
• W2003357475 hasOpenAccess W2003357475 @default.
• W2003357475 hasPrimaryLocation W20033574751 @default.
• W2003357475 hasRelatedWork W1992467200 @default.
• W2003357475 hasRelatedWork W2003357475 @default.
• W2003357475 hasRelatedWork W2025212689 @default.
• W2003357475 hasRelatedWork W2029588334 @default.
• W2003357475 hasRelatedWork W2093772806 @default.
• W2003357475 hasRelatedWork W2095009751 @default.
• W2003357475 hasRelatedWork W2106611341 @default.
• W2003357475 hasRelatedWork W2601920623 @default.
• W2003357475 hasRelatedWork W3158767652 @default.
• W2003357475 hasRelatedWork W3178800456 @default.
• W2003357475 hasVolume "22" @default.
• W2003357475 isParatext "false" @default.
• W2003357475 isRetracted "false" @default.
• W2003357475 magId "2003357475" @default.
• W2003357475 workType "article" @default.