Matches in SemOpenAlex for { <https://semopenalex.org/work/W4220740510> ?p ?o ?g. }
- W4220740510 endingPage "291" @default.
- W4220740510 startingPage "273" @default.
- W4220740510 abstract "Many parameters are usually used as gauges to describe water quality worldwide, such as the concentrations of phosphorus, forms of nitrogen, dissolved oxygen (DO), among others. Though legislative limits for the concentrations of these substances are in place, such is not the case for caffeine. Caffeine is a pharmacologically active alkaloid, from the xanthine group, which can be used as a chemical tracer for anthropic influence over water resources. The objective of this study was to analyze the pollution indicators over the Igua?u River, one of the main rivers in Southern Brazil, through the examination of nutrients, DO and their correlations to caffeine. The water samples were collected from 10 sampling sites along the river course, unevenly spaced to better represent the different environmental scenarios present in its basin, extracted from 2014 to 2017. Caffeine was detected and quantified through high-efficiency liquid state chromatography. Results show that both nutrient and caffeine concentrations increased in intensely urbanized areas, specially from IG2 to IG5 sampling sites. Downstream from IG6 the contaminant concentrations decreased mainly due to higher river flows and lower population density. Caffeine was detected in 82% of the samples, indicating that most of the sampling sites were under anthropic influence." @default.
- W4220740510 created "2022-04-03" @default.
- W4220740510 creator A5006396265 @default.
- W4220740510 creator A5009149580 @default.
- W4220740510 creator A5010286111 @default.
- W4220740510 creator A5010608290 @default.
- W4220740510 creator A5031805615 @default.
- W4220740510 creator A5088843120 @default.
- W4220740510 date "2022-01-01" @default.
- W4220740510 modified "2023-09-30" @default.
- W4220740510 title "Use of Caffeine for the Evaluation of the Anthropic Influence over the Upper and Middle Igua&ccedil;u River Basins" @default.
- W4220740510 cites W1966018446 @default.
- W4220740510 cites W1974919494 @default.
- W4220740510 cites W1981531781 @default.
- W4220740510 cites W1983215781 @default.
- W4220740510 cites W1987606325 @default.
- W4220740510 cites W2006770593 @default.
- W4220740510 cites W2054232385 @default.
- W4220740510 cites W2075094290 @default.
- W4220740510 cites W2096035960 @default.
- W4220740510 cites W2126228986 @default.
- W4220740510 cites W2208815562 @default.
- W4220740510 cites W2220514273 @default.
- W4220740510 cites W2344725300 @default.
- W4220740510 cites W2399431026 @default.
- W4220740510 cites W2409338286 @default.
- W4220740510 cites W2462331278 @default.
- W4220740510 cites W2463780555 @default.
- W4220740510 cites W2467737445 @default.
- W4220740510 cites W2467933501 @default.
- W4220740510 cites W2508343127 @default.
- W4220740510 cites W2562578972 @default.
- W4220740510 cites W2587954115 @default.
- W4220740510 cites W2613274602 @default.
- W4220740510 cites W2616221943 @default.
- W4220740510 cites W2706464883 @default.
- W4220740510 cites W2751117326 @default.
- W4220740510 cites W2761850504 @default.
- W4220740510 cites W2781055474 @default.
- W4220740510 cites W2810751079 @default.
- W4220740510 cites W2811202772 @default.
- W4220740510 cites W2897550730 @default.
- W4220740510 cites W2905355386 @default.
- W4220740510 cites W2952498513 @default.
- W4220740510 cites W2952518306 @default.
- W4220740510 cites W2954040818 @default.
- W4220740510 cites W2957792180 @default.
- W4220740510 doi "https://doi.org/10.4236/jwarp.2022.143013" @default.
- W4220740510 hasPublicationYear "2022" @default.
- W4220740510 type Work @default.
- W4220740510 citedByCount "0" @default.
- W4220740510 crossrefType "journal-article" @default.
- W4220740510 hasAuthorship W4220740510A5006396265 @default.
- W4220740510 hasAuthorship W4220740510A5009149580 @default.
- W4220740510 hasAuthorship W4220740510A5010286111 @default.
- W4220740510 hasAuthorship W4220740510A5010608290 @default.
- W4220740510 hasAuthorship W4220740510A5031805615 @default.
- W4220740510 hasAuthorship W4220740510A5088843120 @default.
- W4220740510 hasBestOaLocation W42207405101 @default.
- W4220740510 hasConcept C106131492 @default.
- W4220740510 hasConcept C107872376 @default.
- W4220740510 hasConcept C126645576 @default.
- W4220740510 hasConcept C127313418 @default.
- W4220740510 hasConcept C134018914 @default.
- W4220740510 hasConcept C140779682 @default.
- W4220740510 hasConcept C142796444 @default.
- W4220740510 hasConcept C144024400 @default.
- W4220740510 hasConcept C149923435 @default.
- W4220740510 hasConcept C178790620 @default.
- W4220740510 hasConcept C181199279 @default.
- W4220740510 hasConcept C185592680 @default.
- W4220740510 hasConcept C187320778 @default.
- W4220740510 hasConcept C18903297 @default.
- W4220740510 hasConcept C205649164 @default.
- W4220740510 hasConcept C2778500429 @default.
- W4220740510 hasConcept C2779470414 @default.
- W4220740510 hasConcept C2780797713 @default.
- W4220740510 hasConcept C2908647359 @default.
- W4220740510 hasConcept C31972630 @default.
- W4220740510 hasConcept C39432304 @default.
- W4220740510 hasConcept C41008148 @default.
- W4220740510 hasConcept C521259446 @default.
- W4220740510 hasConcept C55493867 @default.
- W4220740510 hasConcept C58640448 @default.
- W4220740510 hasConcept C76886044 @default.
- W4220740510 hasConcept C86803240 @default.
- W4220740510 hasConceptScore W4220740510C106131492 @default.
- W4220740510 hasConceptScore W4220740510C107872376 @default.
- W4220740510 hasConceptScore W4220740510C126645576 @default.
- W4220740510 hasConceptScore W4220740510C127313418 @default.
- W4220740510 hasConceptScore W4220740510C134018914 @default.
- W4220740510 hasConceptScore W4220740510C140779682 @default.
- W4220740510 hasConceptScore W4220740510C142796444 @default.
- W4220740510 hasConceptScore W4220740510C144024400 @default.
- W4220740510 hasConceptScore W4220740510C149923435 @default.
- W4220740510 hasConceptScore W4220740510C178790620 @default.
- W4220740510 hasConceptScore W4220740510C181199279 @default.
- W4220740510 hasConceptScore W4220740510C185592680 @default.