2013
DOI: 10.1590/s1678-86212013000100009
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Vibração: fonte de incômodo à populaçao e de danos às edificações no meio urbano

Abstract: A energia vibratória gerada pelo tráfego de veículos leves e pesados e pelas composições ferroviárias são uma fonte de poluição ambiental pouco estudada no Brasil. A forma mais eficaz de atenuação da energia vibratória é o aumento da distância entre o receptor e a fonte, o que normalmente é obtido com os recuos definidos pelas leis de zoneamento urbano e pela faixa de domínio, tanto de ferrovias como de rodovias. O adensamento das áreas urbanas, já perceptível nas cidades de médio porte, gerado principalmente … Show more

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Cited by 10 publications
(11 citation statements)
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“…An r 2 value greater than 0.995 was required to consider the satisfactory linear model. [51][52][53][54] The analytical curves for the three fluoroquinolones (Table 3) were shown to be linear over the studied range, with satisfactory r 2 since they achieved values greater than 0.995 for CIP, LEV and NOR, i.e., very strong correlation.…”
Section: Linearitymentioning
confidence: 95%
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“…An r 2 value greater than 0.995 was required to consider the satisfactory linear model. [51][52][53][54] The analytical curves for the three fluoroquinolones (Table 3) were shown to be linear over the studied range, with satisfactory r 2 since they achieved values greater than 0.995 for CIP, LEV and NOR, i.e., very strong correlation.…”
Section: Linearitymentioning
confidence: 95%
“…The standard deviation was obtained by injecting at least ten times the sample blank for subsequent application of formula LOD (3s/S) and LOQ (10s/S), where s is the standard deviation of the background and S is the slope of the analytical curve. [51][52][53] LOD and LOQ were considered satisfactory (Table 4), mainly for the purpose of the method, which evaluates antibiotic residues in complex matrices such as mangrove sediment. The present method is in the range of detection limits found in the literature.…”
Section: Limits Of Detection and Quantificationmentioning
confidence: 99%
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“…The recoveries of DR1 were in the range 85.9-113% (Table 1). According to Brito et al, 42 recoveries of 60-115 and 80-110% are considered to be satisfactory for analyte concentrations of 10 -6 and 10 -5 mol L -1 , respectively. The values obtained therefore confirmed that reliable measurement of DR1 in water samples could be achieved using Fongranal ® FB.…”
Section: Spectrophotometric Determination Of Dr1 In Water Samplesmentioning
confidence: 98%