Determination of hydrocarbons transported by urban runoff in sediments of São Gonçalo Channel (Pelotas – RS, Brazil)

Filho, Pedro José Sanches; Böhm, Emerson M.; Böhm, Giani Mariza Bärwald; Montenegro, Gissele Oliveira; Silveira, Lucas A.; Betemps, Glauco Rasmussen

doi:10.1016/j.marpolbul.2016.10.024

Cited by 17 publications

(3 citation statements)

References 26 publications

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“…This indicates a greater influence of industrial activities as well as oil spillage on the petroleum hydrocarbon levels in most of the coastal sediments all over the world. The levels were extremely higher in some estuaries in China [56,98,[101][102][103], Ceuta Harbor in North Africa [104], São Gonçalo Channel in Pelotas, Rio Grande do Sul, Brazil [22], and Clyde Estuary, United Kingdom [105]. TPHC was generally much higher in the sediment than in the water column.…”

Section: Levels Of Total Petroleum Hydrocarbons In the Environmentmentioning

confidence: 97%

“…They are mostly found in the higher-molecular-weight range of the hydrocarbons and sometimes also in the low-molecular-weight range [21]. TPHC could also be measured as the sum of aliphatic and aromatic hydrocarbons, especially those in the following groups: C9 to C18 (aliphatic), C19 to C36 (aliphatic), and C11 to C22 (aromatic) [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

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Analytical Methods for the Determination of the Distribution of Total Petroleum Hydrocarbons in the Water and Sediment of Aquatic Systems: A Review

Adeniji

Okoh

2017

Journal of Chemistry

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Several methods of extraction and analytical determination for total petroleum hydrocarbons (TPHCs) in aqueous and solid samples are reviewed. Infrared spectroscopy is one of the efficient methods that are being replaced today pursuant to getting rid of some halogenated solvents classified as ozone-depleting substances. The gravimetric method which uses n-hexane as an extraction solvent for the determination of oil and grease, as well as the nonpolar materials, has become a preferred choice, despite being not suitable for volatiles because of the mandatory evaporation step. Other frequently used methods include gas chromatography with a flame ionization detector (FID) or mass spectrometric detector (MSD) which has the capacity to reveal the type of hydrocarbons present and is applicable to both volatile and semivolatile samples. Ultraviolet fluorescence is another method that is available both as a portable field device and as off-site laboratory equipment. Each of the methods has its own advantages and disadvantages; hence, the choice of method is guided by the type of data needed as discussed in detail in this review. The distribution of TPHC in water and sediments across the globe and the factors influencing the distribution were also reviewed.

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Section: Levels Of Total Petroleum Hydrocarbons In the Environmentmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Analytical Methods for the Determination of the Distribution of Total Petroleum Hydrocarbons in the Water and Sediment of Aquatic Systems: A Review

Adeniji

Okoh

2017

Journal of Chemistry

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“…Fato que pode explicar essas diferenças é o escoamento gerado na área urbana do município de Pelotas/RS (SANCHES FILHO et al, 2017), que acaba transportando diferentes tipos de sedimentos, através dos canais de drenagem até o canal São Gonçalo, justamente no trecho ao qual este estudo analisou (Figura 1). Outro fator que pode ser levado em conta é o amostrador do tipo garra Ekman utilizado neste trabalho, pois conforme Filizola et al (2006), este possui pouca capacidade de reprodutibilidade amostral, o que pode ter influenciado na obtenção de padrão na distribuição granulométrica e textural das amostras.…”

Section: Triângulo Texturalunclassified

Granulometria do sedimento de fundo do canal São Gonçalo na região do Porto de Pelotas

Gonçalves

Santos

Boeira

et al. 2021

RAmb.

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O canal São Gonçalo se caracteriza por ser um importante elo de ligação econômica e estratégica entre Brasil e Uruguai, bem como, é peça chave na gestão da irrigação na Planície Lagunar do estado do Rio Grande do Sul. Devido a esses motivos, objetivou-se fazer uma caracterização morfométrica dos sedimentos de fundo do canal São Gonçalo, buscando encontrar um padrão de comportamento e distribuição granulométrica na região de estudo. De tal forma, realizaram-se seis campanhas de coletas de sedimentos de fundo espacializadas de forma sazonal, possuindo cada uma dessas, 8 pontos distribuídos espacialmente. Obtiveram-se a partir das coletas, as distribuições granulométricas referentes a cada uma das 48 amostras coletadas. Esses dados permitiram a construção de um triângulo textural para o sedimento de fundo da região, curvas de distribuição granulométrica dos pontos, e análise estatística das granulometrias. O conjunto de resultados obtidos não permitiu a obtenção de um padrão de distribuição granulométrica do local, devido à grande variabilidade sazonal e espacial dos resultados.

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Gas chromatography‐mass spectrometry in assessment of road run‐off sediment quality parameters

Koljančić

Samelak

Balaban

et al. 2022

Separation Science Plus

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Surface sediment samples were collected in the Banja Luka city area, near heavy traffic roads and the Vrbas river basin, in order to determine the origin of the organic substance. For this purpose, soluble organic substances were extracted by the Soxhlet method, and extracts were fractionated by the method of column chromatography into a group of saturated hydrocarbons, aromatic hydrocarbons, and polar compounds. The total amount of soluble organic substance was in the range of 1185-3050 μg/kg. Fractions were analyzed by gas chromatography-mass spectrometry method using a non-polar HP-5 ms stationary phase with a He 99.999% flow rate of 1 ml/min. Based on the chromatograms characteristic for n-alkanes m/z 71, steranes m/z 217, and terpenes m/z 191, the specific n-alkanes range was determined (n-C14-n-C39). n-Alkanes domination of odd/even C-number and carbon preference index values ranged from 1.12-2.48. The calculated parameters showed that the organic substance in the samples is of sedimentary origin with a significant anthropogenic input. In addition, based on the analysis of aromatic fractions and the detected unresolved complex mixture, the microbiological degradation of organic substance was determined.

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Determination of hydrocarbons transported by urban runoff in sediments of São Gonçalo Channel (Pelotas – RS, Brazil)

Cited by 17 publications

References 26 publications

Analytical Methods for the Determination of the Distribution of Total Petroleum Hydrocarbons in the Water and Sediment of Aquatic Systems: A Review

Analytical Methods for the Determination of the Distribution of Total Petroleum Hydrocarbons in the Water and Sediment of Aquatic Systems: A Review

Granulometria do sedimento de fundo do canal São Gonçalo na região do Porto de Pelotas

Gas chromatography‐mass spectrometry in assessment of road run‐off sediment quality parameters

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