The Uptake and Release of Petroleum Hydrocarbons by the Marine Mussel Mytilus Edulis

Hansen, Nis; Jensen, Vibeke B.; Appelquist, Helge; Mørch, Erik

doi:10.1016/b978-0-08-022939-3.50032-5

Cited by 8 publications

(4 citation statements)

References 20 publications

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“…According to these authors, the relative size of lipid pool affects movement of these compounds into biota tissues, implying that higher LC causes faster uptake and slower elimination of these contaminants. This gives rise to minimal accumulation of contaminants in low LC tissues compared to high accumulation in those tissues with high LCs (Hanson, Jenson, Appelquist, & Morch 1978). However, this scenario was not observed in the present study.…”

Section: Ocp Concentrations In Biota and Associated Sedimentscontrasting

confidence: 64%

Organochlorine Pesticides in Sediment-Dwelling Animals from Mangrove Areas of the Calabar River, SE Nigeria

Oyo-Ita¹,

Ekpo²,

Adie³

et al. 2014

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Sediment-dwelling biota such as mollusks (clam) and crabs collected from mangrove areas of the Calabar River are important routes of exposure to organochlorine pesticides (OCPs) contamination. Residual levels of OCPs including HCHs, DDTs, heptachlor, heptachlor epoxide, aldrin, endrin ketone, entrin aldehyde, dieldrin, endosulfan, endosulfan sulphate, methoxychlor, were determined in these organisms. The results revealed the OCP loads to be predominated by DDTs and HCHs (much of which was derived from illegal usage of GAMMALIN 20 for fishing) with the overall means of 49.6 and 35.1 ng/g wet weight (ww), respectively, at 100% frequencies of occurrence. Concentrations of other OCP components were generally low and were not detected in all biota samples. This probably reflects low utilization of these OCPs in the region and/or low bioaccumulation potential in the biota species. In general, the OCP concentrations were higher in freshwater mollusks and crabs than in brackish water, indicating that freshwater biota were more easily influenced by OCPs than their brackish water counterparts. One way analysis of variance (ANOVA) indicated no significant relationship between lipid content (LC) or body size of organisms and contaminant load, probably because of the non-equilibrium situation: smaller animals accumulated more OCPs than their larger counterparts, suggesting different uptake and elimination rates for these compounds. Biota-sediment accumulation factors (BSAFs) for DDTs and HCHs varied among the organisms and were in the ranges 1.02-9.78 and 0.74-8.72, respectively, indicating probably that HCHs were less bio-available in the river than DDTs. They were generally lower for highly polluted site (UMA; freshwater area) and higher for areas of low anthropogenic pressure (MR-brackish water area). Risk assessment matched against various standards clearly showed that the biota were highly contaminated with HCHs and DDTs, and may pose serious health threats to local inhabitants of the catchments. Furthermore, other selected OCPs such as heptachlor and dieldrin may in addition pose lifetime cancer risk, especially to residents of the riverine/coastal communities who often consume more of these organisms than those living inland.

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Section: Ocp Concentrations In Biota and Associated Sedimentscontrasting

confidence: 64%

Organochlorine Pesticides in Sediment-Dwelling Animals from Mangrove Areas of the Calabar River, SE Nigeria

Oyo-Ita¹,

Ekpo²,

Adie³

et al. 2014

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“…The relative size of lipid pool has been shown to affects movement of hydrophobic compounds into biota tissues, implying that higher LC causes faster uptake and slower elimination of these contaminants. This gives rise to greater accumulation of contaminants in high LC tissues than those tissues with low LCs (Hanson et al, 1978). However, this fact was not observed in our case study.…”

Section: Pah Concentrations In Biota and Bsafscontrasting

confidence: 65%

Anthropogenic PAHs in Sediment-Dwelling Biota from Mangrove Areas of the Calabar River, SE Niger Delta, Nigeria

Ekpo¹,

Ita²,

Offem³

et al. 2012

ENRR

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Polycyclic aromatic hydrocarbons (PAHs) in mangrove sediment-dwelling biota (crabs and molluscs) from the Calabar River, SE Niger Delta of Nigeria were analyzed using GC-MS in order to assess the degree of contamination of the river by anthropogenic activity. The associated sediment samples (where these biota were collected) showed much higher total PAH (TPAH) concentration (16,028.3 ng/g dry weight (dw)) at the upper mangrove area (UMA) than that found toward the river mouth (MR; 1,667.5 ng/g dw). However, the mean TPAH levels were higher in molluscs (16,749.8 ng/g ww) and crabs (29,325.1 ng/g ww) at theMR, and in molluscs (28,580.8 ng/g ww) and crabs (71,782.6 ng/g ww) at the UMA than in the associated sediments, indicating occurrence of bio-accumulation/bio-concentration of PAHs in tissues of these organisms. The results revealed that molluscs are safer to consume than crabs. One way analysis of variance (ANOVA) indicated no significant relationship between lipid content or body size of organisms and contaminant load probably because of non-equilibrium situation: smaller animals accumulated more PAHs than their larger counterparts, suggesting different uptake and elimination rates for these compounds. Biota-sediment accumulation factors (BSAFs) varied among the organisms (4.84-14.98) and were generally lower for highly polluted site (UMA; fresh water area) and higher for area of low anthropogenic pressure (MR- brackish water area). Risk assessment against USEPA standard show the biota to be highly contaminated with carcinogenic PAHs and may pose life-time cancer risk, especially to residents of the riverine/coastal communities who often consume more of these organisms than those living hinterland.

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“…Los contaminantes HAP se originan principalmente, ya sea por origen petrogénico haciendo referencia al uso del petróleo, combustibles fósiles en actividades industriales o de origen pirogénico en donde influyen las plantas de energía, operaciones industriales y motores de vehículos donde ocurre la combustión incompleta de materia orgánica como gasolina, petróleo, carbón y diésel, esta es la fuente predominante (Saha et al, 2009;Hansen et al, 1979).…”

Section: Tipos De Hapsunclassified

Contaminación por hidrocarburos aromaticos policiclicos en sedimentos y especies marinas: revisión

Espinosa Rios,

Morales Valdelamar,

Jaramillo-Colorado

2023

Cienc. En Desarro.

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Los sedimentos marinos son partículas insolubles que llegan a través de los ríos al mar, se originan de fuentes como sales minerales, pequeñas rocas, así como de todos los restos de animales y organismos que se adhieren a él cuándo estos mueren. Estos sedimentos están siendo afectados negativamente por la contaminación y presencia de hidrocarburos aromáticos policíclicos (HAPs), lo que genera un impacto nocivo en la flora y fauna de los ecosistemas acuáticos, debido a fuentes pirogénicas y petrogénicas, entre las cuales se destacan las operaciones industriales y el uso del petróleo, la finalidad de esta revisión fue conocer las fuentes principales de contaminación y las concentraciones de HAPs en las costas Colombianas, compararlas con el resto de América y determinar si cumplían con la normativa establecida con Administración Nacional Oceánica y Atmosférica (NOAA); los efectos en la vida marina también fueron parte importante de esta revisión, debido al daño que provocan los HAPs a la salud humana.

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The Uptake and Release of Petroleum Hydrocarbons by the Marine Mussel Mytilus Edulis

Cited by 8 publications

References 20 publications

Organochlorine Pesticides in Sediment-Dwelling Animals from Mangrove Areas of the Calabar River, SE Nigeria

Organochlorine Pesticides in Sediment-Dwelling Animals from Mangrove Areas of the Calabar River, SE Nigeria

Anthropogenic PAHs in Sediment-Dwelling Biota from Mangrove Areas of the Calabar River, SE Niger Delta, Nigeria

Contaminación por hidrocarburos aromaticos policiclicos en sedimentos y especies marinas: revisión

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