Assessment of heavy metals contamination in sediments at the lake of Ahémé in southern of Benin (West Africa)

Hounkpè, J.B.; Kèlomé, Nelly C.; Adechina, Rodrigue A. M. A.; Lawani, R.N.

doi:10.26872/jmes.2017.8.12.460

Cited by 6 publications

(5 citation statements)

References 8 publications

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“…Evaluating the presence of heavy metals in sediment is a tool that allows us to know the mobilization of these pollutants and their effects on biota, taking into account that sediments are a reservoir of heavy metals that contribute to the degree of bioavailability free for aquatic organisms. The same trend was presented with higher Igeo Cd values with respect to Pb in the study area of this research (Figure 4), which was reported with a minimum value of Pb with −0.08 in the rainy season and in the case of Cd, a maximum value of 5.75 in the dry season [57]. Researchers also reported in the Tsurumi River of Japan Igeo values for Zn, Cu, Cd, Pb, Br placing them in class 0 to 4, which showed a sediment quality that ranges from moderate to heavily contaminated [60].…”

Section: Permissible Limits In Sedimentssupporting

confidence: 84%

“…However, the difficulty of differentiating between anthropogenic and natural contributions of heavy metals in aquatic ecosystems should be highlighted; it is particularly difficult to determine the flow of pollutants when there is an increase in concentrations between seasons [6]. The Igeo values showed that Cd contributes with the highest enrichment of all the elements analyzed, which showed that there was high contamination in the sediments of the analyzed sites during the two periods of study [57]. The highest levels of Cd may be related to the increase in human and industrial activities in the vicinity of the lagoon in this study; however, Pb concentrations were lower than those reported in other investigations in the case of the Palvio fluvio-lagoon system (Figure 4).…”

Section: Geoaccumulation Index (Igeo) In the Palizada Rrivermentioning

confidence: 99%

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Geoacumulation of Heavy Metals in Sediment of the Fluvial–Lagoon–Deltaic System of the Palizada River, Campeche, Mexico

Navarrete-Rodríguez

Castañeda-Chávez

Lango-Reynoso

2020

IJERPH

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The fluvial–lagoon–deltaic system of the Palizada River in Campeche is an ecosystem of socioeconomic and ecological importance. It is justifiable to carry out studies in this system due to its connection with another larger ecosystem called the Términos Lagoon. The objective of this investigation was to analyze the concentration of Pb and Cd in sediments of the fluvial–lagoon–deltaic system of the Palizada River and to determine, with this, the contamination index of these metals. Cd showed the highest concentration in sampling sites and climatic seasons with respect to Pb, with a maximum value of 53.9 ± 5.0, while the Pb concentration was 10.4 ± 0.2 μg∙g−1. The same tendency was present with pollution and geoaccumulation indexes; here, the Cd index stands out. The enrichment of heavy metals was identified through the accumulation of Cd and Pb; such a process was evaluated through the geoacumulation index (Igeo). The results of this indicated that the contamination of these elements is mainly of anthropogenic origin. This element represents an ecological toxic risk due to the chronic presence of heavy metals in a priority area for the conservation of aquatic and terrestrial biota such as the Palizada system, owing to its high toxicity even at low concentrations. Thus, it is important to evaluate its sublethal effects in the organisms that inhabit this system, which requires the implementation of integral monitoring.

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Section: Permissible Limits In Sedimentssupporting

confidence: 84%

Section: Geoaccumulation Index (Igeo) In the Palizada Rrivermentioning

confidence: 99%

Geoacumulation of Heavy Metals in Sediment of the Fluvial–Lagoon–Deltaic System of the Palizada River, Campeche, Mexico

Navarrete-Rodríguez

Castañeda-Chávez

Lango-Reynoso

2020

IJERPH

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“…Meanwhile, other sites also analyzed were cataloged within the class of I-geo 3 (moderate to heavily polluted) [50,51]. The same trend was presented with higher I-geo Cd values with respect to Pb in the study area of this research (Figure 4), which was reported with a minimum value of Pb with -0.08 in the rainy season and in the case of Cd a maximum value of 5.75 in the dry season [49]. Also reported in the Tsurumi River, Japan, I-geo values for Zn, Cu, Cd, Pb, Br placing them in class 0 to 4, which showed a sediment quality moderately to strongly contaminated [52]…”

Section: Geoaccumulation Index (I-geo) In the Palizada Riversupporting

confidence: 75%

“…In the case of Pb in the same place, it also showed maximum values of both CF of 0.8337 and Igeo with -0.847, placing it in class 0 classified as practically uncontaminated ( Table 3). The Igeo values showed that Cd contributes with the highest enrichment of all the elements analyzed, which showed that there was high contamination in sediments of analyzed sites during the two periods of study [49]. The highest levels of Cd may be related to the increase in human and industrial activities in the vicinity of the lagoon in this study, however Pb concentrations were lower than those reported in other investigations.…”

Section: Geoaccumulation Index (I-geo) In the Palizada Rivercontrasting

confidence: 45%

Geoacumulation of Heavy Metals in Sediment of the Fluvial-Lagoon-Deltaic System of the Palizada River, Campeche, Mexico

Navarrete-Rodríguez

Castañeda-Chávez

Lango-Reynoso

2019

Preprint

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The fluvial-lagoon-deltaic system of the Palizada river in Campeche is an ecosystem of socioeconomic and ecological importance. It is justifiable to carry out studies in this system, due to its connection with another larger ecosystem called Términos lagoon. The objective of this investigation was to analyze the concentration of Pb and Cd in sediments of the fluvial-lagoon-deltaic system of the Palizada river and to determine, with this, the contamination index of these metals. Cd presented the highest concentration in sampling sites and climatic seasons with respect to Pb, with a maximum value of 53.926 ± 5.045, while Pb was 10.421 ± 0.218 μg g-1. The same tendency was presented with pollution and geoaccumulation indexes, where the Cd index stands out. The enrichment of heavy metals was identified through the accumulation of Cd and Pb, such process was evaluated through the geoacumulation index (Igeo). The results of this indicated that these elements are contaminating with an anthropogenic origin mainly. This element represents a toxic risk for the Palizada system, due to its high toxicity even at low concentrations, as well as to evaluate the sublethal effects in organisms that inhabit this system and it requires the implementation of an integral monitoring.

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“…24 who obtained a moderate level of contamination in Cd in the sediments of Lac Léré and by Hounkpè and al. 25 who, working on the sediments of Lake Ahémé, obtained a level of zero to moderate contamination in Pb. It is known that various anthropogenic activities can change the dynamics of a watercourse and add a variety of heavy metals 26,27 .…”

Section: Discussionmentioning

confidence: 99%

Assessment of trace metals contamination in sediments of Kossou Lake (Côte d’Ivoire).

2019

jcbsc

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This study was conducted to evaluate the pollution level of some trace metals (Pb, Cd and Hg) in the surface sediments of Kossou Lake in Côte d'Ivoire. Two sampling campaigns, one in the rainy season and the other in the dry season, were carried out at five sampling stations. In rainy season, the average concentrations (in mg/kg dry weight) are 52.76 for Pb, 0.59 for Cd and 0.03 for Hg. In dry season, they are 92.75 for Pb, 1.17 for Cd, and 0.02 for Hg. Our results generally show that the accumulation capacity of the trace metals varies according to the sampling site and the season. The comparison of our data with freshwater sediment quality standards shows that the studied sediments are contaminated by Pb and Cd during both seasons. This result is confirmed by the geoaccumulation index (Igeo) which generally indicate moderate contamination of sediments by Pb and Cd, as well as an absence of Hg contamination.

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Assessment of heavy metals contamination in sediments at the lake of Ahémé in southern of Benin (West Africa)

Cited by 6 publications

References 8 publications

Geoacumulation of Heavy Metals in Sediment of the Fluvial–Lagoon–Deltaic System of the Palizada River, Campeche, Mexico

Geoacumulation of Heavy Metals in Sediment of the Fluvial–Lagoon–Deltaic System of the Palizada River, Campeche, Mexico

Geoacumulation of Heavy Metals in Sediment of the Fluvial-Lagoon-Deltaic System of the Palizada River, Campeche, Mexico

Assessment of trace metals contamination in sediments of Kossou Lake (Côte d’Ivoire).

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