Spatial and seasonal characteristics of dissolved heavy metals in the surface seawater of the Yellow River Estuary, China

Wang, Xiaoyan; Zhao, Linlin; Xu, Hao; Zhang, Xiumei

doi:10.1016/j.marpolbul.2018.10.052

Cited by 86 publications

(35 citation statements)

References 29 publications

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“…Toutefois, les fortes concentrations en arsenic obtenues à Ahua (87,4 -76,31 µg/L) pourraient s'expliquer par le développement des activités agricoles et l'urbanisation grandissante dans la zone. Comparativement aux concentrations en arsenic (0,16 -5,89 µg/L) rapportées par Wang et al (2018) de l'estuaire de Yellow River, en Chine, celles trouvés dans cette étude se sont montrées supérieures. De même, Li et al (2017) ont rapporté des concentrations en arsenic (3,8 -11,3 µg/L) dans l'estuaire Yalujiang, en Chine inférieures à celles obtenues par la présente étude.…”

Section: Discussionunclassified

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Évaluation de la contamination des eaux de la lagune Ebrié (Zones IV et V), Côte d’Ivoire en arsenic, plomb et cadmium: variations spatio-temporelles et risques sanitaires

Togbe¹,

Kouamé²,

Yao³

et al. 2019

Int. J. Bio. Chem. Sci

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RESUMELes secteurs IV et V de la lagune Ebrié subissent une pression anthropique de plus en plus importante du fait de l'augmentation de la population et de l'intensification des activités agroindustrielles. L'objectif de cette étude est d'évaluer le niveau de contamination et les risques sanitaires des éléments (As, Cd et Pb) dans les eaux des secteurs IV et V de la lagune Ebrié. Au total, 156 échantillons d'eaux ont été prélevés mensuellement à 11 stations de décembre 2014 à novembre 2015. Les résultats ont montré qu'à l'exception de l'arsenic, les concentrations moyennes en plomb (6,16 ± 6,57 µg/L) et en cadmium (10,97 ± 9,77 µg/L) ont été supérieures à la valeur chronique des critères canadiens pour la vie aquatiques. Les valeurs de la dose journalière chronique (DJE) pour le plomb, le cadmium et l'arsenic ont varié respectivement de 0,0001 à 0,029, de 0,00005 à 0,009 et de 0,000084 à 0,017 μg / kg/j. Cependant, les valeurs de l'indice du risque potentiel non cancérigène ou quotient de danger (HQ) et de l'indice de risque (HI) ont été inférieures à 1; ce qui traduit que les concentrations en cadmium, arsenic et plomb ne présentent aucun danger pour la santé humaine dans la zone d'étude. Assessment of Ebrie Lagoon waters contamination (Sectors IV and V), Côte d'Ivoire, in arsenic, lead and cadmium: Spatio-temporal variations and sanitary risks ABSTRACTSectors IV and V of Ebrié Lagoon are facing significant anthropogenic pressures due to recent increase in human population and agro-industrial activities. The objective of the present study was to assess trace element As, Cd and Pb concentration levels in Ebrie Lagoon waters, especially in sectors IV and V along with their spatial and seasonal variations, and associated human health risks relative to dermal absorption. A . M. O. TOGBE et al. / Int. J. Biol. Chem. Sci. 13(2): 1162-1179, 2019 1163 total of 156 water samples were collected at eleven stations from December 2014 to November 2015. The results showed that the average lead concentration (6.16 ± 6.57 µg/L) was above the chronic value and lower than the acute value, the average arsenic concentration (7.30 ± 14,14 µg/L) was below the aquatic life criteria set by the Canadian Ministry of Sustainable Development, the Environment and the Parks (MDDEP), while the average cadmium concentration (10.97 ± 9.77 µg/L) was higher than the aquatic life criteria. The Chronic Daily Intake (DJE) values ranged from 0.0001 to 0.029, 0.00005 to 0.009, and 0.000084 to 0.017 μg / kg for lead, cadmium and arsenic, respectively. The Hazard Quotient (HQ) and the Hazard Index (HI) were found to be less than 1 at all the stations during all the seasons, showing no health risks to human. A

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Section: Discussionunclassified

“…Comparativement aux concentrations de plomb rapportées en Australie (Hatje et al, 2003), en Chine (Li et al, 2017 ;Wang et al, 2018), celles de la présente étude se sont avérées supérieures.…”

Section: Discussionunclassified

Évaluation de la contamination des eaux de la lagune Ebrié (Zones IV et V), Côte d’Ivoire en arsenic, plomb et cadmium: variations spatio-temporelles et risques sanitaires

Togbe¹,

Kouamé²,

Yao³

et al. 2019

Int. J. Bio. Chem. Sci

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“…In this study, both the contamination factor (C f ) and the contamination degree (C d ) were used to evaluate the surface seawater quality (Hakanson, 1980;Lü et al, 2015). C f and C d reflect the contamination level of a single TM and overall TMs in the medium, respectively (Wang et al, 2018).…”

Section: Evaluation Of the Trace Metal Contamination Levelmentioning

confidence: 99%

Species, Spatial-Temporal Distribution, and Contamination Assessment of Trace Metals in Typical Mariculture Area of North China

et al. 2020

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The species, spatial-temporal distribution, sources, correlations with physiochemical factors, and the contamination of trace metals (Cu, Pb, Cd, and Zn) were investigated in a typical mariculture area of North China. The concentrations of three species of trace metals, including total dissolved, dissolved reactive, and dissolved inert, were obtained. The total dissolved concentrations of Cu, Pb, Cd, and Zn ranged within 1.75-8.08, 0.43-2.75, 0.07-0.29, and 2.58-30.28 µg/L, respectively. These ranges were measured over 5 months (March, May, July, September, and November) and their concentrations decreased in the following order: Zn > Cu > Pb > Cd. The concentrations of Cu, Pb, Cd, and Zn decreased from nearshore to offshore, showing a distinctly regional variation. All concentrations of trace metals over the whole mariculture area were lower than the grade-II seawater quality standard of China. The relationships between trace metals with micronutrient metal (Fe) and other environmental factors (i.e., temperature, chlorophyll a, salinity, dissolved oxygen, and conductivity) were studied in detail. Discharged industrial and aquaculture effluents, uptake by organisms, and atmospheric deposition were found to be possible sources of trace metals in the studied area. Sea current and physicochemical parameters were factors that possibly influenced the spatial-temporal distribution of trace metals.

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“…Factors influencing the chemical composition of river waters in the Chu-Talas Basin. Cluster analysis [35][36][37][38][39] was used to reveal the differences between potentially toxic elements and major ions, and differences among water samples from the Chu-Talas Basin. The method of Euclidean distance was used in the cluster analysis for the similarity measure, and the method of Ward's minimum variance was used for the clustering of variables and row dendrograms.…”

Section: Discussionmentioning

confidence: 99%

Hydrochemical composition and potentially toxic elements in the Kyrgyzstan portion of the transboundary Chu-Talas river basin, Central Asia

Abuduwaili

et al. 2020

Sci Rep

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Water chemistry and the assessment of health risks of potentially toxic elements have important research significance for water resource utilization and human health. However, not enough attention has been paid to the study of surface water environments in many parts of Central Asia. Sixty water samples were collected from the transboundary river basin of Chu-Talas during periods of high and low river flow, and the hydrochemical composition, including major ions and potentially toxic elements (Zn, Pb, Cu, Cr, and As), was used to determine the status of irrigation suitability and risks to human health. The results suggest that major ions in river water throughout the entire basin are mainly affected by water–rock interactions, resulting in the dissolution and weathering of carbonate and silicate rocks. The concentrations of major ions change to some extent with different hydrological periods; however, the hydrochemical type of calcium carbonate remains unchanged. Based on the water-quality assessment, river water in the basin is classified as excellent/good for irrigation. The relationship between potentially toxic elements (Zn, Pb, Cu, Cr, and As) and major ions is basically the same between periods of high and low river flow. There are significant differences between the sources of potentially toxic elements (Zn, Pb, Cu, and As) and major ions; however, Cr may share the same rock source as major ions. The risk assessment revealed low non-carcinogenic and carcinogenic risks for human health; however, the maximum carcinogenic risk for As exceeded the allowable value, which requires further consideration. These results provide a scientific basis for the management of agricultural irrigation uses and also infill existing gaps regarding the hydrochemical composition in the Chu-Talas river basin, Central Asia.

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Spatial and seasonal characteristics of dissolved heavy metals in the surface seawater of the Yellow River Estuary, China

Cited by 86 publications

References 29 publications

Évaluation de la contamination des eaux de la lagune Ebrié (Zones IV et V), Côte d’Ivoire en arsenic, plomb et cadmium: variations spatio-temporelles et risques sanitaires

Évaluation de la contamination des eaux de la lagune Ebrié (Zones IV et V), Côte d’Ivoire en arsenic, plomb et cadmium: variations spatio-temporelles et risques sanitaires

Species, Spatial-Temporal Distribution, and Contamination Assessment of Trace Metals in Typical Mariculture Area of North China

Hydrochemical composition and potentially toxic elements in the Kyrgyzstan portion of the transboundary Chu-Talas river basin, Central Asia

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