Some potential hazardous trace elements contamination and their ecological risk in sediments of western Chaohu Lake, China

Zheng, Lu; Liu, Guijian; Kang, Yu; Yang, Ren-Kang

doi:10.1007/s10661-009-1009-3

Cited by 61 publications

(29 citation statements)

References 18 publications

(24 reference statements)

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“…Extreme values and outliers are marked with an asterisk (*) and O, respectively. The total heavy metals (Cd, Cr, Cu, Ni, and Zn) had extreme values or outliers at the entrance of Nanfei River where the pollution should be given special attention, same report could be found in the literatures (Zheng et al 2009b;Liu et al 2007). Table 2 is generated by comparing measured concentrations of elements with the US-EPA water quality criteria (EPA 2009) and standard background value (Li et al 1986).…”

Section: Heavy Metal Concentrationssupporting

confidence: 67%

Spatial distribution and multiple sources of heavy metals in the water of Chaohu Lake, Anhui, China

Liu

Zhou

et al. 2011

Environ Monit Assess

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In this study, a survey for the spatial distribution of heavy metals in Chaohu Lake of China was conducted. Sixty-two surface water samples were collected from entire lake including three of its main river entrances. This is the first systematic report concerning the content, distribution, and origin of heavy metals (Cu, Cr, Cd, Hg, Zn, and Ni) in the Chaohu Lake water. The results showed that heavy metals (Cu, Cr, Zn, and Ni) concentrations in the estuary of Nanfei River were relatively higher than those in the other areas, while content of Hg is higher in the southeast lake than northwest lake. Moreover, Cd has locally concentration in the surface water from the entire Chaohu Lake. The heavy metal average concentrations, except Hg, were lower than the cutoff values for the first-grade water quality (China Environment Quality Standard) which was set as the highest standard to protect the social nature reserves. The Hg content is between the grades three and four water quality, and other heavy metals contents are higher than background values. The aquatic environment of Chaohu Lake has apparently been contaminated. Both the cluster analysis (CA) and correlation analysis provide information about the origin of heavy metals in the Lake. Our findings indicated that agricultural activities and adjacent plants chimneys may contribute the most to Cd and Hg contamination of Chaohu Lake, respectively.

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Section: Heavy Metal Concentrationssupporting

confidence: 67%

Spatial distribution and multiple sources of heavy metals in the water of Chaohu Lake, Anhui, China

Liu

Zhou

et al. 2011

Environ Monit Assess

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“…In recent published works, EFs have been calculated using a recommended reference value [7,51] or background values of elements from previous studies [14,52]. In Iran there are no official recommended reference elemental values.…”

Section: Enrichment Factorsmentioning

confidence: 99%

Heavy metals and polycyclic aromatic hydrocarbons: Pollution and ecological risk assessment in street dust of Tehran

Saeedi

Salmanzadeh

2012

Journal of Hazardous Materials

413

103

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“…And the building of Chaohu Gate and Yuxi Gate enhanced the retention of phosphorus and speeds up the process of eutrophication (Shang and Shang, 2005). The climate of Lake Chaohu belongs to sub-tropical monsoon climates, the annual average rainfall is 1 120 mm and the annual average temperature is 15-16 o C (Zheng et al, 2010).…”

Section: > Study Area Descriptionmentioning

confidence: 99%

Linkage between land use patterns and sediment phosphorus sorption behaviors along shoreline of a Chinese large shallow lake (Lake Chaohu)

Zhou

Chen

et al. 2011

Knowl. Managt. Aquatic Ecosyst.

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Key-words:degree of phosphorus saturation, phosphorus sorption behavior, land use, sediment, soil To test the relationship between phosphorus buffering capacity in sediments of littoral zone and land use, seasonal samples were taken from the soils representing different patterns of land use, together with the littoral zone sediments, along shoreline in Lake Chaohu. There existed significantly positive relationships between equilibrium phosphorus concentration (EPC 0 ) and degree of phosphorus saturation (DPS) defined as ratios of Olsen-P, algae available phosphorus (AAP) and inorganic phosphorus (IP) to maximum sorption capacity (Q max ). So, some easily accessible P parameters especially DPS were indicative of EPC 0 in the sediments. Furthermore, the contents of IP, total phosphorus (TP) and organic matter (OM) in the sediments were significantly related to those in the soils. Therefore, the soils could provide the littoral zone with IP either directly or indirectly through TP input; it also provided the Olsen-P through the OM input, as evidenced by the relationship between Olsen-P and OM. It meant that the enhanced OM would enlarge the DPS. On the other hand, the increase in OM paralleled with the increases in Q max , which lower the DPS simultaneously. Thus, the OM modified sediment phosphorus sorption behaviors in complicated manners. Finally, the soil covered by Fleabane was coupled with the sediment whose EPC 0 values were lower and further decreased with strong diffusion from the soils after heavy rains. Hence, shoreline soil may input TP including IP and OM into the lake and alter the DPS together with EPC 0 thereby regulating the sediment functions to act as sink or source of phosphorus. RÉSUMÉLien entre les modes d'utilisation des terres et le comportement de sorption du phosphore des sédiments le long du littoral d'un lac peu profond en Chine (lac Chaohu) Mots-clés :degré de saturation en phosphore, comportement de sorption du phosphore, utilisation des terres, sédiments, sols Afin de tester la relation entre la capacité tampon phosphore des sédiments de la zone littorale et l'utilisation des terres, des échantillons de sols représentant différents modes d'utilisation des terres ont été prélevés saisonnièrement en même temps que des sédiments en zone littorale, le long des rives du lac Chaohu. Il existe des relations significativement positives entre la concentration de phosphore à l'équilibre (EPC) et le degré de saturation en phosphore (DPS) défini comme les ratios du Olsen-P, du phosphore disponible aux algues (PAA) et du phosphore inorganique (IP) à un maximum de capacité de sorption (Q max ). Ainsi, certains paramètres facilement accessibles du P, en particulier DPS sont indicatifs d'EPC 0 dans les sédiments. Par ailleurs, le contenu en phosphore inorganique (IP), le phosphore total (TP) et la matière organique (OM) dans les sédiments sont Article published by EDP Sciences C. Zhou et al.: Knowl. Managt. Aquatic Ecosyst. (2011) 403, 06 significativement corrélés à ceux des sols. ...

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Some potential hazardous trace elements contamination and their ecological risk in sediments of western Chaohu Lake, China

Cited by 61 publications

References 18 publications

Spatial distribution and multiple sources of heavy metals in the water of Chaohu Lake, Anhui, China

Spatial distribution and multiple sources of heavy metals in the water of Chaohu Lake, Anhui, China

Heavy metals and polycyclic aromatic hydrocarbons: Pollution and ecological risk assessment in street dust of Tehran

Linkage between land use patterns and sediment phosphorus sorption behaviors along shoreline of a Chinese large shallow lake (Lake Chaohu)

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