Effect of Hg in Jiaozhou Bay Waters - Aquatic Transfer Process

Yang, Dong; Zhu, Si Xi; Wang, Feng You; Yang, Xiu Qin

doi:10.4028/www.scientific.net/amr.955-959.2491

Cited by 24 publications

(6 citation statements)

References 4 publications

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“…As the rainy season was going on, the remaining Hg in land surface and river bed was decreasing, and the content and flux of Hg to waters and ocean were also decreasing in summer in July 1988. The seasonal variations of Hg contents in 1988 were consistent with other years during 1979-1986 [1][2][3][4][5][6][7][8][9][10][11], that was Hg contents in surface waters weer relative high in spring, and were relative low in summer, and were lowest in autumn. That was the seasonal variation's mechanism of Hg, and was also the terrestrial migration mechanism.…”

Section: Seasonal Variation's Mechanism Of Hgsupporting

confidence: 67%

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Seasonal Variation Mechanism of Hg in Jiaozhou Bay 1988

Yang¹,

Wang²,

Tao³

et al. 2018

Proceedings of the 2017 4th International Conference on Machinery, Materials and Computer (MACMC 2017)

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This paper analyzed the vertical distribution and seasonal variation of Hg in waters in Jiaozhou Bay in 1988. Results showed that Hg contents in surface and bottom waters were in order of spring >summer. In case of Hg contents were relative high/low in surface waters, Hg contents in bottom waters were also relative high/low. The continuous sediment of Hg resulted in dilution and accumulation effects in bottom waters. The relative high Hg contents resulted in dilution effect in bottom waters, while the relative low Hg contents resulted in accumulation effect in bottom waters. The seasonal variations of Hg contents in surface waters were determined by the changes of the major Hg sources, while the corresponding seasonal variations of Hg contents in bottom waters were results of accumulation effect and dilution effect of waters.The distributions of Hg contents in surface and bottom waters were reverse in case of the input and sedimentation of Hg was just beginning, yet were consistent when the input and sedimentation of Hg had been on-going for a time period. Finally, the mechanism of seasonal variation mechanism and terrestrial migration mechanism were proposed.

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Section: Seasonal Variation's Mechanism Of Hgsupporting

confidence: 67%

“…The terrestrial anthropogenic Hg was discharged to soil, air and waters, and was transported to ocean finally by means of overland runoff, river flow and atmospheric deposition [4][5][6][7][8]. In general, the existence and change of Hg in marine bay are results of the terrestrial Hg's input and rainfall-runoff, in a large part .…”

Section: Introductionmentioning

confidence: 99%

Seasonal Variation Mechanism of Hg in Jiaozhou Bay 1988

Yang¹,

Wang²,

Tao³

et al. 2018

Proceedings of the 2017 4th International Conference on Machinery, Materials and Computer (MACMC 2017)

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“…The survey was conducted in May 1983, April and October 1985 [6][7]. Pb in surface and bottom waters was monitored follow by The Chinese National Specification for Marine Monitoring [8].…”

Section: Iimaterials and Methodsmentioning

confidence: 99%

Influence of ocean current on Hg content in the bay mouth of Jiaozhou Bay

Yang¹,

Zhu²,

Wang³

et al. 2014

2014 IEEE Workshop on Advanced Research and Technology in Industry Applications (WARTIA)

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Jiaozhou Bay is a semi-closed bay located in Shandong Province, eastern China. Based on investigation data on distribution of Hg content in surface and bottom waters in May 1983, April and October 1985, this paper analyzed the influence of ocean current on Hg content in the bay mouth. Results showed that In case of Hg content in both surface and bottom waters was relative low, low Hg content areas were occurring the both surface and bottom waters in the bay mouth. In case of Hg content was relative high in surface waters, there were a serious of low value centers in the bay mouth, and were decreasing gradiently from the outer to the low value center. In generally, the decreasing degree was determined by the flow rate, and therefore the Hg content could be used as tracer for revealing the flow rate of and transportation strength of ocean current.

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“…With the release of large amounts of Hg from land to the environment by many industries, Hg content has appeared on land, atmosphere, and oceans. The pollution degree and source of Hg content in the coastal waters has become everyone's concern [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. Based on the survey data in 1993, the author studied the content, horizontal distribution and sources of Hg in the water body of Jiaozhou Bay.…”

Section: Introductionmentioning

confidence: 99%

The land surface mildly contaminated by Hg

Yang

Ding

et al. 2021

E3S Web Conf.

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The Hg content in the waters of Jiaozhou Bay was within 0.010-0.060μg/L in May, September and October 1993, which conforms to the seawater quality standards of Class I and II. It indicates that in the entire waters of Jiaozhou Bay, there were some water areas that did not get contaminated by Hg while some areas got mild contamination by Hg in May, September and October. In May, the variation range of Hg content in the waters of Jiaozhou Bay was 0.010-0.046μg/L. In September, it ranged within 0.007-0.011μg/L. And in October, the content of Hg detected in the waters of Jiaozhou Bay was 0.060μg/L. There were three sources to transport Hg content, open sea currents, Licun river and the surface runoff. The Hg content from the transportation of open sea currents was 0.046μg/L, from the Licun river was 0.011μg/L and from the surface runoff was 0.060μg/L. This paper builds a model block diagram to present the different paths and Hg contents that were input in the Jiaozhou Bay. In May, the open sea currents did not get any contamination of Hg; in August, the Licun river did not get any contamination of Hg as well; while in September, the surface runoff was mildly contaminated by Hg. The author concluded two points about the migration of Hg content: 1) Human activities discharge Hg to the land so that the Hg content could directly run to the ocean through the surface runoff. As the Hg content transported by surface runoff was relatively high, it resulted that the nearshore waters got mild contamination of Hg content. On the other hand, the surface runoff transported Hg to rivers, resulting relatively low content of Hg. Then rivers delivered the Hg content to nearshore waters, leading to a non-contaminated condition of rivers. 2) Human activities input Hg content to the ocean in a long period, resulting the increase of Hg content in the ocean. As the accumulation of Hg content in the ocean, the ocean got close to the mild contamination status.

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Effect of Hg in Jiaozhou Bay Waters - Aquatic Transfer Process

Cited by 24 publications

References 4 publications

Seasonal Variation Mechanism of Hg in Jiaozhou Bay 1988

Seasonal Variation Mechanism of Hg in Jiaozhou Bay 1988

Influence of ocean current on Hg content in the bay mouth of Jiaozhou Bay

The land surface mildly contaminated by Hg

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