Effect of Hg in Jiaozhou Bay Waters-The Temporal Variation of the Hg Content

Yang, Dong; Zhu, Si Xi; Wang, Feng You; He, Hua Zhong; Wu, You Fu

doi:10.4028/www.scientific.net/amm.556-562.633

Cited by 23 publications

(5 citation statements)

References 6 publications

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“…The land transfer processes in Jiaozhou Bay could be divided into 1) the application of Hg, 2) the emission of Hg to environment, and 3) the transfer of Hg to surface runoff, stream flow and marine. The input of Hg to Jiaozhou Bay was mainly depended on the inflow streams [16]. On time scale, the variations of Hg contents in waters were coincide with the changing of the emission of Hg.…”

Section: Resultsmentioning

confidence: 93%

“…Hg has been widely used in industry, agriculture and livelihood etc., and has caused many environmental problems. Marine is the sink of various pollutants, and Hg pollution in marine environment will finally cause harms to human [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Hence, understanding the transfer processes and mechanisms of Hg in marine waters is essential to pollution control and ecological restoration.…”

Section: Introductionmentioning

confidence: 99%

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Aquatic Transfer Mechanism of Mercury in Jiaozhou Bay

Yang

Wang

Zhu

et al. 2014

AMM

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Section: Resultsmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Aquatic Transfer Mechanism of Mercury in Jiaozhou Bay

Yang

Wang

Zhu

et al. 2014

AMM

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“…There are more than a dozen rivers entering the sea in Jiaozhou Bay, among which the Dagu River, Yang River and the Haibo River, Licun River and Loushan River in Qingdao City with larger runoff and sand content. These rivers are all seasonal rivers, and the river hydrological characteristics have obvious seasonal changes [12,13].…”

Section: The Natural Environment Of Jiaozhou Baymentioning

confidence: 99%

“…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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“…However, the rapid development of industry results in Hg pollution in the air, soil and water, and marine bays since ocean is the sink of various pollutants [1][2][3][4][5][6][7]. Hg is also one of the critical poisonous heavy metal elements, and therefore it is necessary to understanding the migration processes of Hg in marine bays [8][9][10][11]. Jiaozhou Bay is a semi-closed bay located in Shandong Province, eastern China.…”

Section: Introductionmentioning

confidence: 99%

Water Exchange and Spatial Distribution of Hg in Jiaozhou Bay

Yang¹,

Zhang²,

Li³

et al. 2018

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

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μg L -1 , respectively. The two major Hg sources in Jiaozhou Bay were overland runoff and river flow, whose source strengths were 0.068-0.104 μg L -1 and 0.061-0.074 μg L -1 , respectively. A block diagram model was provided to reveal the changing of Hg contents during migration processes, i.e., human emission, overland transport, river flow transport and oceanic transport. Hg in Jiaozhou Bay was mainly input from major sources located in the west, north and east of the bay, and Hg contents in the bay were relative high. However, Hg contents in the open waters were still relative low. Hence, by means of water exchange, there was a equivalent peak surface (0.050 μg L -1 ) in the bay. These findings were showing the influence of water exchange on Hg contents in this semi-closed bay.Jiaozhou Bay is located in the south of Shandong Province, eastern China (35°55′-36°18′ N, 120°04′-120°23′ E), and is connected to the Yellow Sea in the south. The total area and average water depth are 446 km2 and 7 m, respectively, yet the width of the bay mouth was only 3 km. This bay is a semi-closed bay. There are a dozen of rivers including Dagu River, Haibo Rriver, Licun Rriver, and Loushan Rriver etc., all of which are seasonal rivers [12][13]. Data collectionThe investigation on Hg in surface waters in Jiaozhou Bay was carried on in

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Effect of Hg in Jiaozhou Bay Waters-The Temporal Variation of the Hg Content

Cited by 23 publications

References 6 publications

Aquatic Transfer Mechanism of Mercury in Jiaozhou Bay

Aquatic Transfer Mechanism of Mercury in Jiaozhou Bay

The land surface mildly contaminated by Hg

Water Exchange and Spatial Distribution of Hg in Jiaozhou Bay

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