scholarly journals Ecological risk assessment of heavy metals in water and sediment of the Pearl River Estuary, China

2018 ◽  
Vol 394 ◽  
pp. 052055 ◽  
Author(s):  
Zepeng Jiao ◽  
Huanyong Li ◽  
Meiying Song ◽  
Lin Wang
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Ecological Risk ◽  
Ecological Risk Assessment ◽  
River Estuary ◽  
Pearl River Estuary ◽  
Pearl River ◽  
The Pearl River Estuary ◽  
Water And Sediment ◽  
The Pearl River

Preliminary evaluation of ecological risk for the city area from the Pearl River Estuary

2014 ◽  
Vol 70 (10) ◽  
pp. 1648-1655 ◽  
Author(s):  
Qiuying Chen ◽  
KinChung Ho ◽  
Jingling Liu
Keyword(s):  
Relative Risk ◽  
Ecological Risk ◽  
Water Environment ◽  
River Estuary ◽  
Pearl River Estuary ◽  
Risk Scores ◽  
Pearl River ◽  
Total Risk ◽  
The Pearl River Estuary ◽  
The Pearl River

It is essential to evaluate the ecological risk for the estuary cities area for the environmental restoration of the estuary. The ecological risk of six city areas from the Pearl River Estuary were evaluated by using the relative risk model. The relative risk assessment method was developed by considering the river network density in the sub-region. The results indicated that Dongguan had the largest ecological risk pressure with total risk scores as high as 10,846.3, and Hong Kong had the lowest ecological risk pressure with total risk scores up to 4,104.6. The greatest source was domestic sewage with total risk scores as high as 1,798.6, followed by urbanization and industry. Oxygen-consuming organic pollutants, organic toxic pollutants and nutrients were the major stressors of the water environment. In terms of habitats, the water environment was enduring the greatest pressure. For the endpoints, water deterioration faced the largest risk pressure.

Tidal Movement Characteristics Outside the Pearl River Estuary and Its Influence on the Mouths

2009 ◽  
Author(s):  
Jun Kong ◽  
Xiaoxiao Xue ◽  
Ronghui Ye
Keyword(s):  
River Estuary ◽  
Tidal Energy ◽  
Pearl River Estuary ◽  
Point Of View ◽  
Pearl River ◽  
The Pearl River Estuary ◽  
Water And Sediment ◽  
Amphidromic Point ◽  
Tidal Movement ◽  
The Pearl River

The hydrology of the Pearl River Estuary is controlled both by river discharge and tide, where water and sediment move through eight outlets (mouths) into the sea. Using numerical modeling, this paper examines the characteristics of tidal movement in Pearl River Estuary. Results showed an amphidromic point near Modaomen mouth, and river runoff flows down. From marine dynamics point of view, Modaomen mouth is the main channel for water and sediment transportation of Pearl River. Using the tidal energy, we discuss the change of the sediment near the several entrances during the flood and dry seasons.

Heavy metals in coastal wetland sediments of the Pearl River Estuary, China

2007 ◽  
Vol 149 (2) ◽  
pp. 158-164 ◽  
Author(s):  
QuSheng Li ◽  
ZhiFeng Wu ◽  
Bei Chu ◽  
Na Zhang ◽  
ShaSha Cai ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Coastal Wetland ◽  
River Estuary ◽  
Pearl River Estuary ◽  
Pearl River ◽  
The Pearl River Estuary ◽  
The Pearl River
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