Spatial variation and toxicity assessment for heavy metals in sediments of intertidal zone in a typical subtropical estuary (Min River) of China

2017 ◽  
Vol 24 (29) ◽  
pp. 23080-23095 ◽  
Author(s):  
Zhigao Sun ◽  
Jiabing Li ◽  
Tao He ◽  
Peng Ren ◽  
He Zhu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Spatial Variation ◽  
Intertidal Zone ◽  
Toxicity Assessment ◽  
Min River ◽  
Subtropical Estuary

Seasonal, spatial variation, and pollution sources of heavy metals in the sediment of the Saigon River, Vietnam

2020 ◽  
Vol 256 ◽  
pp. 113412 ◽  
Author(s):  
Binh Thanh Nguyen ◽  
Dung Doan Do ◽  
Tong Xuan Nguyen ◽  
Vinh Ngoc Nguyen ◽  
Duong Thuy Phuc Nguyen ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Spatial Variation ◽  
Pollution Sources

scholarly journals Toxicity Effects of Selected Heavy Metals on Lactuca sativa and Hydra viridissima used for Sustainable Crop Production

2018 ◽  
Vol 7 (3) ◽  
pp. 82
Author(s):  
Lina Maria Caceres Diaz ◽  
Claudia Campos ◽  
Gideon Oron
Keyword(s):  
Heavy Metals ◽  
Acute Toxicity ◽  
Lactuca Sativa ◽  
Toxicity Test ◽  
Crop Production ◽  
Arid Regions ◽  
Toxicity Assessment ◽  
Agricultural Irrigation ◽  
Lactuca Sativa L ◽  
Toxicity Effects

This study examines the prospects for using Hydra viridissima toxicity test 96-h LC50, served as a model invertebrate, Lactuca sativa L. was applied for seeds toxicity test (120-h IC50) and a model plant for an acute toxicity assessment of heavy metals content in water. The heavy metals used to assess the acute toxicity of the water utilized for agricultural irrigation in arid regions includes cadmium (CdCl2.2H2O), chromium (K2Cr2O7), zinc (ZnSO4. 7H2O), and boron (H3BO3). A grading of the substances was conducted, and it was found that the toxicity levels for H. viridissima and L. sativa were, with the least harmful first: B < Cr < Zn < Cd and Zn < B < Cr < Cd, respectively. Results indicate that H. viridissima was a more sensitive indicator of toxicity for all of the evaluated substances. However, L. sativa could also be used successfully to rank toxicants in order of their potential hazards.

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