Monitoring of the changes in potential environmental risk of some heavy metals in water and sediments of Burullus Lake, Egypt

2019 ◽  
Vol 43 (1) ◽  
Author(s):  
Ahmed A. Melegy ◽  
Mohamed S. El-Bady ◽  
Husein I. Metwally
Keyword(s):  
Heavy Metals ◽  
Environmental Risk ◽  
Burullus Lake

Unaccounted Environmental Risk of Fuel Filling Stations in the City

2020 ◽  
Vol 24 (11) ◽  
pp. 24-29
Author(s):  
G.I. Sarapulova
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Environmental Risk ◽  
Soil Profile ◽  
Urban Soils ◽  
Petroleum Products ◽  
Oil Products ◽  
Geochemical Barrier ◽  
Filling Station ◽  
The City

The statistically significant geochemical dependences of the dynamic behavior of petroleum products in urban soils in the fuel filling station zone are considered, the areal of their distribution are determined. The techniques used make it possible not only to identify laterally manmade modules of environmental hazard (laterally module) when oil products come from fuel filling stations, but also to determine additional factors of unaccounted environmental risk, for example, the process of accumulation of heavy metals in the soil profile in excess of the standards on the resulting geochemical barrier in the form of oil products. The risk assessment of oil product supply facilities should be carried out taking into account the specifics of the distribution of toxicants in technogenically altered soils.

scholarly journals Enhanced technology of phytoremediation

2021 ◽  
Vol 261 ◽  
pp. 04034
Author(s):  
Cui Shuang ◽  
Han Qing ◽  
Bai Song
Keyword(s):  
Heavy Metals ◽  
Carbon Dioxide ◽  
Environmental Risk ◽  
Treatment Cost ◽  
Environmental Aesthetics ◽  
Deep Soil ◽  
Management Measures ◽  
Chemical Strengthening

The enhanced technology of phytoremediation has the advantages of low treatment cost, good purification effect, low environmental risk and environmental aesthetics. However, some hyperaccumulators grow slowly and their biomass is generally low; the activity of heavy metals in the soil is very low; the roots of plants are distributed in the surface of the soil, and the remediation effect of deep soil is poor; the nutrients of the soil to be repaired are seriously insufficient. It is necessary to take a series of strengthening measures to improve the efficiency of phytoremediation. The strengthening technologies of phytoremediation include chemical strengthening, microbial strengthening, animal strengthening, carbon dioxide strengthening, agronomic and management measures strengthening, etc.

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