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Elefsis Gulf, on the coasts of Attiki, in Greece, is characterised by its rather enclosed type, the presence of heavy industries located at its northeastern coast (like refineries, shipyards, iron and steel industries) and the use of its ports for the transportation of raw material and products. Previous research has shown that both industrial and marine transport activities, during the past six decades,...
In this paper, an apparatus of inert gases-surfactants assistant liquid-liquid extraction(ISALLE) is described. Based on this apparatus, a method for the determination of 20 trace level organochlorine pesticides in the water was developed. The influence of various experiment conditions on the extraction efficiency of ISALLE for the organochlorine pesticides was studied. The linearity in the detecting...
Hexachlorocyclohexane (HCH) was one of the major organochlorine pesticides (OCPs) in the water and sediments of the Peacock River in Xinjiang, China. Analyzing the water and sediment samples by gas chromatography-electron capture detection (GC-ECD), it showed that all the HCH isomers (alpha-HCH, beta-HCH, gamma-HCH and delta-HCH) could be found in the sediment, and the range was from 0.13 ng/g to...
Phoslock is a specially modified clay product, designed for permanently removing soluble phosphorus (SP) from water body, as the SP is a main driver for algae bloom. On-site pilot-scale trial on Phoslock application for Lake Dianchi water has demonstrated Pholsock is a very effective agent in SP removal from Lake Dianchi water. From the on-site pilot-scale trial, Phoslock can either quickly remove...
Water quality of Darning Lake, located at the central district of Jinan City of China, can be obviously affected by the external nutrients loading. There are about 8.07times107 kg seriously contaminated loosing sediment with 1.30times105 kg phosphorus in the lake sediment. The buffering effect of the sedimentary phosphorus plays a critical role in the lake water quality. Under natural conditions,...
The remains of zooplankton subfossil and sediment characteristics were examined from a macrophyte dominated shallow lake Wuliangsuhai in Inner Mongolia, China, in order to study past limnological changes. The lake began to switch to eutrophication gradually in the middle 1980s, creating a Transitional Sediment Layer (TSL, about 17 cm depth) that can be visually used to separate sediments derived from...
The internal Qinhuai River in Nanjing City of China was selected for the research on the influence of incity river sediment dredging to endogenous release by the experiment of simulating the endogenous releases at different depths of dredging so as to analyze the correlation between the forms and the release amount of phosphorus in the sediment and the change of the phosphorus forms before and after...
Compared with the traditional method of water quality management, using remote sensing technology in monitoring the water quality has a wider application perspective. For a water body of large scale, the Moderate resolution Imaging Spectroradiometer (MODIS) is more appropriate data for its high temporal resolution for timely and dynamic monitoring, moderate spatial resolution and no charge for acquiring...
The extensive clayization of Dexing copper mine is responsible for water and soil pollutions because of the oxidation of sulfide minerals. During the clayization, harmful elements such as As, S, Sb and Pb could be effectively released into the clay and water. Using the abundant spectral information of short wave infrared (SWIR), combining with the spectral absorbed index, SAM (Spectrum Angle Mapper)...
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