The study focused on identifying the significant physico-chemical parameters to understand the prevailing water quality conditions of two urban lakes located at Mumbai megacity. Out of the different water quality parameters analyzed, biochemical oxygen demand, total organic carbon, ammonia, alkalinity and minerals showed higher mean values in Powai Lake compared to Vihar Lake. Physico-chemical ...

Deep karst depressions with a large volume of water due to a poor water drainage system (caused by a clay layer, etc.) and with steeply sloping sidewalls paludificate in a special way. Peat formation begins with dead vegetative material (leaves, etc.) floating on the water's surface in the center of the karst lake. The peat grows laterally from the center of the depression to its edges and the ...

Small lakes are important freshwater resources to support the quality of human life. However, small in watershed becoming threatened ecosystems because increasing land-use changes and anthropogenic activity. The study aimed determine characteristic physical-chemical parameters trophic status some lake Ciliwung Watershed sustainable management preventing eutrophication effects. data was collecte...

Since in situ formation of Mg(OH)2 can efficiently sorb phosphate (PO4) from low concentrations in the environment, a novel dispersed magnesium oxide nanoflake-modified diatomite adsorbent (MOD) was developed for use in restoration of eutrophic lakes by removal of excess PO4. Various adsorption conditions, such as pH, temperature and contact time were investigated. Overall, sorption capacities ...

Toxin-producing cyanobacteria have frequently been hypothesized to limit the ability of herbivorous zooplankton (such as Daphnia) to control phytoplankton biomass by inhibiting feeding, and in extreme cases, causing zooplankton mortality. Using limnocorral experiments in hyper-eutrophic ponds located in Alabama and Michigan (U.S.A.), we tested the hypothesis that high levels of cyanobacteria an...

Structural equation modeling is a multivariate statistical method that allows evaluation of a network of relationships between manifest and latent variables. In this statistical technique, preconceptualizations that reflect research questions or existing knowledge of system structure create the initial framework for model development, while both direct and indirect effects and measurement error...

Taihu Lake is located at the center of Changjiang delta region, the Lake and its effluent rivers are important water sources for 40 million around inhabitants and rapidly increasing industrial factories in Shanghai, Jiangsu and Zhejiang. The pollutants originate mainly from acidy rain, home sewage of the vast number of inhabitants, livestock manure, agricultural fertilizers & pesticides applied...

The technique of DGT (diffusive gradients in thin films) using three diffusive gel thicknesses was applied to estimate the mobility and bioavailability of heavy metals in sediments and porewater of Lake Taihu, China. The DGT results showed significantly positive correlations between Co, Pb, Cd and Mn, and Ni and Fe concentrations in porewater. Cu and Zn showed a significantly negative correlati...

Organic phosphorus (P) fractions in surface sediments from a large shallow, eutrophic Lake Taihu, China, were extracted with 0.1 M NaOH after pre-treatment of the sediments with a solution composed of 0.1 M EDTA and 2% (w/v) Na(2)S(2)O(4). Composition of organic P in the extracts was then characterized by (31)P nuclear magnetic resonance spectroscopy ((31)P NMR). Several P species, including ph...