Ciénaga de Mallorquín is a coastal lagoon designated as a RAMSAR site due to its ecological regional and international importance. In this work, the environmental fluid dynamics code explorer modeling system was implemented to determine the spatio-temporal distribution of temperature, dissolved oxygen, chemical oxygen demand and nutrient levels, and assess the trophic status of Ciénaga de Mallo...

Paldang Reservoir, located in the Han River basin South Korea, is used for drinking water, fishing, irrigation, recreation, and hydroelectric power. Therefore, water quality of reservoir great importance. The main objectives this study were to evaluate spatial seasonal variations surface using multivariate statistical techniques (MSTs) along with Trophic State Index (TSI) deviation (TSID). empi...

Forage-based livestock systems have been implicated as major contributors to deteriorating water quality, particularly for phosphorus (P) from commercial fertilizers and manures affecting surface and ground water quality. Little information exists regarding possible magnitudes of nutrient losses from pastures that are managed for both grazing and hay production and how these might impact adjace...

Inadequate management practices for solid waste and wastewater are some of the main causes eutrophication globally, especially in regions where intensive livestock, agricultural, industrial activities coupled with inexistent or ineffective treatment infrastructure. In this study, a methodological approach is presented to spatially assess trophic state large territories based on public water qua...

Yanghe Reservoir is an important source of drinking water for Qinhuangdao City, North China; however, in recent decades this water source has been eutrophic with recurrent summer cyanobacterial blooms. The trophic grade of the system in summer was mesotrophic-eutrophic in 1990 and became hypertrophic in 2011. The nutrient availability is extremely high during the entire year, and the water temp...

BACKGROUND AND OBJECTIVE. There is a need for objective semiquantitative indexes for the evaluation of results of single-photon emission tomography (SPECT) in patients with brain glioma. The aim of this study was to validate the total size index (TSI) and total intensity index (TII) based on technetium-99m-methoxyisobutylisonitrile ((99m)Tc-MIBI) SPECT scans to discriminate the patients with hi...

Lake Tana, the largest inland water body in Ethiopia, has witnessed significant changes due to ongoing urbanization and socioeconomic activities recent times. In this study, two-decade recordings of moderate resolution imaging spectroradiometer (MODIS) were used derive Forel–Ule index (FUI). The FUI, which ranges from 1 (dark-blue pristine water) 21 (yellowish-brown polluted water), is importan...

The aim of this study is to assess the eutrophication and trophic status based on different indices and also reference threshold values in the Iranian coastal waters of the southern Caspian Sea (ICWSCS). The water samples (three replicates) were collected along four transects (off the coast from Anzali, Tonekabon, Nowshahr and Amirabad) between spring 2013 and winter 2014. The results show mark...