As part of an ongoing study, the water quality of the Susquehanna River between Otsego Lake and its junction with Oaks Creek was monitored during the summer of 1997. This monitoring program is designed to determine the assimilative capacity of the Susquehanna River below the point of discharge of the Village Sewage Treatment Plant. The study helps to detect point sources of pollution. The water...

Zoning the pollution of a river may be the first or even the most important step in water quality management. In order to resolve its pollution, fuzzy clustering analysis may be used whenever a composite classification of water quality incorporates mutiple parameters In such cases, the technique may be used as a complement or an alternative to comprehensive assessment. In fuzzy clustering ...

this 4x2 factorial study compared the effect of four sites (a=siphon as upstream, andb=shahdera, c=sunder and d= balloki as 3 downstream sites) during low and high flow seasons of river ravion metal cconcentrations in muscles from cirrhinus (c) mrigala, a bottom feeder carp. while weight andlength of studied specimens did not differ significantly (p>0.05). overall metal accumulations appeared i...

twenty samples of the recent sediments were collected from the tigris river and some of its tributaries of northern iraq and twelve samples from the miocene and quaternary sediments. the study is conducted to define and assess the paleoenvironmental pollution by some heavy metals in these sediments in order to elucidate the probable source rocks and the main mineral phases suggested to be a sou...

Water and sediment samples were collected from six different stations, located along the Nil River between February and June 2015. Concentrations of cadmium, lead, zinc, and copper were determined. The extent of the sediment pollution was assessed, using the multiple pollution indices, namely contamination factor (CF), pollution load index (PLI), and the geoaccumulation index (Igeo). The result...

River Ganga is one of the prime sacred National Rivers of India, closely associated with economic, social, and cultural heritage of Indian people. Recently, it has been subjected to immense degradation and pollution as a result of receiving huge amounts of domestic and industrial wastewater as well as religious ritual activities and surface runoff. The present study attempts to study spatial an...

The “Flume Room” The University of Michigan has created a specialized laboratory containing 150 artificial mini-streams, or “flumes,” that mimic a variety of river conditions as closely as possible. The flumes are populated with rocks, sediment, biota, and more than 3,000 gallons of water from the Huron River. The goal is to better understand how different stressors—nutrient and chemical pollut...

The microbiological quality of the River Riato (Spain) was evaluated. The influence of cattle that roam free in the warm season was marked. The degree of faecal pollution in the river was higher than predicted from the river basin geographical characteristics. The counts of faecal indicators greatly increased when the cattle were allowed to roam free. Counts of enterobacteria and faecal colifor...

Erratum: “Nutrient Pollution: A Persistent Threat to Waterways” The November 2014 News article “Nutrient Pollution: A Persistent Threat to Waterways” [Environ Health Perspect 122:A304–A309; http://dx.doi.org/10.1289/ehp.122-A304] accidentally used the same map to depict both phosphorus and nitrogen pollution in U.S. waterways. In addition, the caption for the phosphorus map incorrectly stated t...