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Ecology portal. v. t. e. Freshwater environmental quality parameters are those chemical, physical or biological parameters that can be used to characterise a freshwater body. Because almost all water bodies are dynamic in their composition, the relevant quality parameters are typically expressed as a range of expected concentrations.
1.4% (variable) Balkhash. Kazakhstan. Karaganda Region, Jambyl Region and Almaty Region. 16,400 km 2 (6,300 sq mi) 100 km 3 (24 cu mi) (decreasing) 0.3% (variable) In 1960, the Aral Sea was the world's twelfth-largest known lake by volume, at 1,100 km 3 (260 cu mi). However, by 2007 it had shrunk to 10% of its original volume and was divided ...
According to NOAA, the 2016 predicted size of this dead zone is going to be approximately 5,898 square miles with a nitrate concentration of 146,000 metric tons of nitrate flowing down the Mississippi and Atchafalaya River into the Gulf of Mexico. [5] Nitrate concentrations have increased significantly (by factors of 2 to greater than 5) since ...
From space (November 1994). North is to the left. / 37.000°N 100.133°E / 37.000; 100.133. Qinghai Lake, also known by other names, is the largest lake in China. Located in an endorheic basin in Qinghai Province, to which it gave its name, Qinghai Lake is classified as an alkaline salt lake. The lake has fluctuated in size, shrinking ...
Note that nitrate is more often limiting than phosphate. The Redfield ratio or Redfield stoichiometry is the consistent atomic ratio of carbon, nitrogen and phosphorus found in marine phytoplankton and throughout the deep oceans. The term is named for American oceanographer Alfred C. Redfield who in 1934 first described the relatively ...
Clear Lake (Pomo: Lypoyomi) [2] [3] is a natural freshwater lake in Lake County in the U.S. state of California, north of Napa County and San Francisco.It is the largest natural freshwater lake wholly within the state, with 68 square miles (180 km 2) of surface area.
The nitrate anion is the conjugate base of nitric acid, consisting of one central nitrogen atom surrounded by three identically bonded oxygen atoms in a trigonal planar arrangement. The nitrate ion carries a formal charge of −1. [citation needed] This charge results from a combination formal charge in which each of the three oxygens carries a ...