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The Lake District is a major sanctuary for the red squirrel and has the largest population in England (out of the estimated 140,000 red squirrels in the United Kingdom, compared with about 2.5 million grey squirrels). [41] The Lake District is home to a range of bird species, [42] and the RSPB maintain a reserve in Haweswater. [43]
The map shows the locations of the lakes with a volume over 4 x 10 6 m³ and gives an indication of the volume of water in each lake. The markers suggest this by showing the size of a drop of water where the volume of the drop would be in proportion to the quantity of water in the lake (the diameter of the drop is proportional to the cube root of the lake's volume).
Although the term "trophic index" is commonly applied to lakes, any surface water body may be indexed. The TSI of a water body is rated on a scale from zero to one hundred. [1] Under the TSI scale, water bodies may be defined as: [1] oligotrophic (TSI 0–40, having the least amount of biological productivity, "good" water quality);
Freshwater environmental quality parameters are those chemical, physical and 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.
The National Water Quality Inventory Report to Congress is a general report on water quality, providing overall information about the number of miles of streams and rivers and their aggregate condition. [65] The CWA requires states to adopt standards for each of the possible designated uses that they assign to their waters.
Drinking water quality standards describes the quality parameters set for drinking water. Water may contain many harmful constituents, yet there are no universally recognized and accepted international standards for drinking water. Even where standards do exist, the permitted concentration of individual constituents may vary by as much as ten ...
Wast Water or Wastwater (/ ˈ w ɒ s t w ɔː t ər /) is a lake located in Wasdale, a valley in the western part of the Lake District National Park, England. The lake is almost three miles (five kilometres) long and more than one-third mile (500 m) wide. It is a glacial lake, formed in a glacially 'over-deepened' valley. It is the deepest lake ...
This study provides the basic database to formulate guidelines for the dredging operations and/or restoration programmes in the lake. [6] The water quality studies carried out by the National Institute of Hydrology during 1999–2001 on physico-chemical parameters (pH, temperature profile, Secchi's transparency, dissolved oxygen, BOD, COD and ...