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The average water tariff in Belgium for large users in 2008 was Euro 8.92 per cubic meter, the second-highest among 14 industrial countries compared in a recent survey. Between 2003 and 2008 water tariffs in Belgium had increased by 80%, the highest increase in that period among all 14 countries. [4]
A biotic index is a scale for showing the quality of an environment by indicating the types and abundances of organisms present in a representative sample of the environment. It is often used to assess the quality of water in marine and freshwater ecosystems.
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.
These efforts have led to Belgium being ranked as one of the top 10 countries (9 out of 132) in terms of environmental protection trends. However, water quality still suffers from a relatively low, yet increasing percentage of sewage waste-water treatment, and from historical pollution accumulated in sediments.
Ecological quality ratios are used to determine the water quality status, representing the relationship between measured biological values observed in water bodies, against the relevant reference conditions. A quality ratio of one represents high ecological status, while zero represents bad ecological status.
Water quality modeling helps people understand the eminence of water quality issues and models provide evidence for policy makers to make decisions in order to properly mitigate water. [1] Water quality modeling also helps determine correlations to constituent sources and water quality along with identifying information gaps. [2] Due to the ...
Bacteriological water analysis is a method of analysing water to estimate the numbers of bacteria present and, if needed, to find out what sort of bacteria they are. It represents one aspect of water quality. It is a microbiological analytical procedure which uses samples of water and from these samples determines the concentration of bacteria ...