Ecological Status Transitional Waters 2015-2020 [ARPA Lazio]
Description
The classification of the ecological status of transitional waters is based on the use of biological indicators and supporting physico-chemical elements. The biological indicators most representative of the pressures typical of transition environments (nutrient enrichment, organic load, pollutants and substrate instability) are: macrophytes, benthic macroinvertebrates and phytoplankton. The chemical-physical elements in support of biological ones are: dissolved inorganic nitrogen (DIN) and reactive phosphorus (P-PO4) expressed as an annual average value and dissolved oxygen. Two quality classes are identified for these parameters: “Good” and “Sufficient”. The ecological status of the water body is classified according to the lowest class of these indicators according to the schemes provided for by Ministerial Decree 260/2010; there are five quality classes into which it can fall: "High", "Good", "Sufficient", "Poor" and "Bad".
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Tags
- transizione
- acqua
- global
- stato
- rndt
- eu