Freshwater quality
This indicator shows:
1. Annual median concentrations in rivers of Biological Oxygen Demand (BOD) and ammonium (NH4).
2. Trends in concentrations of orthophosphate and nitrate in rivers, total phosphorus and nitrate in lakes, and nitrate in groundwater bodies.
Units
The concentration of nitrate is expressed as mg nitrate (NO3)/l for groundwater and mg nitrate-nitrogen (mg NO3-N/l) for rivers and orthophosphate and total phosphorus as mg P/l.
http://www.eea.europa.eu/data-and-maps/indicators/freshwater-quality [2].
Data host:
Unit of Measurement:
Link to Data:
Description to get data:
Type of Indicator source:
Geographical Coverage:
Geographical Level:
Same/similar indicators appears in the following sets:
Methodological transparency:
Temporal Coverage:
Frequency of Updates:
- irregular [8]
Indicator developer:
Link to Methodology:
Aggregation level of indicator:
- Index or Composite [10]
Data quality assesment:
Publishing delay:
- more than 3 years [12]
Link to data quality assessment:
Contribution to the green economy:
Cost of accessing data:
- free of charge [13]

