Group Exercise 1B
Group Exercise IB:
B) Trends in nutrients in rivers from around the world (use data from OECD spreadsheet and compare with data from a Uruguay river).
Use the excel sheet from OECD to analyze and illustrate the following questions:
1. Analyse the trends in nutrient concentrations (nitrate (6C), phosphorus (6D) and ammonium (6E) in rivers around the world covering the period 1980-2004 for the following rivers:
Finland (River Toniojoki)
Denmark (River Suså)
Germany (River Rhein)
France (River Loire)
UK (River Thames)
Spain (River Ebro)
Canada (River Columbia)
Mexico ( River Lema)
USA (River Missisipi)
2. Discuss and explain the trends observed.
3. Calculate the mean concentration (min-max) for the rivers in a Table and discuss and try to explain the differences in nutrient concentration levels observed between the rivers included in your analysis.