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MEDPOL; Releases, emissions and sources of pollutants in the Mediterranean region. An assessment of 2003-2008 trends; 2012.
Uploaded on Tuesday 19 Nov 2013
Sources of emissions of nutrients in the Mediterranean region, 2008
Nutrients in seawater present a paradox. Nutrients are, of
course, essential for life. In the oligotrophic environment of the Mediterranean, the ecosystems with the most nutrients are generally the most productive and diverse. At the same time, many
Mediterranean nearshore areas are threatened by nutrient over-enrichment due to coastal and watershed development. Many developed coastal areas suffer particularly from increased
influx of dissolved nitrogen and phosphorus. Sources include
untreated human sewage, animal waste, transportation, fertilisers
and industrial discharges. The largest emitters of nitrogen
are urban wastewater treatment (45 %), livestock farming
(24 %) and the organic chemical industry (2 %).While the main sources of phosphorus are fertiliser manufacturing (40 %), livestock farming (39 %) and urban wastewater treatment (13 %).