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Table 3 Estimated annual nutrient loadings on the Fleet (from [33]).

From: Hindcasting of nutrient loadings from its catchment on a highly valuable coastal lagoon: the example of the Fleet, Dorset, UK, 1866–2004

Source Nitrogen Phosphorus
  t yr-1 % t yr-1 %
Point sources (STWs) 1.5 – 3.2 1 – 2.5 0.48 – 1.29 12 – 39
Livestock 44.4 34 1.54 37 – 47
Synthetic Fertilisers 64.4 49 – 50 0.73 18 – 23
Background 18.5 14 0.42 10 – 13
Abbotsbury Swannery 0.3 0.2 0.06 2
Other bird species 0.2 0.1 0.06 2
Total 129.3–131.0   3.29–4.10