Micromolar Nutrient concentration profiles from the long term time series at Station E1 in the Western English Channel from 2002 to 2020.

Results are reported for the analysis of water samples taken from the E1 long-term sampling station (50° 02.0' N; 04° 22.0' W) situated off Plymouth on the south-west coast of England, United Kingdom. The analyses are reported for Nitrate+Nitrite, Nitrite, Silicate and Phosphate concentrations. The dataset begins in 2002 and runs through till 2020, and the data is an ongoing time series. In the early years the samples were taken and frozen to be batch analysed at a later date. Since 2007 the site visits have been on a more regular almost fortnightly sampling protocol, however due to the more 'offshore' nature of the site there are many sampling weeks lost due to bad weather. There are both filtered and unfiltered sample results. A classical picture is seen of generally summer nutrient depletion and with higher winter concentrations of Nitrate, Silicate and Phosphate.