Improvement of the quality of data on nutrient inputs with focus on - PowerPoint PPT Presentation

Improvement of the quality of data on nutrient inputs with focus on transboundary loads Seppo Knuuttila SYKE

The aim of the project “Improvement of the of the qu quality ality of dat of data a on on nu nutr trient ient inp input uts s with with focu focus s on on transboundary transboundary loads” was was:  to support the assessment of the share of transboundary nutrient loads originating from the Daugava/Western Dvina and Nemunas/Neman catchments in the total inputs to the Baltic Sea,  to support compilation and assessment of nutrient load data (PLC), improve its quality, completeness and consistency, and  to support intercalibration exercises including testing of sampling methodology, and application of common quality assurance methods for collection of data in participating countries (Latvia, Lithuania and Belarus).

Sampling sites of the project in May and November 2013

To Tota tal l nit nitro roge gen, , 2 nd nd sa samp mpling ling in in 20 2013 13 NTOT 3000 2500 2000 µg/l 1500 NTOT (µg/l), FI NTOT (µg/l), LT 1000 NTOT (µg/l), BY NTOT (µg/l), LV 500 0 20 Nov 19 Nov 18 Nov 18 Nov 21 Nov 20 Nov 21 Nov 21 Nov 21 Nov River mouth Border Border Border River mouth River mouth River mouth River mouth River mouth (LT) (LT/BY) (LT/BY) (LV/BY) (LV) (LV) (LV) (LV) (LV) Nemunas Nemunas Neris Daugava Daugava Barta Venta Lielupe Gauja

To Tota tal l phosphorus phosphorus, , 2 nd nd sa samp mpling ling in 20 in 2013 13 PTOT 160 140 120 100 µg/l 80 PTOT (µg/l), FI PTOT (µg/l), LT 60 PTOT (µg/l), BY PTOT (µg/l), LV 40 20 0 20 Nov 19 Nov 18 Nov 18 Nov 21 Nov 20 Nov 21 Nov 21 Nov 21 Nov River mouth Border Border Border River mouth River mouth River mouth River mouth River mouth (LT) (LT/BY) (LT/BY) (LV/BY) (LV) (LV) (LV) (LV) (LV) Nemunas Nemunas Neris Daugava Daugava Barta Venta Lielupe Gauja

Diss Dissolve olved PO PO 4 -P, , 2 nd nd sa samp mpling ling in in 20 2013 13 PO 4 -P, dissolved 70 60 50 40 µg/l P PO4 dissolved (µg/l), FI 30 P PO4 dissolved (µg/l), LT P PO4 dissolved (µg/l), BY 20 P PO4 dissolved (µg/l), LV 10 0 20 Nov 19 Nov 18 Nov 18 Nov 21 Nov 20 Nov 21 Nov 21 Nov 21 Nov River Border Border Border River River River River River mouth (LT) (LT/BY) (LT/BY) (LV/BY) mouth (LV) mouth (LV) mouth (LV) mouth (LV) mouth (LV) Nemunas Nemunas Neris Daugava Daugava Barta Venta Lielupe Gauja

To Tota tal l phosphorus phosphorus, , th the e Ne Nemu muna nas, , rive river mou mouth th Tot-P 200 180 160 140 120 µg/ 100 80 60 40 20 0 1990 1995 2000 2005 2010 2015

To Tota tal l nit nitro roge gen, , Ne Nemu muna nas rive river mo mout uth Tot-N 9000 8000 7000 6000 5000 µg/l 4000 3000 2000 1000 0 1990 1995 2000 2005 2010 2015

To Tota tal l phosphorus phosphorus, , Ne Nemu muna nas near near LT/BY LT/BY border border Tot-P 160 140 120 100 µg/l 80 60 40 20 0 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014

To Tota tal l nit nitro roge gen, , th the e Ne Nemu muna nas, , near near LT/BY LT/BY border border Tot-N 3000 2500 2000 µg/l 1500 1000 500 0 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014

Phosphorus Daugava 120 concentrations 100 in November 80 µg/l 60 40 20 0 Nemunas River mouth Border 100 Tot-P PO4-P 80 60 Nemunas-Neris µg/l 100 40 80 20 60 µg/l 0 River mouth Border 40 Tot-P PO4-P 20 0 River mouth Border Tot-P PO4-P

Nitrogen concentrations Daugava 2000 in November 1500 µg/l 1000 500 Nemunas 0 3000 Tot-N NO3+NO2-N NH4-N 2500 River mouth Belarus border 2000 Nemunas-Neris µg/l 1500 3000 1000 2500 500 2000 µg/l 0 1500 Tot-N NO3+NO2-N NH4-N 1000 River mouth Belarus border 500 0 Tot-N NO3+NO2-N NH4-N River mouth Belarus border

To Tot-P loa load, , Ne Nemu muna nas+Ne s+Neris ris, , near near LT/BY LT/BY border border Tot-P 1200 1000 800 t/a 600 400 200 0 LT (1997-2010) BY (2004-11) BNI 2013 Transboundary project 2014

To Tot-N loa load, , Ne Nemu muna nas+Ne s+Neris ris, , near near LT/BY LT/BY border border Tot-N 16500 16000 15500 15000 14500 t/a 14000 13500 13000 12500 12000 LT (1997-2010) BY (dissolved N 2004- BNI 2013 Transboundary project 11) 2014

To Tot-P loa load, , Da Daug ugav ava, , near near LV LV/BY /BY border border Tot-P 2500 2000 1500 t/v 1000 500 0 BY (2004-11) BNI 2013 (RU+BY->LV) Transboundary project 2014

To Tot-N loa load, , Daugava augava, , near near LV LV/BY /BY border border Tot-N 25000 20000 15000 t/a 10000 5000 0 BY (dissolved N 2004-11) BNI 2013 (RU+BY->LV) Transboundary project 2014

Discussion of lessons learned and additional data needs  The Workshop discussed how to deal with quality assurance and quality control (QA/QC) related to transboundary loads and the importance to ensure comparability of analysis results of laboratories in participating countries. Although several countries already have bilateral agreements to share data, there is still room for improved cooperation.  It was noted that in many cases there are available data but that sharing and exchanging data is a challenge that needs to be addressed. The challenge ahead is to consider how all the data can be accessed and made use of by the different countries and for HELCOM purposes

 There was a suggestion that the development of a portal for data exchange between countries would be helpful. It was noted that the new modernized PLC- water database will be able to handle transboundary loads and this will also facilitate access to transboundary input data.  The Workshop suggested that more regular and coordinated monitoring of transboundary inputs should be established to determine retention in transboundary and border rivers and to provide better information as support for follow-up of the BSAP nutrient reduction scheme.