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

Improvement of the quality of data

• n nutrient inputs with focus on

transboundary loads

Seppo Knuuttila SYKE

The aim of the project “Improvement

• f the
• f the qu

quality ality of dat

• f data

a on

• n nu

nutr trient ient inp input uts s with with focu focus s on

• n 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, , 2nd

nd sa

samp mpling ling in in 20 2013 13

500 1000 1500 2000 2500 3000 20 Nov 19 Nov 18 Nov 18 Nov 21 Nov 20 Nov 21 Nov 21 Nov 21 Nov River mouth (LT) Border (LT/BY) Border (LT/BY) Border (LV/BY) River mouth (LV) River mouth (LV) River mouth (LV) River mouth (LV) River mouth (LV) Nemunas Nemunas Neris Daugava Daugava Barta Venta Lielupe Gauja µg/l

NTOT

NTOT (µg/l), FI NTOT (µg/l), LT NTOT (µg/l), BY NTOT (µg/l), LV

To Tota tal l phosphorus phosphorus, , 2nd

nd sa

samp mpling ling in 20 in 2013 13

20 40 60 80 100 120 140 160 20 Nov 19 Nov 18 Nov 18 Nov 21 Nov 20 Nov 21 Nov 21 Nov 21 Nov River mouth (LT) Border (LT/BY) Border (LT/BY) Border (LV/BY) River mouth (LV) River mouth (LV) River mouth (LV) River mouth (LV) River mouth (LV) Nemunas Nemunas Neris Daugava Daugava Barta Venta Lielupe Gauja µg/l

PTOT

PTOT (µg/l), FI PTOT (µg/l), LT PTOT (µg/l), BY PTOT (µg/l), LV

Diss Dissolve

• lved PO

PO4-P, , 2nd

nd sa

samp mpling ling in in 20 2013 13

10 20 30 40 50 60 70 20 Nov 19 Nov 18 Nov 18 Nov 21 Nov 20 Nov 21 Nov 21 Nov 21 Nov River mouth (LT) Border (LT/BY) Border (LT/BY) Border (LV/BY) River mouth (LV) River mouth (LV) River mouth (LV) River mouth (LV) River mouth (LV) Nemunas Nemunas Neris Daugava Daugava Barta Venta Lielupe Gauja µg/l

PO4-P, dissolved

P PO4 dissolved (µg/l), FI P PO4 dissolved (µg/l), LT P PO4 dissolved (µg/l), BY P PO4 dissolved (µg/l), LV

To Tota tal l phosphorus phosphorus, , th the e Ne Nemu muna nas, , rive river mou mouth th

20 40 60 80 100 120 140 160 180 200 1990 1995 2000 2005 2010 2015 µg/

Tot-P

To Tota tal l nit nitro roge gen, , Ne Nemu muna nas rive river mo mout uth

1000 2000 3000 4000 5000 6000 7000 8000 9000 1990 1995 2000 2005 2010 2015 µg/l

Tot-N

To Tota tal l phosphorus phosphorus, , Ne Nemu muna nas near near LT/BY LT/BY border border

20 40 60 80 100 120 140 160 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 µg/l

Tot-P

To Tota tal l nit nitro roge gen, , th the e Ne Nemu muna nas, , near near LT/BY LT/BY border border

500 1000 1500 2000 2500 3000 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 µg/l

Tot-N

Phosphorus concentrations in November

20 40 60 80 100 River mouth Border µg/l

Nemunas

Tot-P PO4-P 20 40 60 80 100 River mouth Border µg/l

Nemunas-Neris

Tot-P PO4-P 20 40 60 80 100 120 River mouth Border µg/l

Daugava

Tot-P PO4-P

500 1000 1500 2000 2500 3000 Tot-N NO3+NO2-N NH4-N µg/l

Nemunas

River mouth Belarus border 500 1000 1500 2000 2500 3000 Tot-N NO3+NO2-N NH4-N µg/l

Nemunas-Neris

River mouth Belarus border 500 1000 1500 2000 Tot-N NO3+NO2-N NH4-N µg/l

Daugava

River mouth Belarus border

Nitrogen concentrations in November

To Tot-P loa load, , Ne Nemu muna nas+Ne s+Neris ris, , near near LT/BY LT/BY border border

200 400 600 800 1000 1200 LT (1997-2010) BY (2004-11) BNI 2013 Transboundary project 2014 t/a

Tot-P

To Tot-N loa load, , Ne Nemu muna nas+Ne s+Neris ris, , near near LT/BY LT/BY border border

12000 12500 13000 13500 14000 14500 15000 15500 16000 16500 LT (1997-2010) BY (dissolved N 2004- 11) BNI 2013 Transboundary project 2014 t/a

Tot-N

To Tot-P loa load, , Da Daug ugav ava, , near near LV LV/BY /BY border border

500 1000 1500 2000 2500 BY (2004-11) BNI 2013 (RU+BY->LV) Transboundary project 2014 t/v

Tot-P

To Tot-N loa load, , Daugava augava, , near near LV LV/BY /BY border border

5000 10000 15000 20000 25000 BY (dissolved N 2004-11) BNI 2013 (RU+BY->LV) Transboundary project 2014 t/a

Tot-N

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.