General chemical and physico-chemical elements – Type-specific assessment of rivers in Austria

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Foto Pulkau Foto Gebirgsbach

General chemical and physico-chemical elements – Type-specific assessment of rivers in Austria

Karin DeutschBMLFUW VII 1

[email protected]

2CIS-WS 11-12-June 2007,Paris Type specific assessment of general physico-chemical parameters in Austria/K.Deutsch

WFD Annex V – Quality elements for the classification of ecological status

Biological elements Hydromorphological elements Chemical and physico-chemical elements

supporting the biological elements General

Thermal conditionsOxygen conditionsSalinityAcidification statusNutrient conditions

Specific pollutants

Introduction/1


Introduction/2

WFD Annex V Tab. 1.2.1. Normative definitions Physico-chemical quality elements General conditions

High status: … elements correspond totally or near totally to undisturbed conditions

Good status: … range established to ensure functioning of the type specific ecosystem… ensure achievment of the values specified for the biological quality elements

Ecological Classification Guidance (ECOSTAT 11/2003)


General approach

Formulation of quality standards based on- existing monitoring data - WFD typology- assessment of biological quality elements with WFD compliant methods

Makroinvertebrates – saprobic index as indicator for organic pollution

Phytobenthos – trophic index as indicator for nutrient pollution

FishProject:

Norbert KreuzingerInstitute for Water Quality, Resources and Waste Management Technical University Vienna

6 Ecoregions

abiotische Typisierung

Biological revision

15 bioregions with further differentiation

SI / TI / fish

Ecoregneu.shpAlpenDinarischer WestbalkanKarpatenUngarische TiefebeneZentrales Mittelgebirge

Italien_1.shp

Alpine MolasseBayerisch- Österr. AlpenvorlandBergrückenlandschaft- u. Ausläufer d. ZAFlyschGew. d. inneralpinen BeckenlandschaftenGranit- u. Gneisgebiet d. Böhm. MasseGrazer Feld u.ostmurisches GrabenlandHelvetikumKalkvoralpenNördliche KalkhochalpenÖstliche Flach- u. HügelländerSchweizerisch- Vorarlberger AlpenvorlandSüdalpenUnvergletscherte ZentralalpenVergletscherte Zentralalpen

WFD Annex II - Typology


1 2 3 4 5 6 7 8 9 10 11 12 13 13 13a** 14 15

BIO

REG

ION

Ver

glet

sche

rte Z

entra

lalp

en

Unv

ergl

etsc

herte

Ze

ntra

lalp

en

Ber

grüc

kenl

ands

chaf

t u.

Aus

läuf

er d

er Z

entra

lalp

en

Flys

ch- o

d.

San

dste

invo

ralp

en

Kal

kvor

alpe

n

Kal

khoc

halp

en

Süd

alpe

n

Hel

vetik

um

Alp

ine

Mol

asse

Vor

arlb

erge

r Alp

envo

rland

Bay

eris

ch-ö

ster

reic

hisc

hes

Alp

envo

rland

Gra

nit-

und

Gne

isbe

giet

der

B

öhm

. Mas

se

östl.

Fla

ch- u

nd H

ügel

länd

er

der u

ngar

. Tie

febe

ne -

Win

ter

östl.

Fla

ch- u

nd H

ügel

länd

er

d. u

ngar

. Tie

febe

ne -

Som

mer

Wie

ner B

ecke

n-Fe

ucht

e E

bene

Gra

zer F

eld

und

Gra

benl

and

Süd

liche

inne

ralp

ine

Bec

ken

Seehöhe (m)

Einzugsgebiet (km2)

<10 1,25 1,25 1,00 1,00

10-100101-1000

1001-10000<10 1,25 1,25 1,00 1,00

10-100 1,25 1,25

101-1000 1,50 1,50

1001-10000<10 1,25 1,50 1,25 1,00 1,00 1,50

10-100 1,50* 1,25 1,25

101-1000 1,75 1,75 1,75 1,50 1,50

1001-10000 1,75 1,75 1,75 1,75 1,75 1,75

<10 1,50 1,25 1,25 1,50 1,50 1,50 1,50 1,50

10-100 1,50 1,75 2,00

101-1000 1,75 1,75

1001-10000<10 1,50 1,50

10-100 1,75 1,75 2,00 1,75

101-10001001-10000 2,00

* bei hohem natürlichen organischen Anteil 1,75** Werte für Sommer/Winter gelten wie in 13, Ausnahmen sind angeführt

200-499

<200

1,50

1,50

1,50

>1600

800-1599

500-799

Alpen Mittelgebirge Ungarische Tiefebene Dinar. Balkan

1,751,75

1,75

1,50

1,50

1,75

1,75

2,00

2,00

1,75

1,75

1,50

1,751,75

1,75

1,50

1,50

1,50

1,50

1,50

1,50

1,50

1,501,75

1,75

1,50

1,50

1,75

1,50*

1,50

1,50

1,50

1,50

1,25

1,25 1,25

1,50

1,50 1,50

1,50

1,25

1,25

1,25

1,25

Typology Macroinvertebrates Saprobic index – reference condition


Saprobic index high/good


Typology PhytobenthosTrophic index – reference condition


Trophic index high/good


Data base

Monitoring data of 240 monitoring sites including reference sites for high and good status

2003 – 2005

Makroinvertebrate, Phytobenthos Chemistry monthly


Physico chemical quality elements – selection of parameters

General chemical and physico-chemical

elementParameter High/good based on

Oxygenation conditions BOD5, (Oxygen saturation) Macroinvertebrate – Saprobic index

Nutrient conditions NO3-N Macroinvertebrate – Saprobic index

Soluble reactive phosphor

Phythobenthos – Trophic index

Salinity Chlorid Macroinvertebrate – Saprobic index, Fish

Acidification status pH Fish (CD 78/659/EEC)

(Acid Neutralising

Capacity)

Thermal conditions °C Fish


Oxygenation conditions – BOD5



Oxygenation conditions BOD5 Macroinvertebrate – Saprobic index

• Data Processing• Evaluation BOD/SI • for each bioregion and

high/good selection of monitoring sites which lie within the range boundary - 0,125 SI focus of the definition of boundary values


Selection of relevant sites

Monitoring site Bioregion SI referenceHigh/good

SI observed Site used for standard

determinationFW 39831200 Südalpen 1,5/2,03 1,8 No – not within the

range

FW 46996310 Südalpen 1,5/2,03 1,4 Yes - high


BOD – 90 percentile BOD mg/l Statistical data not available for all types


Clusteranalysis

Clusteranalysis identifies similar bioregions

Expertjudgment


BOD – Proposal quality standard Proposal quality standard 2007 - values under discussion ! BOD/mg/l Compliance checking-monthly data, 1 or 2years - 90 percentile


Nutrients



Nutrient conditions PO4-P (SRP) Phytobenthos – Trophic index (TI)

NO3-N Macroinvertebrate – Saprobic index

Data Processing Phytobenthos - Trophic index - Definition high and good for each bioregion selection of monitoring sites within the

range boundary - 0,125 TI focus of the definition of boundary values

exeption NO3-N: no nitrogen limitation in austrian rivers, high status saprobic index

NH4-N, NO2-N – QS based on toxicology


SRP or P(tot)

Why SRP?

Interrelation SRP – TI high concentration strong indication for high TI low concentrations don´t mean always low TI Additional limitation factors – light?


SRP – Proposal quality standard

Proposal quality standard 2007 -values under discussion! SRP/mg/l Compliance checking-monthly data, 1 or 2years - 90

percentile


NO3-N Proposal quality standard

Proposal quality standard 2007 -values under discussion ! NO3-N/mg/l Compliance checking-monthly data, 1 or 2years - 90 percentile High status – values based on SI Good status only differentation between si-reference no bioregion


Salinity

High status based on saprobic index ?? Good status ??


element

Parameter High/good based on

Salinity ChloridMacroinvertebrate – Saprobic

index, Fish ?


Acidification, Thermal conditions

Thermal condition – TemperatureHigh status based on demands of typespecific fishpopulationGood status – Fish Protection Directive (CD 78/659/EEC)Qualitity standards - still open

General chemical and physico-chemical element

Parameter High/good based on

Acidification status pH Fish (CD 78/659/EEC)

(Acid Neutralising Capacity)

Thermal conditions °C Fish

Acidification status – ph based on Fish Protection Directive (CD 78/659/EEC)


Ecological status of monitoring site

Assessment of ecological status of monitoring sites requires biological and chemical data

General chemical and physico-chemical elements: Under discussion Compliance checking requires monthly data from 2 years 90 percentile Every single parameter counts

Biological qualitiy elements

Worst case


PO4-P - Algen (TI)exceedance QS good status

0

5

10

15

20

25

AM AV BR FH FL GF GG IB KH KV SA UZA VAV VZA

num

ber s

ampl

ing

site

s

AImVO nicht

PO4-P nicht eingehalten

Algen nicht eingehalten

Conformance TI - SRP

Algae = SRP 38%

Algae 54%

SRP 8%


Thank you for your attention

Thank you for your attention

General chemical and physico-chemical elements – Type-specific assessment of rivers in Austria

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