CHAPTER 4 • Methods and Tools to Support eZM
77
• The regulation function, the ability to create optimal living conditions for mankind.
Typical examples of disturbances are pollution, deforestation and exploitation of
mangroves.
For each actor, its effect on the various issues can be defined. These effects can be
categorized in terms of volumetric units and concentrations, using appropriate pressure indicators such as volume of sand to be mined, volume and BOD of effluent discharges, chemical; content etc. In order to assess the state of the European coast, the
National Institute for Coastal and Marine Management/RlKZ as part of the European
Topic Center on Marine and Coastal Environment has proposed a list of issues to be
used for a first assessment. This list is shown in Table 4.1.
4.4.3 \
Step 2:The State of the Environment
The Pressure State Response approach aims at an optimal use of the three sources of
capital as a means to obtain a well balanced development, in which both economic and
ecological values are equally well treated. To that end the performance of the production system ("statement of loss and profit") and the state of the production system (its
"balance value") should be expressed in performance - and state indicators, which can
be compared to criteria. In order to be able to define state indicators, the production
system proper should be monitored and the monitoring results should be evaluated.
This is shown schematically in Fig. 4.4b. Representative performance and state indiTable 4.1. Environmental issues of importance for coastal water quality
Issue
Criteria
General Eu· Multiple
Trans·
Aelevant Data
Seledion
ropean coa- source
boundary issues
avail·
forth.
stal issue
impact
ability
pilot study
Eutrophication/saprobiation
+
+
+
+
+,1
+
Heavy metal pollution
+
+
+
+
+,1
+
Antibiotics
(Persistent) organic compound pollution
+
+
+
+
Oil pollution
+
+
+
+
Introduction of foreign species
+
+
+
Loss and degradation of h(lbilats
+
+
+
+.5
+
- Thermal pollution
+
- Resource depletion groundwater
+
+
+,3
+
- Resource depletion gravel
+
- Coastal erosion
+
(+)
+
- Physical disturbance of coastal waters
Climate change
+
+
+
+,4
+
Waste
+
+
+
Overfishing
+
+
+
+
+,2
+
Loss of biodiversity and genetic resources
+
+
+
+
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