**5. Aims of this book**

Surveillance provides some of the scientific basis for standard development and application. The methodology of marine pollution control is governed by algorithms and models.

A monitoring strategy should be put in place, coupled with an environmental assessment concept, through targeted research activities in areas identified at the local and regional level. This concept will make it possible to diagnose the state of "health" of these zones and consequently to correct the anomalies.

### **6. The main objectives are:**

#### **6.1 Task I: ecological monitoring**

Analysis and determination of environmental concentrations of pollutants and their transfer to coastal waters involves the developing ecological parameters to detect changes in ecosystem health. This includes new research on the field ecological status of species in addition to conventional monitoring and assessment of the ecological status of coastal waters.

## **6.2 Task II: risk assessment**

The application of risk assessment techniques will make it possible to evaluate the impact of substances on the marine ecosystem.

Using bioaccumulation and biomagnification measurements, the potential effects of pollutants detected on humans and local populations of common terns will be assessed.
