The objective of our project is to monitor the pollution of the seaside environment using magnetism as a working method. The following types of measurements were made:1. In situ: magnetic susceptibility measurements2. In laboratory: magnetic susceptibility measurements, magnetic hysteresis, curie temperature.We have also monitored this year: beaches in our town and trees in the areas adjacent to the main seaside highway. The main conclusion is that measurements of magnetic susceptibility can be used in the study of environmental qualities. The susceptibility level can be used as an indicator of environmental pollution. Comparing the measurements in situ in the laboratory showed that measurements in situ are much cheaper and simpler to achieve and lead to very good results.