Bücher der Reihe Pollution Monitoring Series

Evaluation of the critically reviewed and vetted data indicates that many of the previously accepted generalisations about the toxicity of metals to aquatic life are invalid: for instance the assumption that salmonid species of fish are more susceptible to these metals than coarse fish, or that increased water hardness decreases toxicity.

Trace metals occur as natural constituents of the earth's crust, and are ever present constituents of soils, natural waters and living matter. When the interactions between trace metals and plants are considered, one must take full account of the known chemical properties of each element.

Trace metals occur as natural constituents of the earth's crust, and are ever present constituents of soils, natural waters and living matter. When the interactions between trace metals and plants are considered, one must take full account of the known chemical properties of each element.

The preface of a book often provides a convenient place in which the author can tender his apologies for any inadequacies and affords him the facility to excuse himself by reminding the reader that his art is long but life, or at least the portion of it in which he has the opportunity for writing books, is short.

The job of the responsible zoologist should be to assess or attempt to predict the consequences of any effluent or other environmental disturbance as objectively as possible, bearing in mind both the needs of conservation and the reasonable demands of man.