twenty water samples from a river system in southern caspian sea basin werecollected and analyzed for physicochemical parameters and metals (cu, zn, as, cd, pb, ni andmn). in order to evaluate the risk potential of metal pollution in river water, use of two indicesnamely heavy metal pollution index (hpi) and contamination index (cd) accompanied by clusteranalysis was taken in to consideration. ...

Since the emergence of humanity, marine environment has provided a safety net in many ways, fostered socio-economic development, creating links between states, continents. In same time, it represents priority source food for considerable percentage population. The also creates solutions to current global problems, as potential sustainable energy future. recent decades, stability this ecosystem ...

This paper presents the results of preliminary assessment of water quality along Red Sea coast adjoining Jeddah, Saudi Arabia. Jeddah is a major city with a population of over 2.6 million and an area 1,200 km. To study the impacts, samples of the Red Sea were collected from 24 important locations near Jeddah and analyzed in the laboratory for various water quality parameters. These parameters i...

The authors have listed 85 species of macrophytes that have probably been introduced to the Mediterranean. Among them, nine species can be considered as invasive, i.e., playing a conspicuous role in the recipient ecosystems, taking the place of keystone species and/or being economically harmful: Acrothamnion preissii, Asparagopsis armata, Lophocladia lallemandii, Womersleyella setacea (Rhodophy...

The Nonproliferation Review/Fall 1997 40 Ronald B. Mitchell is an assistant professor in the Department of Political Science, University of Oregon. His book Intentional Oil Pollution at Sea: Environmental Policy and Treaty Compliance, published in 1994 by The MIT Press, received the 1995 International Studies Association Sprout Award for best book on international environmental politics. He has...