The words contained in this file might help you see if this file matches what you are looking for:

...American journal of environmental and resource economics http www sciencepublishinggroup com j ajere doi issn print x online effect heavy metals nutrients levels ballast waters in commercial ships on chemical quality status seawater the tobruk libya gulf gaith gaballa altohame jalgaif salah ali mahgoub idris rabie maarouf ahmed moursy attia manal mahmoud el naggar port maritime transport authortity ministry chemistry department faculty science university oceanography alexandria egypt studies institute graduate research marine division national fisheries scientific email address corresponding author to cite this article vol no pp received august accepted september published october abstract transportation still generates negative impacts environment including releases water containing aquatic invasive species historical use antifoulants oil spills dry bulk cargo garbage underwater noise pollution ship strikes megafauna risk grounding or sinkings widespread sediment contamination ports d...