Two sediment cores were collected from a marina in the San Francisco Bay to characterize historical sediment contamination resulting from the direct discharge of industrial wastewater from Naval Air Station Alameda. Depth profiles of trace metals, petroleum hydrocarbons, and radionuclides were determined with a 12-cm spacing down to a depth of 120 cm. The chronology of sediment accumulation is ...

Background and Purpose: The contamination by potentially toxic element (PTE) is a common environmental issue in worldwide rivers. The present study examined PTEs concentration in sediments of Talar River which is one of the main rivers in the Sothern Caspian Basin. Materials and Methods: The sediment samples (n= 44) were collected from top 0–5 cm of surface sediment in the main channel and flo...

Different types of sediment trap have been introduced so far to be used in erosion measuring stations, each with its own advantages and disadvantages in trapping aeolian particles. These traps have different collection and retention efficiency due to aerodynamic conditions. Some characteristics such as isokinetic feature of the trap, collection efficiency, time needed to download sediment, capa...

Interacting river discharge, tidal oscillation, and tropical rainfall across the 22,000 km Orinoco delta plain support diverse fresh and brackish water ecosystems. To develop environmental baseline information for this largely unpopulated region, we evaluate major coastal plain, shallow marine, and river systems of northeastern South America, which serves to identify principal sources and contr...

Sediment toxicity tests are frequently used to assess sediment quality along the west coast of North America. However, the use of sediment toxicity information to assist in the development of management actions (e.g., source control, sediment remediation) is limited by the difficulty of determining which contaminants are responsible for the toxic effects. An investigative process known as a Tox...

Sediments have long been recognised as a source of contaminants in marine environments and, as a result, interim sediment quality guidelines were included in the ANZECC/ARMCANZ (2000) water quality guidelines. While toxicity tests with benthic temperate species have been developed and incorporated into marine sediment toxicity assessments over the past 10 years, there has been limited test deve...

This study is an investigation into the roles of wildfire and changing agricultural practices in controlling the inter-decadal scale trends of suspended sediment production from semi-arid mountainous rivers. In the test case, a decreasing trend in suspended sediment concentrations was found in the lower Salinas River, California between 1967 and 2011. Event to decadal scale patterns in sediment...

The most important raw materials for the building industry are natural quarried rocks. Preservation of this non-renewable resource needs valorizing products, vast majority which is currently considered as waste. Among these, dredged sediments have gained much attention and should play a key role in preservation. aim paper to achieve resource-efficient evaluation re-use fine-grained heavy clay b...

The goal of this project is to produce an open-source model that couples hydrodynamics (circulation and waves), sediment transport, and morphodynamics. The need and value for such a model has been well established by previous NOPP-supported planning efforts (Sherwood et al., 2000; 2002) and the feasibility of the proposed approach has been demonstrated by incorporation of sediment-transport and...