Research Abstracts

The Alqueva dam, constructed in the Portuguese section of the Guadiana River, is the centre of a multipurpose project under development in Alentejo, Portugal, which includes strategic water storage, hydropower production, irrigation and urban water supply. Aiming to adequately evaluate nutrient cont

The amounts of atmospheric depositions were measured by two types of bulk deposit-samplers (BDS). One of them was a commonly used dry-type BDS mounted with a conical polyethylene (PE) funnel on a PE-reservoir (d-BDS). The second BDS was a wet-type BDS which was devised to evaluate the nutrient loads

The comparison of eutrophication development in two Brazilian water supply reservoirs has shown the convenience of adopting different management strategies according to climatic conditions and to the balance between nutrient concentrations. These techniques should be directed to the prevention of cy

Automobile traffic, although extremely important to human society has imparted a growing environmental impact through automobile emissions. For that reason, some studies have investigated origin specification methods for polycyclic aromatic hydrocarbons (PAHs) in road dust and sediments. Typically,

This paper considers the importance of automobiles as a continuing source of persistent pollutants in the environment, using the UK as a case study. The mass of lead, copper, zinc and polycyclic aromatic hydrocarbons (PAHs) being released by automobiles in the UK is estimated. It is shown that as ot

The water framework directive master plan (WFDMP) in Ireland is being developed jointly by the Department of the Environment, Heritage and Local Government (DEHLG), the Environmental Protection Agency (EPA), the River Basin District (RBD) competent authorities (namely lead Local Authorities) and sta

Agricultural runoff contributes with significant amounts of nitrogen (N) to rivers and lakes causing water quality problems. Constructed wetlands (CWs) in first- and second-order streams reduce downstream loading of nutrients through mechanisms such as sedimentation, uptake by vegetation and microbi

There is increasing concern about environmental pollution by diffuse emissions of various environmental hazards emitted by transportation activities. For the first time substances released by railways to the environment were investigated. We considered the significant sources and the amounts emitted

Extensive effort through point source controls, such as the construction of wastewater treatment plants, has been continuously made not only to improve the water quality but also to protect the water resources since 1990 in the Han River basin, Korea. However, it is difficult to maintain biochemical

The study analyzes the source apportionment of a river basin, the Dese-Zero river, located within the NorthEastern part of the Venice Lagoon Watershed (VLW), Italy. The Dese-Zero river basin is characterised by a very intensive agriculture and landfarming system. To assess the source apportionment,