Tag Archives: Research

Researchers Evaluate Bioretention

Bioretention is one of the most popular green infrastructure practices in many areas throughout the U.S. That is evident in the Chesapeake Stormwater Network’s recently released survey of stormwater management practices in the Chesapeake Bay Watershed, where bioretention was the most implemented practice over the last year. In fact, bioretention was implemented almost twice as […]

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MnDOT Releases Research on Stormwater Pond Skimmers and Swales

In August, Minnesota Department of Transportation (MnDOT) Research Services & Library released a report “Assessing and Improving Pollution Prevention by Swales.” Researchers found substantial spatial variability in swale infiltration rate. This report discusses how roadside swales can be used to their full pollution prevention potential and cost-effectiveness, covering maintenance schedules and efforts. They also developed […]

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Danish Researchers Look at Stormwater Management in Africa

Urban flooding, drought, and water scarcity are major climate change hazards affecting African cities like Addis Ababa and Dar es Salaam. A Danish research team from the University of Copenhagen is designing and testing the same concept used to manage stormwater in Copenhagen in these African cities. The basic idea is to delay and infiltrate […]

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Wetlands Reduce Flooding and Related Damages, Study Says

In a new study announced June 11, researchers from the University of Saskatchewan Centre for Hydrology show that wetlands can reduce flooding and damage to communities. “Our results show a direct link between wetland drainage and peak streamflows during a flood,” said John Pomeroy, director of the Centre for Hydrology. “By restricting wetland drainage in […]

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Climate Change Already Is Affecting Coastal and Island Communities

According to a recent analysis by Reuters, coastal flooding along the eastern U.S. has increased dramatically over the past four decades with triple the number of days per year that tidal waters reached or exceeded National Oceanic and Atmospheric Administration flood thresholds. Water now reaches flood levels on average 20 days per year in many […]

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Level of Toxics in European Freshwater Greater than Anticipated

European Union member states have called for substantial improvements in freshwater quality by 2015 through the Water Framework Directive. While the European Environment Agency recently released a report on the excellent water quality of swimming beaches, a large-scale study by the Institute for Environmental Sciences Landau together with the Helmholtz Centre for Environmental Research, both […]

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Iron Could Limit Spread of Dead Zones, Study Says

In late May, a study led by researchers at Oregon State University (OSU) and published in the journal Nature Geosciences suggests that iron released from continental margin sediments could limit the spread and duration of hypoxic areas, also known as dead zones. The iron may act as a natural limiting switch, keeping ocean systems from […]

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Report Covers Dissolved Metals Removal from Roadway Stormwater

In mid-May, the National Cooperative Highway Research Program (NCHRP) released the report “Measuring and Removing Dissolved Metals from Stormwater in Highly Urbanized Areas.” The issue of dissolved metals is coming to the forefront in stormwater management and is an increasing concern for regulatory agencies. This is especially true in urbanized areas with limited space for […]

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NOAA and USGS Release New Datasets

The National Oceanic and Atmospheric Administration (NOAA) Coastal Change Analysis Program (C-CAP) updates its national land cover and land change information every five years. NOAA recently released data on coastal intertidal areas, wetlands, and adjacent uplands gathered from 2010 to 2011 in U.S. coastal regions. The new data currently is available for California, Oregon, and […]

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PAH Decrease Due to Austin Coal-Tar Sealant Ban

The 2006 prohibition on the use of coal-tar-based pavement sealants in Austin, Texas, has resulted in a substantial reduction in polycyclic aromatic hydrocarbon (PAH) levels, according to a new study published in the scientific journal Environmental Science and Technology by the U.S. Geological Survey (USGS). PAHs are an environmental health concern because several are probable […]

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