Author: Duke University

  • Heavy Oils and Petroleum Coke Raising Vanadium Emissions

    Human emissions of the potentially harmful trace metal vanadium into Earth’s atmosphere have spiked sharply since the start of the 21st century due in large part to industry’s growing use of heavy oils, tar sands, bitumen and petroleum coke for energy, a new Duke University study finds.

  • Some Coal Ash from China Too Radioactive for Reuse

    Manufacturers are increasingly using encapsulated coal ash from power plants as a low-cost binding agent in concrete, wallboard, bricks, roofing and other building materials. But a new study by U.S. and Chinese scientists cautions that coal ash from high-uranium deposits in China may be too radioactive for this use.

  • Survey Gauges Top Leaders Views of Environmental Policy Landscape

    In spring 2017, researchers at North Carolina State University (NCSU) and Duke University’s Nicholas Institute for Environmental Policy Solutions set out to determine what and how a broad cross-section of thought leaders at private corporations, nonprofits, government agencies, and universities think about emerging environmental trends, risks, and opportunities.Through the Emerging Environmental Issues Survey, the researchers aimed…

  • Rush Hour Pollution May Be More Dangerous Than You Think

    The first in-car measurements of exposure to pollutants that cause oxidative stress during rush hour commutes has turned up potentially alarming results. The levels of some forms of harmful particulate matter inside car cabins was found to be twice as high as previously believed.Most traffic pollution sensors are placed on the ground alongside the road…

  • Ozone Pollution Connected to Cardiovascular Health

    Exposure to ozone, long associated with impaired lung function, is also connected to health changes that can cause cardiovascular disease such as heart attack, high blood pressure and stroke, according to a new study of Chinese adults.These findings, by a team from Duke University, Tsinghua University, Duke Kunshan University and Peking University, appear in the…

  • Helping robots learn to see in 3-D

    Autonomous robots can inspect nuclear power plants, clean up oil spills in the ocean, accompany fighter planes into combat and explore the surface of Mars.Yet for all their talents, robots still can’t make a cup of tea.That’s because tasks such as turning the stove on, fetching the kettle and finding the milk and sugar require…

  • High Selenium Levels Found in Fish in N.C. Lakes Receiving Coal Ash Waste

    A new Duke University study has found high levels of selenium in fish in three North Carolina lakes receiving power plants’ coal ash waste.“Across the board, we’re seeing elevated selenium levels in fish from lakes affected by coal combustion residual effluents,” said Jessica Brandt, a doctoral student in environmental health at Duke’s Nicholas School of…

  • Coastal Marshes More Resilient to Sea-Level Rise Than Previously Believed

    Accelerating rates of sea-level rise linked to climate change pose a major threat to coastal marshes and the vital carbon capturing they perform. But a new Duke University study finds marshes may be more resilient than previously believed. 

  • Warming seas decrease sea turtle basking

    Green sea turtles may stop basking on beaches around the world within a century due to rising sea temperatures, a new study suggests. Basking on sun-warmed beaches helps the threatened turtles regulate their body temperatures and may aid their immune systems and digestion. By analyzing six years of turtle surveys and 24 years of satellite data, researchers…