Prof. A. Lynn Roberts

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  www.bulletin.uwaterloo.ca/1994/1994%20August%2012%20Fri - [Cached Version]
  Published on: 3/31/2007    Last Visited: 9/7/2009  

  Daily Bulletin, Friday, August 12 ENVIRONMENTAL WINNER: Lynn Roberts, a U.S.-based professor who received her master's degree from the University of Waterloo, has been awarded a 1994 National Science Foundation Young Investigator Award for research in environmental chemistry. Roberts, an assistant professor at The Johns Hopkins University in Baltimore, was one of two researchers in the United States chosen to receive the award that can provide up to $100,000 US a year for five years in federal and private funds. Most of Roberts' research involves investigating contaminants in aquatic systems and developing improved technologies for remedying contaminated groundwater. She received her bachelor's degree in geology from Pomona College, and worked as a consulting hydrogeologist. Roberts earned her master's in contaminant hydrogeology from UW and obtained a PhD in environmental chemistry from the Massachusetts Institute of Technology in 1991.

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  www.sdearthtimes.com/et0203/et0203s18.html - [Cached Version]
  Published on: 2/21/2009    Last Visited: 2/21/2009  

  “This is an important new research area,” says A. Lynn Roberts, who heads the Johns Hopkins team. “Over the past few years, scientists in Europe have found pharmaceuticals in natural waterways, sewage treatment effluents and even in drinking water. Yet until this year there have been virtually no scientific studies examining this issue in the United States. It's important that we begin to look at this because there are many ways in which pharmaceuticals in the environment could produce undesirable effects on aquatic organisms or even humans.”
  
  As an example, Roberts, an associate professor in the Department of Geography and Environmental Engineering, pointed out that popular antidepressants work by altering levels of a neurotransmitter called serotonin. But serotonin also causes many aquatic creatures to spawn. As a result, pharmaceuticals in the wild could upset natural breeding cycles. In humans, pregnant women are warned not to consume medications that could harm their developing fetus. But what if small amounts of these drugs are present in drinking water? “Pharmaceuticals have high biological activity,” Roberts says.
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  Blumenfeld's test, developed in collaboration with Roberts and Venkatraman, will allow researchers in academic labs to test for the presence of particular drugs that may pose a problem in the environment.

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  www.aeesp.org/news/awardsnews.htm - [Cached Version]
  Published on: 3/8/2006    Last Visited: 3/20/2007  

  A. Lynn Roberts, Johns Hopkins

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  www.palmspringsbum.com/bbs/viewtopic.php?p=5215#5215 - [Cached Version]
  Published on: 6/11/2006    Last Visited: 11/10/2008  

  "This is an important new research area," said A. Lynn Roberts, leader of a Johns Hopkins team that began a study to determine the scope of pharmaceutical pollution in the United States. Roberts continued:
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  For instance, Roberts pointed out that antidepressants work by altering levels of serotonin. However, serotonin causes many aquatic creatures to spawn. The result could be that prescription drugs may alter breeding cycles in the wild. Further, drugs can have major impacts on developing fetuses in humans. If small amounts showed up in drinking water, it could cause birth defects or other problems.
  
  "Pharmaceuticals have high biological activity," Roberts said.
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  The researchers studying pharmaceutical pollution at Johns Hopkins include Padma Venkatraman, a postdoctoral fellow; Lynn Roberts, associate professor in the Department of Geography and Environmental Engineering; and Michael Blumenfeld, an undergraduate chemistry major.
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  "This is an important new research area," says A. Lynn Roberts (pictured at right), who heads the Johns Hopkins team. "Over the past few years, scientists in Europe have found pharmaceuticals in natural waterways, sewage treatment effluents and even in drinking water. Yet until this year there have been virtually no scientific studies examining this issue in the United States. It's important that we begin to look at this because there are many ways in which pharmaceuticals in the environment could produce undesirable effects on aquatic organisms or even humans." As an example, Roberts, an associate professor in the Department of Geography and Environmental Engineering, pointed out that popular antidepressants work by altering levels of a neurotransmitter called serotonin. But serotonin also causes many aquatic creatures to spawn. As a result, pharmaceuticals in the wild could upset natural breeding cycles. In humans, pregnant women are warned not to consume medications that could harm their developing fetus. But what if small amounts of these drugs are present in drinking water? "Pharmaceuticals have high biological activity," Roberts says.
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  Undergraduate Michael Blumenfeld and Prof. Lynn Roberts use a gas chromatograph/mass spectrometer to measure extremely small amounts of pharmaceuticals in water samples.
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  Blumenfeld's test, developed in collaboration with Roberts and Venkatraman, will allow researchers in academic labs to test for the presence of particular drugs that may pose a problem in the environment.

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  2004 GRC on Environmental Sciences: Water - [Cached Version]
  Published on: 5/5/2004    Last Visited: 12/11/2004  

  Discussion Leader: A. Lynn Roberts (Johns Hopkins University)

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  250 Scientists Express Grave Concern Over White House... - [Cached Version]
  Published on: 5/18/2001    Last Visited: 6/24/2001  

  A. Lynn Roberts , The Johns Hopkins University

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  250 Scientists Express Grave Concern Over White House... - [Cached Version]
  Published on: 4/21/2006    Last Visited: 4/11/2007  

  A. Lynn Roberts, The Johns Hopkins University

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  Center for Land & Water , Drinking Water and Public... - [Cached Version]
  Published on: 11/18/2007    Last Visited: 9/3/2009  

  However, "as any analytical chemist knows, what you see depends on what you look for," says Lynn Roberts, a professor of environmental chemistry at Johns Hopkins University.

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  Chemical & Engineering News: Science &... - [Cached Version]
  Published on: 12/19/2005    Last Visited: 2/1/2006  

  To qualify as a contaminant of emerging concern, a compound must meet three criteria, according to environmental chemist A. Lynn Roberts of Johns Hopkins University.Appreciable amounts of the compound must be entering or be generated in the environment, the compound must have "a modicum of persistence," and it must exhibit deleterious effects on organisms, Roberts said.Compounds that satisfy these criteria, if not already regulated or considered priority pollutants, should be candidates for environmental monitoring, she noted.
  
  Roberts went on to describe her group's research on monitoring the degradation products of chloroacetamide herbicides.Acetochlor, metolachlor, and other compounds in this class are some of the most widely used agricultural chemicals.In sampling part of the Chesapeake Bay, graduate student Michelle L. Hladik in Roberts' group found that the total concentration of 19 chloroacetamide degradation products, each detected in the parts-per-trillion range, was 20 to 30 times greater than that of the parent compounds (Environ. Sci.
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  Many of these degradates satisfy the emerging contaminants criteria, Roberts said, and they need to be studied further to fully assess the potential impact of chloroacetamides on the environment.But the degradates haven't yet received much attention in the U.S. because regulating degradates is a relatively new practice and there is a lack of commercially available reference standards and validated test methods for their analysis, she pointed out.
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  Civil and environmental engineering professor David L. Sedlak of the University of California, Berkeley, echoed the views of Roberts and Weber.

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  CommUnity of Minds : Scientists Speak on Energy Crisis - [Cached Version]
  Published on: 5/18/2001    Last Visited: 12/5/2004  

  A. Lynn Roberts, The Johns Hopkins University

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