🚀 go-pugleaf

-----------------------------------
Postdoctoral position as posted on Postdoc Jobs website:

http://www.PostdocJobs.com
-----------------------------------

Environmental Science Research Center
Indiana University
Prof. Ronald A. Hites

Our research group applies organic analytical chemistry to the
understanding of environmental problems. Most of our work uses mass
spectrometry for the analysis of trace levels of potentially toxic
environmental pollutants. We are looking for one or two post-doctoral
associates to work on one or more of the following projects:

Global Scale Transport of Halogenated Compounds. Halogenated organic
compounds move through the atmosphere to remote regions of the globe.
Our work has focused on semi-volatile organics such as polychlorinated
biphenyls (PCBs), pesticides, and dibenzo-p-dioxins. In collaboration
with several Canadian groups, we are making a long-term set of
measurements of the concentrations of these compounds on the shores of
the Great Lakes. From these data, we will be able to deduce long-term
rates of change in the absolute concentrations and atmospheric
residence times of these compounds.

Reactions of Pollutants with the Hydroxyl Radical and Ozone. In order
to determine the fates of polychlorinated compounds, we are
determining gas-phase, second order rate constants for their reactions
with the hydroxyl radical (OH) and with ozone (O3). In this way, we
can estimate residence times due to these atmospheric removal
pathways. In the future, we plan to measure the gas-phase rate
constants for the reaction of OH with various biogenic olefins.

Anthropogenic Organic Pollutants in the Great Lakes. The Great Lakes
have received a considerable input of toxic organic compounds from
various hazardous waste disposal sites. Other inputs are more diffuse;
for example, deposition from the atmosphere. Our current goal is to
understand the atmospheric transport of toxaphene (polychlorinated
bornanes) and other pesticides to the Great Lakes.

Polybrominated flame-retardants. The use of these compounds is
widespread and completely unregulated (at least, in the United Sates).
Perhaps not surprisingly, the concentrations of these compounds are
increasing in humans with a doubling time of about 5 years. In
collaboration with some colleagues in the IU Medical School, we plan
to measure, over a 3-4 year period, the concentrations of these
compounds in umbilical cord blood of newborn infants.

--------------------------
For more information, please visit PostdocJobs website

http://www.PostdocJobs.com

---------------------------