|Chernyak, S - NBS/DOI|
Submitted to: American Chemical Society National Meeting
Publication Type: Abstract Only
Publication Acceptance Date: April 8, 1999
Publication Date: N/A
Technical Abstract: It has long been known that most persistent organic pollutants (POPs) an certain pesticides can be transported long distances through the atmosphere. Because of this long range transport these chemicals turn up at sites well removed from their initial application. Documented evidence is now sufficient to begin to ask the next series of questions, i.e., why certain chemicals and not others, what mechanisms lead to this widespread dispersion and how can newer chemicals be selected and/or designed to safeguard against this property? Arctic regions are especially vulnerable to loading from these chemicals. These processes are popularly defined as global "cold condensation." Categorization of chemical properties coupled to modeling have allowed several characteristics of this process to be defined. However, recently newer chemicals have been added to the list, including some currently-used pesticides, that challenge some of the generalizations.