title: Locating POPs Sources with Tree Bark.
abstract: Locating sources of persistent organic pollutants (POPs) to the atmosphere can sometimes be difficult. We suggest that tree bark makes an excellent passive atmospheric sampler and that spatial analysis of tree bark POPs concentrations can often pinpoint their sources. This is an effective strategy because tree bark is lipophilic and readily adsorbs and collects POPs from the atmosphere. As such, tree bark is an ideal sampler to find POPs sources globally, regionally, or locally. This article summarizes some work on this subject with an emphasis on kriged maps and a simple power-law model, both of which have been used to locate sources. Three of the four examples led directly to the pollutant's manufacturing plant.
authors: School of Public and Environmental Affairs, Indiana University , Bloomington, Indiana 47405, United States.
authors: Angela A
authors: AA
authors: Peverly
authors: School of Public and Environmental Affairs, Indiana University , Bloomington, Indiana 47405, United States.
authors: Amina
authors: A
authors: Salamova
authors: School of Public and Environmental Affairs, Indiana University , Bloomington, Indiana 47405, United States.
authors: Ronald A
authors: RA
authors: Hites
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D001272:Atmosphere / Q000032:analysis; D003634:DDT / Q000032:analysis; D004784:Environmental Monitoring / Q000379:methods*; D006843:Hydrocarbons, Chlorinated / Q000032:analysis; D008962:Models, Theoretical; D009930:Organic Chemicals / Q000032:analysis; D024301:Plant Bark / Q000737:chemistry*; D011083:Polycyclic Compounds / Q000032:analysis; D062206:Spatial Analysis
chemical_list: D000393:Air Pollutants; D006843:Hydrocarbons, Chlorinated; D009930:Organic Chemicals; D011083:Polycyclic Compounds; C526360:dechlorane plus; D003634:DDT