© Author(s) 2007. This work is licensed under a Creative Commons License. Atmospheric Chemistry and Physics GEM/POPs: a global 3-D dynamic model for semi-volatile persistent
Abstract. Global transports and budgets of three PCBs were investigated with a 3-D dynamic model for semi-volatile per-sistent organic pollutants – GEM/POPs. Dominant pathways were identified for PCB transports in the atmosphere with a transport flux peaking below 8 km for gaseous and 14 km for part...
| Main Authors: | , , , , |
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| Format: | Text |
| Language: | English |
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2007
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| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.611.3549 http://www.atmos-chem-phys.org/7/4015/2007/acp-7-4015-2007.pdf |
| Summary: | Abstract. Global transports and budgets of three PCBs were investigated with a 3-D dynamic model for semi-volatile per-sistent organic pollutants – GEM/POPs. Dominant pathways were identified for PCB transports in the atmosphere with a transport flux peaking below 8 km for gaseous and 14 km for particulate PCB28, and peaking below 4 km for gaseous and 6 km for particulate PCB180. The inter-continental trans-ports of PCBs in the Northern Hemisphere (NH) are dom-inated in the zonal direction with their route changes regu-lated seasonally by the variation of westerly jet. The trans-port pathways from Europe and North Atlantic contributed the most PCBs to the Arctic. Inter-hemispheric transports of PCBs originated from the regions of Europe, Asia and North America in three different flow-paths, accompanying with easterly jet, Asian monsoon winds and trade winds. PCBs |
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