Reactive Chlorine Emissions Inventory (RCEI) from the Global Emissions Inventory Activity (GEIA), IGBP/IGAC

The Reactive Chlorine Emissions Inentory (RCEI) is one of the projects
of the Global Emissions Inventory Activity (GEIA) of the International
Global Atmospheric Chemistry (IGAC) Project. This GEIA project
developed a global emissions inventory for major, reactive chlorine
species in the troposphere. Principal objectives were: 1) To develop
and verify individual global emissions inventories on a 1 degree x 1
degree grid scale for particulate Cl-, HCl, other inorganic Cl gases,
CH3Cl, CH3CCl3, CCl2=CCl2, CHCl=CCl2, CH2Cl2, CHCl3, and HCFCs; 2) To
develop and verify a composite, multi-species inventory on a 1 degree
x 1 degree grid scale by integrating the individual inventories; and
3) To critically assess overall uncertainties for each inventory.

"This research effort was conducted under the auspices of the
International Global Atmospheric Chemistry (IGAC) Program's Global
Emissions Inventory Activity (GEIA); the work involved investigators
from several institutions and countries each with expertise in
specific fields. Results yielded the first integrated estimates for
gridded emissions fluxes of reactive chlorine on a global scale. The
inventory allows quantitative differentiation of the relative
magnitudes and associated environmental significance of major natural
and anthropogenic sources. As part of the analysis, we critically
assessed the reliability of the estimates and thereby constrained
overall uncertainties in the emission fluxes of reactive chlorinated
compounds. Results provide important and previously unavailable
information with which to make informed decisions regarding proposed
regulatory strategies." [from the RCEI home page]

For more information and access to the RCEI data, see:
"http://www.geiacenter.org"

Acknowledgement: The work for RCEI is funded in part by the World
Chlorine Council. The contract was administered by the US Chlorine
Chemistry Council of the Chemical Manufacturer's Association and by
Euro Chlor for the European Chemical Industry (CEFIC).