Global Modeling of POPs Source-to-Receptor Air Transport ......1-Jan-08 8-Jan-08 15-Jan-08 22-Jan-08 29-Jan-08 5-Feb-08 12-Feb-08 19-Feb-08 26-Feb-08 4-Mar-08 11-Mar-08 18-Mar-08 25-Mar-08

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surface level (50 m) air concentrations at the North Pole arising

from 1 gram/hour hypothetical emissions starting Jan 1, 2008

source=CAN, GEM, pcdf

source=CHI, GEM, pcdf

source=MEX, GEM, pcdf

source=GBR, GEM, pcdf

source=CAR, GEM, pcdf

source=AFR, GEM, pcdf

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upper level (5000 m) air concentrations at the North Pole arising








Global Modeling of POPs Source-to-Receptor

Air Transport to the Arctic with Climate Change:

HYSPLIT-SV Lagrangian-Global Eulerian Model as a

Research and Policy Tool

The Arctic as a Messenger for Global Processes, AMAP, Copenhagen, May 2011

Paul Bartlett (1), Mark Cohen (2), Beatriz Cárdenas (3), Abraham Ortinez (3), Roberto Basaldud (3) (1) Saint Peter's College & City University of New York, U.S. [email protected] (2) Air Resources Laboratory, NOAA, U.S.

(3) Instituto Nacional de Ecología, SEMARNAT, Mexico

Abstract: NOAA's Hybrid Single Particle Lagrangian Integrated Trajectory Semi-Volatile model (HYSPLIT-SV) has been developed with a new Eulerian module to incorporate the advantages of Eulerian and Lagrangianmethodolgies in one model. We present here some of the first test simulations of the HYSPLIT-SV GEM (Global Eulerian Model): a set of experimental source-to-receptor simulations from representative source points in NorthAmerica, and other continents, to the Arctic. We evaluate the global and Arctic capabilities of HYSPLIT-SV's new Eulerian module in relation to its established Lagrangian capabilities with a set of semi-volatile organic air toxics.

HYSPLIT-SV is a dynamic atmospheric dispersion model with atmospheric chemistry and environmental fate processes including vapor-particle partitioning, degradation (e.g. via hydroxyl radical, ozone, photolysis) anddeposition (wet and dry; gas and particle). Source-to-receptor simulations produce estimates of the efficiency of transport to a receptor as air concentrations and deposition (Air Transfer Coefficients [ATC]) which integrates theeffects of meteorology and environmental fate processes. ATCs enable the development of estimates of source-to-receptor transport under conditions of changing and uncertain emission scenarios. ATCs also enable thedevelopment of Air Transfer Coefficient maps for individual receptors, for selected time periods, to enable interpretation of variations of monitored air concentration and deposition by analysis of the shifts in relative efficiencyof transport between source emission regions.

This new version of HYSPLIT-SV is being evaluated and ground-truthed with ongoing HYSPLIT-SV research with dioxin emissions and air monitoring data in Mexico. For climate change insights, we plan to compare time periodscovering Arctic Oscillations and other time periods that the Arctic stations can potentially use to distinguish changes in climate from changes in emissions, that they are difficult to with monitoring results alone. This work is afirst stage in developing HYSPLIT-SV into a tool to better interpret Arctic air monitoring time series data and to develop HYSPLIT-SV as a tool to optimize economic source emission reduction strategies for global environmentalbenefits.

These graphs shows air concentrations of 2,3,4,7,8-PeCDF arising from 1 gram/hr

hypothetical sources of 2,3,4,7,8-PeCDF at six different locations, using the Global

Eulerian Model (GEM) version of HYSPLIT-SV. This is for the period from Jan-Jun 2008.

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source=CAN, GEM, tcdd

This graph shows the surface level air concentrations of 2,3,4,7,8-PeCDF and 2,3,7,8-

TCDD arising from 1 gram/hr hypothetical source of the respective congeners at a

location in Canada for the period Jan-Jun 2008

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atmospheric deposition at the North Pole for continuous 3-hr periods

arising from 1 gram/hour hypothetical emissions starting Jan 1, 2008







2,3,4,7,8 PCDF weekly snapshot air concentration (g/m3) arising from

a 1 g/hour source Canada, using HYSPLIT-SV in Global Eulerian Mode

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6 month (Jan-Jun 2008) cumulative deposition of 2,3,4,7,8 PCDF (g/m2) arising

from a 1 g/hour source in Canada, using HYSPLIT-SV in Global Eulerian mode

MEXICAN DIOXIN AND FURAN AIR MONITORING NETWORK The North American Task Force on Dioxins and Furans, and Hexachlorobenzene was established in 2000, by the Sound Management of

Chemicals (SMOC) Working Group of the North American Commission for Environmental Cooperation (NACEC). Since 2000, there have been

significant accomplishments and on-going activities of the Task Force toward its mandate. One of them refers to the establishment of a North

American Dioxin and Furans Ambient Monitoring Network. The Mexican air monitoring program currently includes 9 sampling sites. Regional

assessment and analysis of Dioxins and furans ambient air data is an ongoing priority for Mexico as a member of the Stockholm Convention

for which this data set will be considered as the baseline for its National Implementation. The latest version of HYSPLIT-SV is presently being

implemented in Mexico to better understand source to receptor relationships and routes of exposure.

Global Modeling of POPs Source-to-Receptor Air Transport ......1-Jan-08 8-Jan-08 15-Jan-08 22-Jan-08 29-Jan-08 5-Feb-08 12-Feb-08 19-Feb-08 26-Feb-08 4-Mar-08 11-Mar-08 18-Mar-08 25-Mar-08

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