2004 LCRC Atmospheric Research Priority Recommendations

 

Following the 2004 Priorities meeting, LCRC determined that

Missisquoi Bay would be a high priority for research for the next several years - see PRIME

 

 

Continued Priorities from 1999

(1)   Establish a long-term monitoring site on the shore of Lake Champlain to directly measure atmospheric deposition into the Lake.

STATUS:  Not yet established

RECOMMENDATION:  Continued Priority (assumed)

 

(2)   Conduct modeling which can determine source-receptor relationships for the Lake Champlain Basin

STATUS:  Ongoing (via NOAA and LCRC funding and support in both VT and NY)

RECOMMENDATION:  Continued Priority

 

(3)   Continue air monitoring through AIRMON at Underhill, VT for wet and dry deposition

STATUS:  Ongoing (via NOAA/UVM/VMC funding and support)

RECOMMENDATION: Continued Priority

 

(4)   Continue the weather station at Colchester Reef that provides meteorological data for atmospheric and hydrodynamic modeling

STATUS:  Ongoing (via NOAA/LCRC/UVM/VMC funding and support)

RECOMMENDATION:  Continued Priority

 

(5)   Continue Hg program at Underhill, VT and tributaries

STATUS:  Ongoing and expanded (via NOAA/LCRC/EPA/UVM/VMC funding and support)

RECOMMENDATION:  Continued Priority

 

(6)   Continue NADP and UV-B monitoring programs at Underhill, VT

STATUS:  Ongoing and expanded (via USGS/USDA/UVM/VMC funding and support)

            RECOMMENDATION:  Continued Priority

 

Priorities From 2003 Lake Champlain Basin Atmospheric Deposition Meeting

Based on report to the NOAA-Air Resources Laboratory:  “Atmospheric Deposition in the Lake Champlain Basin:  Research Plan and Workshop Proceedings.”  URL:   http://www.uvm.edu/envnr/lc_atm_plan.pdf.  Focus for research on three atmospheric deposition subtopics (see Table I for details of individual research plans for each):  

                                                                           *Mercury deposition

                   *Major ion deposition

                   *Air toxics deposition

 

(1)   Develop a framework for coordination of activities among participants in atmospheric research and monitoring, with links to the user community in the basin and region

STATUS:       *Mercury efforts supported by NOAA/EPA/LCRC/UVM/VMC at Underhill, VT.

                          Need to continue coordination with Lake Champlain- and tributary-based work

                             *Major ion coordination needs resources

                       *Air toxics coordination needs resources

 

 

(2)   Continue current long-term atmospheric and meteorological monitoring activities               STATUS:        Continued Priority (see #3-#6 from 1999)                                                                                

(3)   Upgrade and amend existing monitoring activities to improve spatial, temporal and species characterizations to support fate and transport model development and application                                                   STATUS:       *Mercury efforts supported by NOAA/EPA/LCRC/UVM/VMC at Underhill, VT. 

  Need to continue coordination with Lake Champlain- and tributary-based work.

                             *Major ion efforts need resources

                                   *Air toxics efforts need resources

(4)   Couple monitoring and modeling activities to project annual deposition rates of measured pollutants for the watershed as a whole                                                             

STATUS:       *Mercury efforts supported by NOAA/EPA/LCRC/UVM/VMC at Underhill, VT. 

                          Need to continue coordination with Lake Champlain- and tributary-based work.

                             *Major ion efforts need resources

                             *Air toxics efforts need resources

(5)   Model fate and transport of measured pollutants and linkage of products to comprehensive basin wide research programs                                                                                                                     

STATUS:       *Mercury efforts supported by NOAA/EPA/LCRC/UVM/VMC at Underhill, VT.

  Need to continue coordination with Lake Champlain- and tributary-based work.

                             *Major ion efforts need resources

                             *Air toxics efforts need resources

(6)   Develop outreach efforts to improve understanding by decision makers, the scientific community and the public of the value of atmospheric deposition research and monitoring activities, and their contribution to the protection of human and environmental health in the basin.                                            

STATUS:       *Mercury efforts supported by NOAA/EPA/LCRC/UVM/VMC at Underhill, VT. 

  Need to coordinate with Lake Champlain- and tributary-based mercury work.

                             *Major ion efforts need resources

                             *Air toxics efforts need resources                

 


TABLE I:  SPECIFIC 2003 WORKSHOP RESEARCH RECOMMENDATIONS AND 2004 STATUS FOR THREE MAJOR ATMOSPHERIC DEPOSITION SUBTOPICS

(PMRC = Underhill, VT site)

MERCURY

MAJOR IONS

AIR TOXICS

Complete analysis of all stored samples from the PMRC site and publish the data as soon as possible.           

Maintain the long-term, event-based record of mercury concentration in precipitation and routine measurement of total gas-phase mercury (TGM) in air at the PMRC site near Underhill, VT.

Continue current source-receptor and basin-wide mercury mass balance modeling efforts to further understanding of potential source areas and to develop an initial characterization of mercury movement from the watershed into Lake Champlain.

Characterize the temporal and spatial deposition of mercury in its various forms within the basin.

Estimate net speciated atmospheric mercury deposition for the entire basin using the PMRC observations linked to appropriate fate and transport models.

SEPTEMBER 2004 STATUS:  All Underhill (PMRC)-based long-term mercury monitoring and research efforts completed, ongoing and/or expanded via funding and support from NOAA, EPA, LCRC, UVM, and VMC.  Lake-based and basin-wide studies also supported by NOAA and others.  Need further coordination of both.

Maintain existing precipitation chemistry sampling programs at the PMRC.

Establish a routine dry-deposition measurements program in coordination with the EPA CASTNET program.

Continue current source-receptor modeling efforts.

Examine improved species characterizations for both wet and dry deposition programs.

Improve spatial and temporal characterizations of both wet and dry deposition. Present measurement programs at PMRC are insufficient to resolve many temporal and spatial resolution questions in the basin.

Characterization of temporal variability at the PMRC site

Development of a regional data set with observations from PMRC and nearby sites in Québec, New York and Ontario.

Characterization of spatial variability in deposition within and between selected landscapes across the basin.

Consideration of development of a trace metal concentration measurement activity

Develop a plan to add the PMRC monitoring site to the existing EPA IMPROVE program.

Integrate atmospheric, hydrological and aquatic models to address deposition, fate and transport of major ions across the entire basin.

Consider extending the analysis suite to include trace metals and VOC’s to support a full range of air quality and ecosystem loading programs.

SEPTEMBER 2004 STATUS:  Maintenance of current monitoring and modeling efforts continuing.  New work needs resources

Identify responsible agencies to examine existing persistent and bio-accumulative toxics (PBT) chemical measurement strategies and adapt appropriate measures for regional use.  The strategies adopted must be consistent within the existing Great Lakes toxics program.

Develop a plan to add a Lake Champlain Basin site to the existing Great Lakes IADN (Integrated Atmospheric Deposition Network).

SEPTEMBER 2004 STATUS:  New work needs resources