We propose to characterize the primary mercury emission pathways and the speciation of the emitted mercury from the source or sources selected for study. The measurements will be performed by the PI's and their colleagues in a collaborative endeavor with the Minnesota Pollution Control Agency (MPCA) during two separate field campaigns in the Great Lakes Airshed. The measurements will be scheduled for both warm and cool periods because of the strong influence of temperature on fugitive mercury emissions. The data collected will be subject to stringent quality assurance procedures such as those we have developed for three previous EPA projects. The data will be used with regional production and industrial land-use information to estimate overall emissions from these source types. The speciation measurements can be combined with a mercury deposition model to estimate local dry deposition fluxes. These data will be compared to regional emission inventories to assess the potential importance of this source category. (mercury); (Hg); (methylmercury); (chemicals of concern); (chemical of concern); (air deposition);
- Wisconsin USDA Natural Resources Conservation Service (NRCS), headquartered in Madison, will work directly with agricultural producers providing technical assistance through Farm Bill Programs for Habitat and Wildlife Protection; Reducing Ag Nonpoint Sour
- Changes in Mercury Methylation in a Boreal Wetland Previously Enriched in Sulfate: Synergistic Effects of Atmospheric Deposition and Water-level Fluctuations
- Wisconsin USDA Natural Resources Conservation Service (NRCS), headquartered in Madison, will work directly with agricultural producers providing technical assistance through Farm Bill Programs for Habitat and Wildlife Protection; Reducing Ag Nonpoint Sour
- Particulate organic carbon (POC) formation and phosphorus/iron supply ratios along pH and trophic gradients in lakes
- Pennsylvania USDA Natural Resources Conservation Service (NRCS), headquartered in Harrisburg, will work directly with agricultural producers providing technical assistance through Farm Bill Programs for Habitat and Wildlife Protection; Reducing Ag Nonpoin
- Pennsylvania USDA Natural Resources Conservation Service (NRCS), headquartered in Harrisburg, will work directly with agricultural producers providing technical assistance through Farm Bill Programs for Habitat and Wildlife Protection; Reducing Ag Nonpoin
- Pennsylvania USDA Natural Resources Conservation Service (NRCS), headquartered in Harrisburg, will work directly with agricultural producers providing technical assistance through Farm Bill Programs for Habitat and Wildlife Protection; Reducing Ag Nonpoin
- Biologically Available Iron and Ultraviolet Radiation Control of Noxious Cyanobacteria in Freshwaters
- Synthetic Musk Fragrances in the Great Lakes
- Ohio USDA Natural Resources Conservation Service (NRCS), head quartered in Coumbus, will work directly with agricultural producers providing technical assistance through Farm Bill Programs for Habitat and Wildlife Protection; Reducing Ag Nonpoint Source L
General
Monitoring
Annex
General
- Scope of Study
Scope of StudyField InvestigationLaboratory Investigation
- Scale of Phenomena
Scale of PhenomenaBiochemicalPhysical/Chemical
- Impact of Pollutants
Impact of PollutantsToxic MetalsToxic Organics
- Processes
- Land Use and Habitat
- Resource Management
- Socio-Economic
- State / Province
State ProvinceIllinoisIndianaMichiganMinnesotaNew YorkOhioPennsylvaniaWisconsin
- Lake Basin / Connecting Channels
Lake Basin Connecting ChannelsLake ErieLake HuronLake MichiganLake OntarioLake Superior
Monitoring
- Purpose of Project
- Frequency
- Number of Sampling Entities
- Data Availability
- Region Being Monitored
- Resource Being Monitored
Resource Being MonitoredHuman Health
- Program Drivers
Program DriversIntegrated Atmospheric Deposition NetworkLakewide Management Plans (LaMP)
- Beneficial Use Impairment Assessments
Beneficial Use Impairment AssessmentsBird or Animal Deformities or Reproduction ProblemsFish Tumours or Other DeformitiesRestrictions of Fish and Wildlife ConsumptionRestrictions on Drinking Water Consumption or Taste and Odour ProblemsTainting of Fish and Wildlife Populations
Aquatic Nuisance Species
Annex
- Annex Numbers
Annex NumbersAirborne Toxic SubstancesResearch & DevelopmentSpecific Objectives for toxic substances and effluents
- Annex 17
Annex 17Physical and transformational processes affecting delivery of pollutants