Forest Ecosystem Monitoring Cooperative

Mercury Flux at PMRC: Gaseous Elemental Reactive Mercury Flux

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Metadata Provider

  • Forest Ecosystem Monitoring Cooperative

    • Address:
      705 Spear Street
      South Burlington, Vermont 05403
      United States of America

      Phone: (802) 391-4135
      Email: femc@uvm.edu
      Website: www.uvm.edu/femc

Abstract

    The primary objectives of this project were to conduct measurements of surface-atmosphere exchanges of gaseous elemental mercury (GEM) over a New England forest and evaluate possible pathways for assimilation of atmospheric mercury into the biota of terrestrial ecosystems of the region. This was done in the context of an ongoing project focusing on year-round monitoring of mercury wet-deposition in the Lake Champlain Basin and establishing measurements of speciated (GEM, RGM, HGP) ambient atmospheric mercury.

People

  • Carl Waite: Content Provider

  • Eric Miller: Principal Investigator

  • Melody Burkins: Content Provider

  • Miriam Pendleton: Content Provider

Geographic Coverage

  • Coordinates

    Data Table

    • Title: Gaseous Elemental Reactive Mercury Flux
    • Start Date: 2012-04-04
    • End Date: 2013-01-09
    • Description: Gaseous Elemental Reactive Mercury Flux data from April 2012-January 2013

    • Purpose:

    • Condensed Title: Z0167_GaseousElementalReactiveMercuryFlux

    • Object Name: VMC.167.2162

    • Data Type: mySQL
    • Citation: Eric Miller (2013) Gaseous Elemental Reactive Mercury Flux. FEMC. Available online at: https://www.uvm.edu/femc/data/archive/project/mercury-flux-pmrc/dataset/gaseous-elemental-reactive-mercury-flux

    • Online Distribution: https://vmc.w3.uvm.edu/vmcdevel/data/archive/project/mercury-flux-pmrc/dataset/gaseous-elemental-reactive-mercury-flux

    Attribute List

      Attribute Name: baseln
      • Label: baseln
      • Description: baseln
      • Storage Type: decimal
      • Measurment Type: ratio
      Attribute Name: blnstd
      • Label: blnstd
      • Description: blnstd
      • Storage Type: decimal
      • Measurment Type: ratio
      Attribute Name: Cartridge
      • Label: Cartridge
      • Description: Cartridge
      • Storage Type: text
      • Measurment Type: nominal
      Attribute Name: Date
      • Label: Date
      • Description: Date
      • Storage Type: date
      • Measurment Type: datetime
      • String Format: YYYY-MM-DD
      Attribute Name: event
      • Label: event
      • Description: event
      • Storage Type: int
      • Measurment Type: nominal
      Attribute Name: HgConc
      • Label: HgConc
      • Description: Mercury concentration
      • Storage Type: decimal
      • Measurment Type: ratio
      • Unit: ng/m3 (Nanogram per cubic meter of air)
      Attribute Name: PeakArea
      • Label: PeakArea
      • Description: PeakArea
      • Storage Type: int
      • Measurment Type: ratio
      Attribute Name: PeakMax
      • Label: PeakMax
      • Description: PeakMax
      • Storage Type: decimal
      • Measurment Type: ratio
      Attribute Name: SmpDuration
      • Label: SmpDuration
      • Description: SmpDuration
      • Storage Type: int
      • Measurment Type: interval
      Attribute Name: SmpVolume
      • Label: SmpVolume
      • Description: SmpVolume
      • Storage Type: decimal
      • Measurment Type: ratio
      Attribute Name: Status
      • Label: Status
      • Description: Status
      • Storage Type: text
      • Measurment Type: nominal
      Attribute Name: Time
      • Label: Time
      • Description: Time
      • Storage Type: time
      • Measurment Type: datetime
      • String Format: hh:mm:ss
      Attribute Name: TIMESTAMP
      • Label: TIMESTAMP
      • Description: TIMESTAMP
      • Storage Type: datetime
      • Measurment Type: datetime
      • String Format: YYYY-MM-DD hh:mm:ss
      Attribute Name: Type
      • Label: Type
      • Description: Type
      • Storage Type: text
      • Measurment Type: nominal

    Methods

    • Current Methods
      • Micrometeorological measurements of atmospher
        • Method Description: Direct, micrometeorological measurements of atmosphere-canopy exchanges of GEM were made using the modified Bowen-ratio method. This method involves measuring the concentration gradient of either temperature or water vapor and the turbulent flux of sensible or latent heat over the same height interval

      • Sample composition
        • Method Description: To reflect a range of trophic levels, we sampled leaf litter, foliage, folivorous and carnivorous arthropods, a terrestrial salamander, an insectivorous passerine bird, and two carnivorous raptors. Salamanders and birds were sampled across a study area of c. 25 ha between 1075-1180 m elevation, while we collected leaf litter, foliage and arthropod samples at two sites 50 m apart at 1100 m elevation.

      • Quality control
        • Method Description: Care was taken to ensure that samples were not contaminated, especially those that required manual handling (e.g., litter and foliage). We generally used latex gloves during sampling, and we cleaned sampling utensils with distilled water and/or 5% nitric acid. All samples were frozen within 2 hours of collection


    Sampling Equipment

    • No sampling equipment recorded for this dataset

    Site Characteristics

    • No site characteristics recorded for this dataset