Forest Ecosystem Monitoring Cooperative

Atmospheric Mercury Deposition Monitoring: Vapor-Phase (Gaseous Elemental) Concentration of Mercury at Underhill VT, 1992-1997

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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

    Year-round monitoring of atmospheric mercury deposition in wet deposition, aerosol (particulate-bound) and vapor (gaseous elemental) phases. The study is part of an integrated program of research and monitoring on atmospheric deposition in the Lake Champlain Basin coordinated over time with NOAA, University of Michigan Air Quality Lab, the Lake Champlain Research Consortium, the Mercury Deposition Network and the Atmospheric Mercury Network.

People

  • Tim Scherbatskoy: Content Provider

  • Carl Waite: Content Provider

  • Joanne Cummings: Content Provider

  • Eric Miller: Principal Investigator

  • Melody Burkins: Principal Investigator

  • Gerry Livingston: Content Provider

  • Miriam Pendleton: Content Provider

  • Gerald Keeler: Principal Investigator

Keywords

  • air pollution, atmospheric deposition, concentration, mercury,

Organizations

  • University of Michigan Atmospheric Science Air Quality Laboratory: lead
  • Vermont Monitoring Cooperative : partner

Geographic Coverage

  • Coordinates

Data Table

  • Title: Vapor-Phase (Gaseous Elemental) Concentration of Mercury at Underhill VT, 1992-1997
  • Start Date: 1992-12-16
  • End Date: 1997-12-29
  • Description: Measure the concentration of atmospheric mercury in its vapor phase (aka gaseous elemental mercury)

  • Purpose: Year-round monitoring of atmospheric mercury deposition in aerosol and vapor phases.

  • Condensed Title: Z0039_HgPMRC92_97

  • Object Name: VMC.39.39

  • Data Type: mySQL
  • Citation: Tim Scherbatskoy. 1997. Vapor-Phase (Gaseous Elemental) Concentration of Mercury at Underhill VT, 1992-1997. VMC. Dataset. https://www.uvm.edu/femc/data/archive/project/atmospheric-mercury-deposition-monitoring/dataset/vapor-phase-gaseous-elemental-concentration-mercury

  • Online Distribution: https://vmc.w3.uvm.edu/vmcdevel/data/archive/project/atmospheric-mercury-deposition-monitoring/dataset/vapor-phase-gaseous-elemental-concentration-mercury

Attribute List

    Attribute Name: Batch
    • Label: Batch ID
    • Description: Batch group ID
    • Storage Type: text
    • Measurment Type: nominal
    Attribute Name: DateOn
    • Label: Date Trap Put On
    • Description: Date that the gold trap was put out for sampling
    • Storage Type: datetime
    • Measurment Type: datetime
    • String Format: YYYY-MM-DD
    Attribute Name: TimeOn
    • Label: Time Trap Put On
    • Description: Time the gold trap was put out to sample
    • Storage Type: datetime
    • Measurment Type: datetime
    • String Format: hh:mm
    Attribute Name: site
    • Label: Site Code
    • Description: Site code
    • Storage Type: text
    • Measurment Type: nominal
    Attribute Name: samplenumber
    • Label: Sample Number
    • Description: Sample Number
    • Storage Type: int
    • Measurment Type: ordinal
    Attribute Name: samplevolume
    • Label: Sample Volume
    • Description: Volume of the sample collected
    • Storage Type: decimal
    • Measurment Type: ratio
    Attribute Name: STPcorrected_sampVol
    • Label: Corrected Sample Volume
    • Description: Volume of the sample corrected to standard temperature and pressure (1013.25mb at 25C)
    • Storage Type: decimal
    • Measurment Type: ratio
    Attribute Name: VolumeUnits
    • Label: Volume Units
    • Description: Units used for reporting volume
    • Storage Type: text
    • Measurment Type: nominal
    Attribute Name: Duration_min
    • Label: Sample Duration
    • Description: Duration of sampling
    • Storage Type: int
    • Measurment Type: ratio
    • Standard Unit: minute
    • Precision: 1
    • Unit: minute
    • Number Type: integer
    Attribute Name: Blank
    • Label: Blank Mercury Concentration
    • Description: Mercury found on the field blank
    • Storage Type: decimal
    • Measurment Type: ratio
    Attribute Name: STP_corrected_Result
    • Label: Mercury Concentration (Corrected)
    • Description: Concentration of mercury, corrected to standard temperature and pressure (1013.25mb at 25C)
    • Storage Type: decimal
    • Measurment Type: ratio
    Attribute Name: Unit
    • Label: Units
    • Description: Units used to report concentrations
    • Storage Type: text
    • Measurment Type: nominal
    Attribute Name: NonSTPcorrectedResult
    • Label: Mercury Concentration (Corrected)
    • Description: Concentration of mercury, not corrected
    • Storage Type: decimal
    • Measurment Type: ratio

Methods

  • Current Methods
    • Unnamed Method
      • Started: 1992-12-15
      • Method Description: Year-round daily wet-only precipitation sampling, every sixth day aerosol and vapor phase sampling (24 hour sample). Measurements include: total Hg in precipitation, vapor and particulate phases, 24 other trace elements.

    • Unnamed Method
      • Method Description: Vapor phase sampling ended in September 2001.


  • Past Methods (no longer in use)
    • Unnamed Method
      • Started: 1995-01-01
        Ended: 2001-12-31
      • Method Description: 24-hour sample of air collected every 6th day to measure vapor phase levels of mercury

    • Unnamed Method
      • Started: 1992-12-15
        Ended: 1994-10-05
      • Method Description: 24-hour sample of air collected every Wednesday and every 6th day to measure vapor phase levels of mercury
      • Instrumentation: Gold-coated sand vapor traps

    • Unnamed Method
      • Started: 1992-12-15
        Ended: 1995-02-04
      • Method Description: Samples shipped to University of Michigan Air Quality Lab for analysis by cold vapor atomic fluorescence spectrometry

Sampling Equipment

  • Trap
    • Started: 1992-12-16
      Ended: 2006-08-27
    • Sampling Description: Gold plated glass bead trap

Site Characteristics

  • Site Description: West slope of Mount Mansfield at the Proctor Maple Research Center.