Forest Ecosystem Monitoring Cooperative

A Three Way Comparison of Atmospheric Mercury Sample Collectors: Three Way Combined Collector Comparison_VT WI WA

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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

    A 1-year study (August 2005 – July 2006) of the event-based relative collection performance of the MDN modified Aerochem (ACM) sampler, the University of Michigan modified MICB sampler, and the NCON Systems mercury deposition sampler. The samplers were deployed at the Underhill, VT Air Quality Research Facility (VT99).

People

  • Jamie Shanley: Content Provider

  • Sean Lawson: Principal Investigator

  • Eric Miller: Principal Investigator

  • Melody Burkins: Principal Investigator

  • Miriam Pendleton: Content Provider

  • Eric Hall: Content Provider

  • Gerald Keeler: Principal Investigator

Keywords

  • collector comparison, mercury, wet deposition,

Organizations

  • University of Vermont Rubenstein School of Environment and Natural Resources: partner
  • Vermont Monitoring Cooperative : partner
  • United States Geological Survey (USGS) : partner
  • University of Michigan Atmospheric Science Air Quality Laboratory: partner
  • Ecosystems Research Group, Ltd. : partner
  • United States Environmental Protection Agency (EPA) : partner
  • National Atmospheric Deposition Program : partner

Geographic Coverage

  • Coordinates

    Data Table

    • Title: Three Way Combined Collector Comparison_VT WI WA
    • Start Date: 2005-04-12
    • End Date: 2007-09-18
    • Description: A three state, three collector, three lab mercury wet deposition sampling and analysis comparison. A 1-year study (August 2005–July 2006) of the event-based relative collection performance of the MDN modified Aerochem (ACM) sampler, the University of Michigan modified MICB sampler, and the NCON Systems mercury deposition sampler. The samplers were deployed at the Underhill, VT Air Quality Research Facility (VT99), and at locations in WA and WI, too. This dataset includes comparative rain gage data and comparitive sample analysis data.

    • Purpose: 1) Assess the relative performance of 3 collector types in a rural location. 2) Identify the most suitable collector for long-term monitoring of mercury in precipitation in the Lake Champlain Basin. 3) Identify reasons for differences in collector performance that could lead to improved collector designs and 4) Develop transfer functions for normalizing data obtained from the different collector types and laboratories.

    • Condensed Title: Z1106_2327_2J2P4Y

    • Object Name: VMC.1106.2327

    • Data Type: mySQL
    • Citation: Eric Miller. 2009. Three Way Combined Collector Comparison_VT WI WA. FEMC. Dataset. https://www.uvm.edu/femc/data/archive/project/3Way-Hg-Collector-Comparison/dataset/combined-collector-comparison_vt-wi-wa

    • Online Distribution: https://www.uvm.edu/femc/data/archive/project/3Way-Hg-Collector-Comparison/dataset/combined-collector-comparison_vt-wi-wa

    Attribute List

      Attribute Name: Belfort_#2
      • Label: Belfort #2
      • Description: Precipitation measured by second Belfort raingage
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.01
      • Unit: millimeters
      • Number Type: rational
        • Bounds:
        • Minimum: 0
        • Maximum: 3000
      Attribute Name: Belfort_precip
      • Label: Belfort precipitation
      • Description: Precipitation measured by Belfort rain gage
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.01
      • Unit: millimeters
      • Number Type: rational
        • Bounds:
        • Minimum: 0
        • Maximum: 3000
      Attribute Name: Bel_to_NWS_ratio
      • Label: Belfort to NWS ratio
      • Description: Belfort rain gage precipitation amount to National Weather Service raingage precipitation amount ratio
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.000000001
      • Number Type: rational
        • Bounds:
        • Minimum: 0
        • Maximum: 1
      Attribute Name: Bottle_Catch_versus_Belfort_RSD_ACM/GAGE
      • Label: Bottle Catch versus Belfort RSD ACM/GAGE
      • Description: Bottle catch versus Belfort raingage relative standard deviation ACM/gage
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.000001
      • Number Type: rational
      Attribute Name: Bottle_Catch_v_Belfort_RSD_ACM2/GAGE
      • Label: Bottle Catch v Belfort RSD ACM2/GAGE
      • Description: Bottle catch versus Belfort raingage standard deviation ACM2/Gage
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.000001
      • Number Type: rational
      Attribute Name: Bottle_Catch_v_Belfort_RSD_NCON/GAGE
      • Label: Bottle Catch v Belfort RSD NCON/GAGE
      • Description: Bottle catch versus Belfort raingage relative standard deviation NCon collector/NWS raingage
      • Storage Type: decimal
      • Measurment Type: ratio
      • Number Type: rational
      Attribute Name: BULK/GAGE
      • Label: BULK/GAGE
      • Description: bulk collector compared to NWS raingage
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Number Type: rational
      Attribute Name: Bulk_Bottle_Capture_Efficiency_BC/NWS
      • Label: Bulk Bottle Capture Efficiency BC/NWS
      • Description: Bulk bottle precipitation capture efficiency (bulk collector compared to NWS raingage amount)
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.0001
      • Number Type: rational
      Attribute Name: Bulk_Bottle_Collection
      • Label: Bulk Bottle Capture
      • Description: Bulk precipitation collector sample bottle capture
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.1
      • Unit: milliliter
      • Number Type: integer
        • Bounds:
        • Minimum: 0
        • Maximum: 3000
      Attribute Name: Bulk_Calc_Ppt
      • Label: Bulk Calculated Precipitation
      • Description: Bulk collector sample volume derived precipitation amount
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Unit: millimeter
      • Number Type: rational
        • Bounds:
        • Minimum: 0
        • Maximum: 3000
      Attribute Name: Bulk_Hg_Conc
      • Label: Bulk Mercury Concentration
      • Description: Mercury concentration of sample collected by bulk precipitation sampler
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.1
      • Unit: nanogram per liter
      • Number Type: rational
        • Bounds:
        • Minimum: 0
        • Maximum: 3000
      Attribute Name: Bulk_Hg_dep
      • Label: Bulk Hg deposition
      • Description: mercury deposition derived from bulk precipitation collector sample
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.001
      • Unit: nanogram per meter squared
      • Number Type: rational
        • Bounds:
        • Minimum: 0
        • Maximum: 10000
      Attribute Name: Comments
      • Label: Comments
      • Description: Comments on sample collection issues
      • Storage Type: text
      • Measurment Type: nominal
      Attribute Name: Comments_2
      • Label: Comments 2
      • Description: Comments on sample collection from WA
      • Storage Type: text
      • Measurment Type: nominal
      Attribute Name: DATE
      • Label: DATE
      • Description: The date on which a precipitation sample was collected
      • Storage Type: date
      • Measurment Type: datetime
      • String Format: YYYYMMDD
      Attribute Name: Hg_Conc_RSD_ACM/NCON
      • Label: Mercury Concentration RSD ACM/NCON
      • Description: Mercury concentration relative standard deviation ACM compared to Ncon
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Number Type: rational
      Attribute Name: Hg_Conc_RSD_ACM3/ACM
      • Label: Mercury Concentration RSD ACM3/ACM
      • Description: Mercury concentration relative standard deviation ACM3 compared to ACM
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Number Type: rational
      Attribute Name: Hg_Conc_RSD_ACM2/ACM
      • Label: Mercury Concentration RSD ACM2/ACM
      • Description: Mercury concentration relative standard deviation ACM2 compared toACM
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Number Type: rational
      Attribute Name: Hg_Conc_RSD_Bulk/ACM
      • Label: Mercury Concentration RSD Bulk/ACM
      • Description: Mercury concentration relative standard deviation Bulk compared to ACM
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Number Type: rational
      Attribute Name: Hg_Conc_RSD_MIC/ACM
      • Label: Mercury Concentration RSD MIC/ACM
      • Description: Mercury concentration relative standard deviation MIC-B compared to ACM
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Number Type: rational
      Attribute Name: Hg_Conc_RSD_NCON/ACM
      • Label: Mercury Concentration RSD NCON/ACM
      • Description: Mercury concentration relative standard deviation Ncon compared to ACM
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Number Type: rational
      Attribute Name: MDN/ACM2_Bottle_Capture
      • Label: MDN/ACM2 Bottle Capture
      • Description: Mercury deposition network ACM2 precipitation collector sample bottle capture
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.1
      • Unit: milliliter
      • Number Type: rational
        • Bounds:
        • Minimum: 0
        • Maximum: 3000
      Attribute Name: MDN/ACM2_Calc_Ppt
      • Label: MDN/ACM2 Calculated Precipitation
      • Description: Mercury deposition network ACM2 sample volume derived precipitation amount
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Unit: millimeters
      • Number Type: rational
        • Bounds:
        • Minimum: 0
        • Maximum: 3000
      Attribute Name: MDN/ACM2_Collector_Capture_Efficiency_BC/NWS
      • Label: MDN/ACM2 Collector Capture Efficiency BC/NWS
      • Description: Mercury deposition network ACM2 collector capture efficiency relative to bulk collector/NWS raingage
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Number Type: rational
      Attribute Name: MDN/ACM2_Hg_Conc
      • Label: MDN/ACM2 Mercury Concentration
      • Description: Mercury concentration of samples collected by the Mercury Deposition Network ACM2 sampler
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.1
      • Unit: nanograms per liter
      • Number Type: rational
      Attribute Name: MDN/ACM2_Hg_dep
      • Label: MDN/ACM2 Mercury Deposition
      • Description: Mercury deposition calculated from Mercury Deposition Network ACM2 samples
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.0001
      • Unit: nanograms per meter squared
      • Number Type: rational
      Attribute Name: MDN/ACM3_Bottle_Capture
      • Label: MDN/ACM3 Bottle Capture
      • Description: Mercury deposition network ACM3 precipitation collector sample bottle capture
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.1
      • Unit: milliliters
      • Number Type: rational
        • Bounds:
        • Minimum: 0
        • Maximum: 3000
      Attribute Name: MDN/ACM3_Collector_Capture_Efficiency_BC/NWS
      • Label: MDN/ACM3 Collector Capture Efficiency BC/NWS
      • Description: Mercury deposition network ACM3 precipitation capture efficiency capture efficiency relative to bulk collector/NWS raingage
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Number Type: rational
      Attribute Name: MDN/ACM3_Hg_Conc
      • Label: MDN/ACM3 Mercury Concentration
      • Description: Mercury concentration of samples collected by the Mercury Deposition Network ACM3 sampler
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.1
      • Unit: nanograms per liter
      • Number Type: rational
      Attribute Name: MDN/ACM3_Hg_dep
      • Label: MDN/ACM3 Mercury Deposition
      • Description: Mercury deposition Mercury deposition calculated from Mercury Deposition Network ACM3 sample
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.0001
      • Unit: nanograms per meter squared
      • Number Type: rational
      Attribute Name: MDN/ACM_Bottle_Capture
      • Label: MDN/ACM Bottle Capture
      • Description: Mercury deposition network ACM precipitation collector sample bottle capture
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.1
      • Unit: millimeters
      • Number Type: rational
        • Bounds:
        • Minimum: 0
        • Maximum: 3000
      Attribute Name: MDN/ACM_Calc_Ppt
      • Label: MDN/ACM Calculated Precipitation
      • Description: Mercury deposition network ACM sample volume derived precipitation amount
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Unit: millimeters
      • Number Type: rational
      Attribute Name: MDN/ACM_Collector_Capture_Efficiency_BC/NWS
      • Label: MDN/ACM Collector Capture Efficiency BC/NWS
      • Description: Mercury deposition network ACM collector capture efficiency relative to bulk collector/NWS raingage
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Number Type: rational
      Attribute Name: MDN/ACM_Hg_Conc
      • Label: MDN/ACM Mercury Concentration
      • Description: Mercury concentration of samples collected by the Mercury Deposition Network ACM sampler
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.1
      • Unit: nanograms per liter
      • Number Type: rational
      Attribute Name: MDN/ACM_Hg_dep
      • Label: MDN/ACM Mercury Deposition
      • Description: Mercury deposition calculated from Mercury Deposition Network ACM2 samples
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.0001
      • Unit: nanograms per meter squared
      • Number Type: rational
      Attribute Name: MICB_Bottle_Collection
      • Label: MICB Bottle Capture
      • Description: MIC-b precipitation collector sample bottle capture
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.1
      • Unit: milliliters
      • Number Type: rational
        • Bounds:
        • Minimum: 0
        • Maximum: 3000
      Attribute Name: MICB_Calc_Ppt
      • Label: MICB Calculated Precipitation
      • Description: MIC-b sample volume derived precipitation amount
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Unit: millimeters
      • Number Type: rational
      Attribute Name: MICB_Collector_Capture_Efficiency_BC/NWS
      • Label: MICB Collector Capture Efficiency BC/NWS
      • Description: MIC-B collector capture efficiency relative to bulk collector/NWS raingage
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Number Type: rational
      Attribute Name: MICB_Hg_Conc
      • Label: MICB Mercury Concentration
      • Description: Mercury concentration of samples collected by the MIC-b sampler
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.1
      • Unit: nanograms per liter
      • Number Type: rational
      Attribute Name: MICB_Hg_dep
      • Label: MICB Mercury Deposition
      • Description: Mercury deposition calculated from MIC-b sample
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.0001
      • Unit: nanogram per meter squared
      • Number Type: rational
      Attribute Name: NCONBottle_Capture_Efficiency_BC/NWS
      • Label: NCONBottle Capture Efficiency BC/NWS
      • Description: Ncon bottle capture efficiency relative to bulk collector/ NWS raingage
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.000001
      • Number Type: rational
      Attribute Name: NCON_Bottle_Collection
      • Label: NCON Bottle Capture
      • Description: NCon precipitation collector sample bottle capture
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.01
      • Unit: milliliters
      • Number Type: rational
        • Bounds:
        • Minimum: 0
        • Maximum: 3000
      Attribute Name: NCON_Calc_Ppt
      • Label: NCON Calculated Precipitation
      • Description: Ncon sample volume derived precipitation amount
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Unit: millimeter
      • Number Type: rational
        • Bounds:
        • Minimum: 0
        • Maximum: 3000
      Attribute Name: NCON_Hg_Conc
      • Label: NCON Mercury Concentration
      • Description: Mercury concentration of samples collected by the Ncon sampler
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.1
      • Unit: nanograms per liter
      • Number Type: rational
      Attribute Name: NCON_Hg_dep
      • Label: NCON Mercury Deposition
      • Description: Mercury deposition calculated from Ncon sample
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.0001
      • Unit: nanogram per meter squared
      • Number Type: rational
      Attribute Name: NWS_Precip
      • Label: NWS Precipitation
      • Description: National Weather Service gage precipitiation volume
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.01
      • Unit: millimeters
      • Number Type: rational
        • Bounds:
        • Minimum: 0
        • Maximum: 6
      Attribute Name: RSD_NCON/GAGE
      • Label: RSD NCON/GAGE
      • Description: Relative standard deviation between NCON and NWS raingageparison
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Number Type: rational
      Attribute Name: RSD_MICB/GAGE
      • Label: RSD MICB/GAGE
      • Description: Relative standard deviation between MIC-b and NWS raingage
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Number Type: rational
      Attribute Name: State
      • Label: State
      • Description: U.S. state in which sample was collected
      • Storage Type: text
      • Measurment Type: nominal
      • Unit: U.S. states
      Attribute Name: _Bottle_Catch_v_Belfort_BULK/GAGE
      • Label: Bottle Catch v Belfort BULK/GAGE
      • Description: Bottle catch versus Belfort raingage bulk collector/ NWS raingage
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.00001
      • Number Type: rational
      Attribute Name: _Bottle_Catch_v_Belfort_RSD_ACM3/GAGE
      • Label: Bottle Catch v Belfort RSD ACM3/GAGE
      • Description: Bottle catch versus Belfort raingage relative standard deviation ACM3/ NWS raingage
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.000001
      • Number Type: rational
      Attribute Name: _Bottle_Catch_v_Belfort_RSD_MICB/GAGE
      • Label: Bottle Catch v Belfort RSD MICB/GAGE
      • Description: Bottle catch versus Belfort relative standard deviation MIC-b / NWS raingage
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.000001
      • Number Type: rational
      Attribute Name: _Bottle_Catch_v_Belfort_RSD_NCON/GAGE
      • Label: Bottle Catch v Belfort RSD NCON/GAGE
      • Description: Bottle catch versus Belfort relative standard deviation Ncon / NWS raingage
      • Storage Type: decimal
      • Measurment Type: ratio
      • Precision: 0.000001
      • Number Type: rational

    Methods

    • Past Methods (no longer in use)
      • wet-only precipitation sampling
        • Started: 2005-07-07
          Ended: 2006-08-01
        • Method Description: 3 different types of automated wet-only precipitation samplers collected samples from discrete precipitation events.
        • Instrumentation: Modified MIC-B precipitation sampler, Modified ACM precipitation sampler, Modified N-Con Systems precipitation sampler; NWS wet stick raingage, Belfort Raingage, Tipping bucket raingage; Data logger, reed switches, surface wetness sensor and relative humidity sensor.
        • Software: SAS, JMP
        • Quality Control Measures: National Atmospheric Deposition Program QA/QC and University of Michigan Air Quality Lab QA/QC

    Sampling Equipment

    • Mercury wet-deposition sampling
      • Started: 2005-08-01
        Ended: 2006-07-01
      • Sampling Description: Automated wet-deposition precipitation collectors sampled discrete precipitation events. Samples were collected and sent to analytical labs.
      • Frequency: After each precipitation event

    Site Characteristics

    • Site Description:



    • Site Description: West slope of Mount Mansfield in an open field at the Proctor Maple Research Center. Site has a west aspect and an 8% slope.

    • Minimum Altitude: 399 meters

    • Maximum Altitude: 400 meters