Forest Ecosystem Monitoring Cooperative

Sources & Sinks of Chloroform and its Precursors: Chloroform in Soil Gas

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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

    Investigate hypothesis that chloroacetic acids may be involved in forest decline by attempting to replicate findings from Europe of high levels of chloroform enrichment in soil-air from conifer forests.

People

  • Michael Aucott: Principal Investigator

Keywords

  • pollution, soil, soil chemistry,

Geographic Coverage

  • Coordinates
    • -72.8377, 44.52871667
    • -72.81845, 44.52871667
    • -72.81845, 44.5322
    • -72.8377, 44.5322
    • -72.8377, 44.52871667

Data Table

  • Title: Chloroform in Soil Gas
  • Start Date: 1995-06-09
  • End Date: 2005-06-11
  • Description: A soil probe was used to measure on-site soil gas which was analyzed later using gas chromatography

  • Purpose: Investigate hypothesis that chloroacetic acids may be involved in forest decline by attempting to replicate findings from Europe of high levels of trichloroacetic in conifer foliage and chloroform enrichment in soil-air from conifer forests

  • Condensed Title: Z0018_Soil

  • Object Name: VMC.18.220

  • Data Type: mySQL
  • Citation: Michael Aucott. 2005. Chloroform in Soil Gas. Rutger's University. FEMC. Can be found at: https://www.uvm.edu/femc/data/archive/project/sources-sinks-chloroform-its-precursors/dataset/chloroform-soil-gas

  • Online Distribution: https://vmc.w3.uvm.edu/vmcdevel/data/archive/project/sources-sinks-chloroform-its-precursors/dataset/chloroform-soil-gas

Attribute List

    Attribute Name: elev
    • Label: elevation
    • Description: Elevation (feet)
    • Storage Type: int
    • Measurment Type: interval
    • Unit: feet
    Attribute Name: PKID
    • Label: PKID
    • Description: PKID
    • Storage Type: int
    • Measurment Type: nominal
    Attribute Name: Tube
    • Label: Tube
    • Description: Tube
    • Storage Type: int
    • Measurment Type: nominal
    • String Format: DD/MM/YYYY
    • Number Type: -1
    Attribute Name: Location Type
    • Label: Location Type
    • Description: ''away'' means not directly under overhang of trees, ''under'' means directly under substantial tree canopy, ''ambient'' was air pulled directly from atmosphere at g [sic]
    • Storage Type: text
    • Measurment Type: ordinal
    • String Format: DD/MM/YYYY
    • Number Type: -1
    Attribute Name: Lowest Chloroform Co
    • Label: Lowest Chloroform Concentration
    • Description: Lowest Chloroform Concentration
    • Storage Type: decimal
    • Measurment Type: ratio
    • String Format: DD/MM/YYYY
    • Number Type: -1
    Attribute Name: Highest Chloroform Co
    • Label: Highest Chloroform Concentration
    • Description: Highest Chloroform Concentration
    • Storage Type: decimal
    • Measurment Type: ratio
    • String Format: DD/MM/YYYY
    • Number Type: -1

Methods

  • Past Methods (no longer in use)
    • Twig and soil gas samples
      • Started: 1995-06-09
        Ended: 1995-06-11
      • Method Description: Balsam fir twig samples and soil gas samples were collected at 5 different elevations along the Halfway House Trail. Foliage twigs from 20-30 foot height were collected and placed in glass vials. Two samples of ambient air were collected. The soil gas samples were taken using a battery-powered constant-volume type pump attached to a plastic tube and tenax-filled tube type trap with a stainless steel probe with small holes that was poked into soil at about 20 sm depth.

Sampling Equipment

  • Pole pruners, altimeter, traps, soil probe
    • Started: 1995-06-09
      Ended: 1995-06-11
    • Sampling Description: Pole pruners. Altimeter. Tenax-filled traps attached to constant volume type pump and stainless steel soil probe.

Site Characteristics

  • Site Description: West slope of Mt. Mansfield at five elevations: 2050, 2590, 3050, 3620, and 3850.