Details and Metadata

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Methods

The methods followed in the creation of the dataset, including description of field, laboratory and processing steps, and quality control procedures

Current Methods


  • Started: 1992-12-15

    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.

Past Methods (No longer in use)

  • Precipitation samples
    Started: 1992-12-15
    Ended: 2006-07-01

    Precipitation samples collected every morning following precipitation

Dataset Fields

Detailed documentation of the fields comprising the dataset, including the type of measurement, units where applicable, and any controlled vocabularies or code lists present in the data


Field Name Caption Description Additional Information
BatchBatch

Batch identifier

Nominal
DateOnDate On

Date the sample train was put in

DateTime Date/Time Format:
StudyStudy code

Study code

Nominal
SiteSite

Site code

Nominal
samplenumberSample Number

Sample number

Ordinal
tag1Tag 1

Unknown

Nominal
tag2Tag 2

Unknown

Nominal
typeType

Type

Nominal
NN

Unknown

Nominal
analyticalVolume_mlAnalytical Volume

Volume of analytical sample

Ratio
Unit: milliliter
Precision: 1
BlankConc_Ng_LField Blank Concentration

Concentration of mercury on the field blank

Ratio
Unit: number
Precision: 0.001
DetectionLimit_NgDetection Limit

Limit of detection for mercury

Ratio
Unit: nanogram
Precision: 0.000000001
ResultResulting Concentration

Concentration of mercury after analysis

Ratio Units:
ResultUnitsResulting Concentration Units

Units used in reporting the final concentration

Nominal
PrecipAmnt_cmPrecipitation amount

Amount of precipitation yielding sample

Ratio
Unit: centimeter
Precision: 0.001
Deposition_ug_m2Mercury Deposition Amount

Amount of mercury deposited in sample

Ratio
Unit: micrograms per square meter
Precision: 0.001

Sampling Equipment

Equipment and software used to collect data, including how that equipment was used.

Past Sampling Equipment (No longer in use)

  • Precipitaton Collector
    Started: 1992-12-15
    Ended: 2006-12-31

    MIC-B wet only precipitation collector

Site Characteristics

The spatial extent of the dataset site coverage, and descriptions of the spatial extent and context for the data collection

  • Site Description

    West slope of Mount Mansfield at the Proctor Maple Research Center.