Forest Ecosystem Monitoring Cooperative(802) 656-0683femc@uvm.eduwww.uvm.edu/femc705 Spear StreetSouth BurlingtonVermont05403United States of AmericaUnited States Environmental Protection Agency (EPA) funderUnited States Department of Agriculture (USDA), Forest Service Green Mountain National ForestpartnerCASTNET (Clean Air Status and Trend Network) Air Quality ChemistryCASTNET is a national monitoring network established to assess trends in pollutant concentrations, atmospheric deposition, and ecological effects due to changes in air pollutant emissions. Regional CASTNET dry deposition chemistry data from New York and northern New England are archived here.CASTNET (Clean Air Status and Trend Network) Air Quality ChemistryScherbatskoyTimBurtNancymeteorologydry depositionwet depositionnitrogenozonesulfurClean Air Status and Trend Network (CASTNet): Regional Dry Deposition Chemistry2003-01-012006-11-07Measurement of sulfate, calcium, magnesium, nitrate, potassium, sulfur dioxide, nitric acid and ammonium from filtersTo provide site specific data of wet deposition of major ions. To provide air quality data specific to the Lye Brook Wilderness Area, a Class I Wilderness Area, to support research on the effects of air pollution on the Air Quality Related Values (AQRV) of the wilderness area.Z0020_DryChemRegionalVMC.20.231mySQLNancy Burt. 2007. Clean Air Status and Trend Network (CASTNet): Dry Deposition Chemistry. Linked. https://vmc.w3.uvm.edu/vmcdevel/CI4/data/archive/project/clean-air-status-trend-network-castnet/dataset/clean-air-status-trend-network-castnet-5lab_keyLab ID NumberLaboratory sample identification numbertextsite_idSite ID NumberSite identification codetexttypeSample TypeSample type codetextAComposite of day/night samples by lab at time of original submittalBComposite of day/night samples from DRYCHEM_DAYNIGHTCContinuous sample used for calculationCodeContinuous sample used for calculationdateonDate Sampling StartedDate and time sample collection began, Local Standard TimedatetimeYYYY-MM-DD hh:mm:ssdateoffDate Sampling EndedDate and time sample collection ended, Local Standard TimedatetimeM/DD/YYYY hh:mm:sstso4Teflon Filter SulphateSulfate (SO4) concentration from Teflon filterdecimalcustomMicrogramsPerCubicMeter0.0001real01000tso4_fTSO4 Data Flag Data quality code for TSO4textNULLNull or missing value"#"Both U and L flags applyIInvalid chemistry data and/or less than 75% valid flow dataLLess than 90% but greater than or equal to 75% valid flow dataMMissing or completely invalid flow dataNSample not analyzedRRe-run value used in calculationSBoth L and R flags applyUValue is less than detection limittno3Teflon Filter NitrateNitrate (NO3) concentration from Teflon filter decimalcustomMicrogramsPerCubicMeter0.0001real01000tno3_fTNO3 Data FlagData quality code for TNO3text#Both U and L flags applyIInvalid chemistry data and/or less than 75% valid flow dataLLess than 90% but greater than or equal to 75% valid flow dataMMissing or completely invalid flow dataNSample not analyzedNULLValid dataRRe-run value used in calculationSBoth L and R flags applyUUndetected - value listed is the reporting limit corrected by flow volume"#"Both U and L flags applytnh4Teflon Filter AmmoniumAmmonium (NH4) concentration from Teflon filter decimalcustomMicrogramsPerCubicMeter0.0001real01000tnh4_fTNH4 Data FlagData quality code for TNH4textNULLNull or missing value"#"Both U and L flags applyIInvalid chemistry data and/or less than 75% valid flow dataLLess than 90% but greater than or equal to 75% valid flow dataMMissing or completely invalid flow dataNSample not analyzedRRe-run value used in calculationSBoth L and R flags applyUValue is less than detection limitcaTeflon Filter CalciumCalcium (Ca) concentration from Teflon filter decimalcustomMicrogramsPerCubicMeter0.0001real01000ca_fCA Data FlagData quality code for CAtext#Both U and L flags applyIInvalid chemistry data and/or less than 75% valid flow dataLLess than 90% but greater than or equal to 75% valid flow dataMMissing or completely invalid flow dataNSample not analyzedNULLValid dataRRe-run value used in calculationSBoth L and R flags applyUUndetected - value listed is the reporting limit corrected by flow volume"#"Both U and L flags applymgTeflon Filter MagnesiumMagnesium (Mg) concentration from Teflon filter ug/m^3decimalcustomMicrogramsPerCubicMeter0.0001realmg_fMG Data FlagData quality code for MGtext#Both U and L flags applyIInvalid chemistry data and/or less than 75% valid flow dataLLess than 90% but greater than or equal to 75% valid flow dataMMissing or completely invalid flow dataNSample not analyzedNULLValid dataRRe-run value used in calculationSBoth L and R flags applyUUndetected - value listed is the reporting limit corrected by flow volume"#"Both U and L flags applynaTeflon Filter SodiumSodium (Na) concentration from Teflon filter ug/m^3decimalcustomMicrogramsPerCubicMeter0.0001realna_fNA Data FlagData quality code for NAtext#Both U and L flags applyIInvalid chemistry data and/or less than 75% valid flow dataLLess than 90% but greater than or equal to 75% valid flow dataMMissing or completely invalid flow dataNSample not analyzedNULLValid dataRRe-run value used in calculationSBoth L and R flags applyUUndetected - value listed is the reporting limit corrected by flow volume"#"Both U and L flags applykTeflon Filter PotassiumPotassium (K) concentration from Teflon filter ug/m^3decimalcustomMicrogramsPerCubicMeter0.0001realk_fK Data FlagData quality code for Ktext#Both U and L flags applyIInvalid chemistry data and/or less than 75% valid flow dataLLess than 90% but greater than or equal to 75% valid flow dataMMissing or completely invalid flow dataNSample not analyzedNULLValid dataRRe-run value used in calculationSBoth L and R flags applyUUndetected - value listed is the reporting limit corrected by flow volume"#"Both U and L flags applynso4Nylon Filter SulfateSulfate (SO4) concentration from Nylon filter ug/m^3decimalcustomMicrogramsPerCubicMeter0.0001realnso4_fNSO4 Data FlagData quality code for NSO4text#Both U and L flags applyIInvalid chemistry data and/or less than 75% valid flow dataLLess than 90% but greater than or equal to 75% valid flow dataMMissing or completely invalid flow dataNSample not analyzedNULLValid dataRRe-run value used in calculationSBoth L and R flags applyUUndetected - value listed is the reporting limit corrected by flow volume"#"Both U and L flags applynhno3From Nylon Filter Nitric AcidNitric acid (NO3) concentration from Nylon filter ug/m^3decimalcustomMicrogramsPerCubicMeter0.0001realnhno3_fNHNO3 Data FlagData quality code for NHNO3text#Both U and L flags applyIInvalid chemistry data and/or less than 75% valid flow dataLLess than 90% but greater than or equal to 75% valid flow dataMMissing or completely invalid flow dataNSample not analyzedNULLValid dataRRe-run value used in calculationSBoth L and R flags applyUUndetected - value listed is the reporting limit corrected by flow volume"#"Both U and L flags applywso2SO2 From Whatman Filter Sulfur dioxide (SO2) concentration from Whatman filter ug/m^3decimalcustomMicrogramsPerCubicMeter0.0001realwso2_fWSO2 Data FlagData quality code for WSO2text#Both U and L flags applyIInvalid chemistry data and/or less than 75% valid flow dataLLess than 90% but greater than or equal to 75% valid flow dataMMissing or completely invalid flow dataNSample not analyzedNULLValid dataRRe-run value used in calculationSBoth L and R flags applyUUndetected - value listed is the reporting limit corrected by flow volumewno3Whatman Filter NitrateNitrate (NO3) concentration from Whatman filter decimalcustomMicrogramsPerCubicMeter0.0001realwno3_fWNO3 Data FlagData quality code for WNO3text#Both U and L flags applyIInvalid chemistry data and/or less than 75% valid flow dataLLess than 90% but greater than or equal to 75% valid flow dataMMissing or completely invalid flow dataNSample not analyzedNULLValid dataRRe-run value used in calculationSBoth L and R flags applyUUndetected - value listed is the reporting limit corrected by flow volume"#"Both U and L flags applytotal_so2Total Sulfur Dioxide Calculated ConcentrationTotal sulfur dioxide (SO2) concentration calculated from [WSO2]+0.667*[NSO4] Note W = Whatman filter and N = Nylon filterdecimalcustomMicrogramsPerCubicMeter0.0001real01000total_no3Total Nitrate Calculated ConcentrationTotal nitrate (NO3) concentration calculated from [tno3]+0.9841*[nhno3] Note t=Teflon filterdecimalcustomMicrogramsPerCubicMeter0.0001real01000flow_volumeFlow VolumeFlow volume decimal0.0001rational01000flow_volume_fFlow Volume Data FlagData quality code for FLOW_VOLUMEtextNULLNull or missing value"#"Both U and L flags applyIInvalid chemistry data and/or less than 75% valid flow dataLLess than 90% but greater than or equal to 75% valid flow dataMMissing or completely invalid flow dataNSample not analyzedRRe-run value used in calculationSBoth L and R flags applyUValue is less than detection limitvalid_hoursValid Hours Valid hours during sampling periodtextvalid_hours_fValid Hours Data FlagData quality code for VALID_HOURStext32Valid hours in sampling period hours33Flag for VALID_HOURS comment_codesComment CodesComment codes (separated by spaces)text1Unidentified debris/particles on filter2Torn; hole; ripped filter noted during unpacking3Excessively wet filter noted upon unpacking4Excessively dirty filter noted upon unpacking5Filter pack loose upon arrival; possible leakage during sampling period6Apparent solenoid problem7Filter pack end caps cracked/missing upon receipt8Outside of filter pack excessively dirty upon receipt9Support screen raised up10Insect inside filter pack; noted during unpacking11Laboratory accident12Filter pack on tower incorrect length of time13Filter pack not run in field14Unusual odor noticed during unpacking15Low extraction efficiency off filter16On/off dates and times are assumed17Filter given to EPA for analysis18Field accident19Field equipment problem20Filter used for special study21Forest fire/agricultural activity in area22Site closed23Sample report form not received with filter pack24Chain of custody incomplete or incorrect25Filter pack run out of sequence26Suspect value; reason not recordedNNumeric code following applies to the Nylon filter analysisTNumeric code following applies to the Teflon filter analysisWNumeric code following applies to the Whatman filter analysisqa_codeQA CodeQuality assurance level of the record. (see QAPP for definition of quality assurance levels)textdDateon or dateoff questionableL1Level 1 validated dataL2Level 2 validated dataxData quality issue has been identified and will be resolved in future update