Weekly ambient concentrations of SO2 and HNO3 gases, and SO4, NO3, NH4 and base cation concentrations for particles as measured by open-face filter packs.
Monitoring Site Locations
Monitoring Site Metadata Get this table in Microsoft Excel
SiteCodeSiteNameCTSTEPACodeLatLonElevStartEnd
ABT147AbingtonUSCT09015999141.84-72.0120901/06/9410/30/18
ACA416Acadia NPUSME23009010344.38-68.2615212/08/9810/30/18
ALC188Alabama-CoushattaUSTX48373999130.42-94.410104/06/0410/30/18
ALH157AlhambraUSIL17119999138.87-89.6216407/05/8810/30/18
ALH257Alhambra CollocatedUSIL 38.87-89.6216403/07/8909/28/90
ANA115Ann ArborUSMI26161999142.42-83.926707/05/8810/30/18
ANL146Argonne NLUSIL 41.7-87.9922907/21/8704/06/93
ARE128ArendtsvilleUSPA42001999139.92-77.3126907/05/8810/30/18
ARE228Arendtsville CollocatedUSPA 39.92-77.3126910/02/9005/02/95
ASH135AshlandUSME23003999146.6-68.4123501/03/8910/30/18
ASH235Ashland CollocatedUSME 46.6-68.4123509/12/9507/31/01
BAS601BasinUSWY 44.28-108.04124211/13/1210/30/18
BBE401Big Bend NPUSTX48043010129.31-103.18105208/01/9510/30/18
BEL116BeltsvilleUSMD24033999139.03-76.824611/08/8810/30/18
BFT142BeaufortUSNC37031999134.88-76.62201/10/9408/21/18
BUF603BuffaloUSWY 44.14-106.11132411/13/1210/30/18
BVL130BondvilleUSIL17019999140.05-88.3721202/16/8810/30/18
BWR139Blackwater NWRUSMD24019999138.44-76.11407/11/9510/30/18
CAD150Caddo ValleyUSAR05019999134.18-93.17110/11/8810/30/18
CAN407Canyonlands NPUSUT49037010138.46-109.82181402/01/9510/31/18
CAT175ClaryvilleUSNY 41.94-74.5576505/17/9410/30/18
CDR119Cedar CreekUSWV54021999138.88-80.8523411/17/8710/30/18
CDZ171CadizUSKY21221999136.79-87.8518910/05/9310/30/18
CHA267Chiricahua NM CollocatedUSAZ 32.01-109.39157005/30/8909/29/92
CHA467Chiricahua NM (NPS)USAZ04003800132.01-109.39157005/02/8910/30/18
CHE185Cherokee NationUSOK40001900935.75-94.6729904/09/0210/30/18
CKT136CrockettUSKY21175999137.92-83.0745508/31/9310/30/18
CND125CandorUSNC37123999135.26-79.8419810/02/9010/30/18
CNT169CentennialUSWY56001999141.37-106.24317805/16/8910/30/18
CON186Converse StationUSCA 34.19-116.91183706/24/0301/04/11
COW005Coweeta Screwdriver KnobUSNC 35.05-83.4596011/24/1408/16/16
COW137Coweeta 137USNC37113999135.06-83.4368611/10/8710/30/18
CTH110Connecticut HillUSNY36109999142.4-76.6550110/06/8710/30/18
CVL151CoffeevilleUSMS28161999134-89.813401/03/8910/30/18
DCP114Deer CreekUSOH39047999139.64-83.2626710/04/8810/30/18
DCP214Deer Creek CollocatedUSOH 39.64-83.2626711/13/9009/24/92
DEN417Denali NPUSAK02068000363.72-148.9766110/13/9810/30/18
DEV412Death Valley NMUSCA 36.51-116.8412502/28/9501/08/08
DIN431Dinosaur NMUSUT 40.44-109.3146306/17/1410/30/18
DUK008Duke ForestUSNC 35.97-79.116405/09/1709/25/18
EGB181EgbertCAON 44.23-79.7825101/03/9510/30/18
EGB281Egbert CollocatedCAON 44.23-79.7825101/10/9512/18/07
ESP127Edgar EvinsUSTN47041999136.04-85.7330203/29/8810/30/18
EVE419Everglades NPUSFL 25.39-80.68210/13/9810/30/18
FOR605Fortification CreekUSWY 44.34-105.92140805/07/1310/30/18
GAS153Georgia StationUSGA13231999133.18-84.4127007/05/8810/30/18
GAS253Georgia Station CollocatedUSGA 33.18-84.4127002/07/8909/09/90
GLR468Glacier NP NPSUSMT30029800148.51-11497601/03/8910/30/18
GRB411Great Basin NPUSNV32033010139.01-114.22206005/23/9510/30/18
GRC474Grand Canyon NP (NPS)USAZ04005800136.06-112.18207305/23/8910/30/18
GRS420Great Smoky NP - Look RockUSTN47009010135.63-83.9479310/20/9810/30/18
GTH161GothicUSCO08051999138.96-106.98292605/23/8910/30/18
HOW132HowlandUSME23019999145.22-68.716912/01/9210/30/12
HOW191Howland AmerifluxUSME 45.2-68.746010/11/1110/30/18
HOX148HoxeyvilleUSMI26165999144.18-85.7430511/07/0010/30/18
HVT424Hawaii Volcanoes NPUSHI 19.45-155.3119908/10/9907/17/04
HWF187Huntington Wildlife ForestUSNY36031999143.97-74.2250206/04/0210/30/18
IRL141Indian River LagoonUSFL12061999127.85-80.46207/17/0110/30/18
JOT403Joshua Tree NMUSCA06071900234.07-116.39124402/21/9510/30/18
KEF112Kane Exp. ForestUSPA42047999141.6-78.7762201/09/8910/30/18
KIC003Kickapoo TribeUSKS 39.85-95.6636702/25/1410/30/18
KNZ184Konza PrairieUSKS20161999139.1-96.6134804/02/0210/30/18
KVA428Kobuk Valley NPUSAK 67.18-157.898806/13/0409/28/04
LAV410Lassen Volcanic NPUSCA06089300340.54-121.57175608/01/9510/30/18
LCW121Lilley C. WoodsUSKY 37.13-82.9933501/26/8812/28/93
LRL117Laurel HillUSPA42111999139.99-79.2561512/22/8710/30/18
LYE145Lye BrookUSVT 43.05-73.0673004/06/9402/13/07
LYK123LykensUSOH 40.92-8330301/17/8910/12/10
MAC426Mammoth Cave National ParkUSKY21061050137.28-86.2623607/30/0210/30/18
MCK131MackvilleUSKY21229999137.7-85.0535308/07/9010/30/18
MCK231Mackville CollocatedUSKY21229999137.7-85.0535301/05/9310/30/18
MEV405Mesa Verde NPUSCO08083010137.2-108.49216501/17/9510/30/18
MKG113M.K. GoddardUSPA42085999141.42-80.1438401/19/8810/30/18
MOR409Mount Rainier NPUSWA53053101046.76-122.1242109/05/9507/30/13
NCS415North Cascades NPUSWA 48.54-121.4510902/20/9601/02/08
NEC602NewcastleUSWY 43.87-104.19146811/13/1210/30/18
NIC001Nicks LakeUSNY 43.68-74.9952511/27/1209/11/18
NPT006Nez Perce TribeUSID 46.28-116.0294512/29/1510/30/18
OLY421Olympic NPUSWA 48.1-123.4312510/13/9802/01/05
ONL102Oak RidgeUSTN 35.96-84.29 01/13/8712/27/88
OXF122OxfordUSOH39017999139.53-84.7228408/25/8710/30/18
PAL190PAL190US     05/01/0710/30/18
PAR107ParsonsUSWV54093999139.09-79.6651001/26/8810/30/18
PAR207Parsons CollocatedUSWV 39.09-79.6651003/07/8909/07/90
PBF129PerryvilleUSKY 37.68-84.9727908/18/8707/28/90
PED108Prince EdwardUSVA51147999137.17-78.3115011/10/8710/30/18
PET427Petrified ForestUSAZ04017011934.88-109.97172309/24/0210/30/18
PIN414Pinnacles NMUSCA06069000336.48-121.1633505/23/9510/30/18
PND165PinedaleUSWY56035999142.92-109.79238801/03/8910/30/18
PNF126CranberryUSNC37011999136.1-82.04121901/03/8910/30/18
POF425Poker Flats (Yukon Flats) NMUSAK 65.12-147.4349507/14/9802/04/04
PRK134PerkinstownUSWI55119999145.21-90.647210/04/8810/30/18
PSU106Penn StateUSPA42027999140.72-77.9337801/13/8710/30/18
QAK172Quaker CityUSOH39121999139.94-81.3437210/05/9310/30/18
RCK163Reynolds CreekUSID 43.21-116.75119806/06/8909/28/93
RCK263Reynolds Creek CollocatedUSID 43.21-116.75119810/02/9012/15/92
RED004Red Lake NationUSMN 47.86-94.8437209/02/1410/30/18
ROM206Rocky Mtn NP CollocatedUSCO08069999140.28-105.55280407/10/0110/30/18
ROM406Rocky Mtn NPUSCO08069000740.28-105.55274301/03/9510/30/18
RTP101Res. Triangle Pk.USNC 35.91-78.88 01/13/8701/02/90
SAL133Salamonie ReservoirUSIN18169999140.82-85.6625007/05/8810/30/18
SAN189SAN189US     07/11/0610/30/18
SAV164Saval RanchUSNV 41.29-115.86187305/30/8909/28/93
SEK402Sequoia NP - Lookout PtUSCA 36.43-118.76122502/11/9702/22/05
SEK430Sequoia NP - Ash MountainUSCA 36.49-118.8245704/12/0510/30/18
SHE604SheridanUSWY 44.93-106.85111511/13/1210/30/18
SHN418Shenandoah NP - Big Meadows NPSUSVA51113000338.52-78.44107307/06/8810/30/18
SND152Sand MountainUSAL01049999134.29-85.9735201/03/8910/30/18
SPD111SpeedwellUSTN47025999136.47-83.8336106/13/8910/30/18
STK138StocktonUSIL17085999142.29-9027401/04/9410/30/18
SUM156SumatraUSFL12077999130.11-84.991401/03/8910/16/18
SUM256Sumatra CollocatedUSFL 30.11-84.991411/13/9003/04/93
THR422Theodore Roosevelt NPUSND38007000246.9-103.3885010/12/9810/30/18
UIN162UintaUSUT 40.55-110.32250005/09/8909/28/93
UND002UnderhillUSVT 44.53-72.8739911/20/1210/30/18
UVL124UnionvilleUSMI26157999143.61-83.3620107/05/8810/30/18
VII423Virgin Islands NP - Lind PtUSVI 18.34-64.88010/13/9801/20/04
VIN140VincennesUSIN18083999138.74-87.4813408/11/8710/30/18
VOY413Voyageurs NPUSMN27137003448.41-92.8342706/18/9610/23/18
VPI120Horton StationUSVA51071999137.33-80.5692006/09/8710/30/18
WEL149WellstonUSMI 44.22-85.8229507/05/8808/04/98
WFM007Whiteface Mountain SpecialUSNY 44.39-73.8657006/09/1510/03/17
WFM105Whiteface Mtn.USNY 44.39-73.8657001/13/8710/30/18
WNC429WNC429      11/25/0310/30/18
WPA103West Point AUSNY 41.35-74.05 01/13/8709/27/88
WPB104West Point BUSNY 41.35-74.0520301/13/8709/28/93
WSP144Wash. CrossingUSNJ34021999140.31-74.876101/03/8910/30/18
WST109WoodstockUSNH33009999143.94-71.725801/03/8910/30/18
YEL408Yellowstone NP (YEL408)USWY56039101144.56-110.4246907/03/9610/30/18
YOS404Yosemite NP - Turtleback DomeUSCA06043000337.71-119.7160510/03/9510/30/18
CodeNameUnitsfromSourceCodeSourceUnits
CAtCalcium (Tsp)µg/m^3 LC<--caµg/m^3 LC
CHLtChloride (Tsp)µg/m^3 LC<--clµg/m^3 LC
FLOW_VOLUMEFlow VolumeL/min STP<--FLOW_VOLUMEL/min STP
KtPotassium (Tsp)µg/m^3 LC<--kµg/m^3 LC
MGtMagnesium (Tsp)µg/m^3 LC<--mgµg/m^3 LC
NAtSodium (Tsp)µg/m^3 LC<--naµg/m^3 LC
HNO3Nitric Acidµg/m^3 LC<--nhno3µg/m^3 LC
SO4_nylonSulfate from nylonµg/m^3 LC<--nso4µg/m^3 LC
NH4tAmmonium Ion (Tsp)µg/m^3 LC<--tnh4µg/m^3 LC
NO3tNitrate (Tsp)µg/m^3 LC<--tno3µg/m^3 LC
NO3sumNitrate (total tsp & vapor)µg/m^3 LC<--total_no3µg/m^3 LC
SO2Sulfur Dioxideµg/m^3 LC<--total_so2µg/m^3 LC
SO4tSulfate (Tsp)µg/m^3 LC<--tso4µg/m^3 LC
VALID_HOURSValid hours during sampling period.tons/year<--VALID_HOURStons/year
NO3_whatmanNitrate from whatmanµg/m^3 LC<--wno3µg/m^3 LC
SO2_whatmanSulfur dioxide from whatmanµg/m^3 LC<--wso2µg/m^3 LC
FlagCodeDescriptionCategorySourceColumn
!X and U applyData Quality%_F
#Both U and L flags applyData Quality%_f
$L and U applyData Quality%_F
<Invalid chemistry data and/or less than 75% valid flow dataData Quality%_F
0Level 0 validated dataQuality AssuranceQA_CODE
1Level 1 validated dataQuality AssuranceQA_CODE
1XLevel 1 data that are suspect based on manual screening. Data should be omitted from any statistical analyses.Quality AssuranceQA_CODE
2Level 2 validated dataQuality AssuranceQA_CODE
3Level 3 validated dataQuality AssuranceQA_CODE
DDateon or dateoff questionableQuality Assuranceqa_code
GSGovernment shutdown periodQuality AssuranceQA_CODE
IInvalid chemistry data and/or less than 75% valid flow dataData Quality%_f
LLess than 90% but greater than or equal to 75% valid flow dataData Quality%_f
MMissing or completely invalid flow dataData Quality%_f
NSample not analyzedData Quality%_f
RRe-run value used in calculationData Quality%_f
SBoth L and R flags applyData Quality%_f
UUndetected - value listed is the reporting limit corrected by flow volumeData Quality%_f
xData quality issue has been identified and will be resolved in future updateQuality Assuranceqa_code
Additional Details
Not specified