The Interagency Monitoring of Protected Visual Environments (IMPROVE) program is a cooperative measurement effort governed by a steering committee of representatives from Federal, state, and regional organizations. The IMPROVE monitoring program was established in 1985 to facilitate the creation of Federal and State implementation plans for the protection of visibility in Class I areas (156 national parks and wilderness areas) as stipulated by the 1977 amendments to the Clean Air Act.
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IMPROVE Data Use: For journal publications, please inform Loretta Wilson (loretta.wilson@colostate.edu) of the planned publication. Drafts of publications will be reviewed upon request for issues that could affect the data interpretation. Preferred Reference: Please reference the Malm,et al. (1994) article below when using IMPROVE data. Malm, W. C., J. F. Sisler, D. Huffman, R. A. Eldred, and T. A. Cahill (1994), Spatial and seasonal trends in particle concentration and optical extinction in the United States, J. Geophys. Res., 99, 1347-1370. Preferred Acknowledgment: IMPROVE is a collaborative association of state, tribal, and federal agencies, and international partners. US Environmental Protection Agency is the primary funding source, with contracting and research support from the National Park Service. The Air Quality Group at the University of California, Davis is the central analytical laboratory, with ion analysis provided by Research Triangle Institute, and carbon analysis provided by Desert Research Institute. (Also: Prior to use, all data users are encouraged to review the IMPROVE data advisories located on the IMPROVE website: http://vista.cira.colostate.edu/IMPROVE/Data/QA_QC/Advisory.htm)
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IMPROVE Aerosol Raw Data (Native Format), by Site
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IMPROVE Aerosol Raw Data (FED Format), by Site
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Monitoring Site Locations
Monitoring Site Metadata Get this table in Microsoft Excel
SiteCodeSiteNameCTSTEPACodeLatLonElevStartEnd
ACAD1Acadia NPUSME23009010344.38-68.2615703/02/8812/30/17
ADPI1Addison PinnacleUSNY36101900042.09-77.2151204/04/0106/28/10
AGTI1Agua TibiaUSCA06065900033.46-116.9750812/20/0012/30/17
AMBL1AmblerUSAK02188900067.1-157.867809/03/0311/29/04
ARCH1Arches NPUSUT49019010138.78-109.58172203/02/8812/29/99
AREN1ArendtsvilleUSPA42001900039.92-77.3126704/04/0112/31/10
ATLA1South DekalbUSGA13089000233.69-84.2924303/01/0412/30/17
BADL1Badlands NPUSSD46071000143.74-101.9473603/02/8812/30/17
BALA1Barrier LakeCAAB 51.03-115.03139101/15/1103/29/17
BALD1Mount BaldyUSAZ04001800134.06-109.44250903/01/0012/30/17
BALT1BaltimoreUSMD24005900039.25-76.717806/02/0412/31/06
BAND1Bandelier NMUSNM35028100235.78-106.27198803/02/8812/30/17
BIBE1Big Bend NPUSTX48043010129.3-103.18106703/02/8812/30/17
BIBEXBig Bend NP (#2)USTX48043010129.3-103.18106709/03/0305/19/13
BIRM1North BirminghamUSAL01073002333.55-86.8117603/01/0412/30/17
BLIS1Bliss SP (TRPA)USCA06017900038.98-120.1213109/01/9012/30/17
BLMO1Blue MoundsUSMN27133900043.72-96.1947306/01/0212/29/15
BLMOXBlue Mounds (#2)USMN27133900043.72-96.1947309/03/0412/29/15
BOAP1Bosque del ApacheUSNM35053900033.87-106.85139004/15/0012/30/17
BOLA1Boulder LakeUSWY 42.85-109.64229608/26/0912/30/17
BOND1BondvilleUSIL17019100140.05-88.3726303/08/0112/30/17
BOWA1Boundary Waters Canoe AreaUSMN27075900047.95-91.552706/01/9112/30/17
BRCA1Bryce Canyon NPUSUT49017010137.62-112.17248103/02/8812/30/17
BRET1BretonUSLA22075900029.12-89.211108/16/0008/29/05
BRID1Bridger WildernessUSWY56035900042.97-109.76262703/02/8812/30/17
BRIG1Brigantine NWRUSNJ34001900039.47-74.45509/04/9112/30/17
BRIS1Breton IslandUSLA22075900030.11-89.76-701/16/0812/30/17
BRISXBreton Island (#2)USLA22075900030.11-89.76-701/16/0805/19/13
BRLA1Brooklyn LakeUSWY56001900041.37-106.24319607/31/9301/31/04
BRMA1BridgtonUSME23005010344.11-70.7323403/14/0112/29/15
BYIS1Baengnyeong IslandKR  37.97124.6310003/20/1312/30/17
BYISXBaengnyeong Island (#2)KR  37.97124.6310008/01/1512/30/17
BYISXBaengnyeong Island Co-located A Module (#2)KR  37.97124.6310004/23/1407/29/15
CABA1Casco BayUSME23005900243.83-70.062703/14/0112/30/17
CABI1Cabinet MountainsUSMT30089900047.95-115.67144107/26/0012/30/17
CACO1Cape CodUSMA25001000241.98-70.024904/04/0112/30/17
CACR1Caney CreekUSAR05113000334.45-94.1468306/24/0012/30/17
CADI1CadizUSKY21221900036.78-87.8519203/08/0112/31/10
CANY1Canyonlands NPUSUT49037900038.46-109.82179803/02/8812/30/17
CAPI1Capitol Reef NPUSUT49055900038.3-111.29189704/19/0012/30/17
CAVE1Carlsbad CavernsUSNM 32.18-104.44135507/30/1712/30/17
CEBL1Cedar BluffUSKS20195000138.77-99.7666606/01/0212/30/17
CHAS1Chassahowitzka NWRUSFL12017900028.75-82.55403/03/9312/30/17
CHER1Cherokee NationUSOK40071901036.96-97.0334209/02/0204/20/10
CHIC1ChicagoUSIL17031007641.75-87.7119509/03/0308/29/05
CHIR1Chiricahua NMUSAZ04003800132.01-109.39155503/02/8812/30/17
CLPE1Cloud PeakUSWY56019900044.33-106.96247106/01/0207/29/15
COGO1Columbia Gorge #1USWA53039001045.57-122.2123009/18/9610/30/11
COHI1Connecticut HillUSNY36109900042.4-76.6551904/04/0106/25/06
COHU1CohuttaUSGA13213900034.79-84.6373506/03/0012/30/17
CORI1Columbia River GorgeUSWA53039001145.66-12117906/02/9312/30/17
CRES1Crescent LakeUSNE31069900041.76-102.43120706/01/0212/29/15
CRLA1Crater Lake NPUSOR41035800142.9-122.14199603/02/8812/30/17
CRMO1Craters of the Moon NMUSID16023010143.46-113.56181803/04/9212/30/17
DENA1Denali NPUSAK02068000363.72-148.9765803/02/8812/30/17
DETR1DetroitUSMI26163000142.23-83.2118009/03/0312/30/17
DEVA1Death Valley NPUSCA06027010136.51-116.8513009/04/9304/28/13
DOLA1Dome Lands WildernessUSCA06029990235.7-118.291406/01/9412/29/99
DOME1Dome Lands WildernessUSCA06029900135.73-118.1492702/02/0012/30/17
DOSO1Dolly Sods WildernessUSWV54093900039.11-79.43118209/04/9112/30/17
DOUG1DouglasUSAZ04003900031.35-109.54123006/02/0410/30/15
EGBE1EgbertCAON 44.23-79.7825109/01/0512/30/17
ELDO1El Dorado SpringsUSMO29039000137.7-94.0329803/03/0212/29/15
ELLI1EllisUSOK40045089036.09-99.9469703/03/0210/18/15
EVER1Everglades NPUSFL12086003025.39-80.68109/03/8812/30/17
EVERXEverglades NP (#2)USFL12086003025.39-80.68106/02/0312/30/17
FCPC1Forest County Potawatomi CommunityUSWI55041000745.56-88.8156411/17/1612/30/17
FLAT1FlatheadUSMT30047900047.77-114.27158006/01/0212/30/17
FLTO1Flat TopsUSCO 39.92-107.63259310/27/1112/30/17
FOPE1Fort PeckUSMT30085900048.31-105.163806/01/0212/30/17
FRES1FresnoUSCA06019000836.78-119.7710009/03/0412/30/17
FRRE1Frostburg Reservoir (Big Piney Run)USMD24023900039.71-79.0176703/01/0412/30/17
FRREXFrostburg Reservoir (Big Piney Run) (#2)USMD24023900039.71-79.0176703/01/0412/30/17
GAAR1Gates of the Arctic NPUSAK 66.9-151.5219611/02/0810/30/15
GAMO1Gates of the MountainsUSMT30049900046.83-111.71238707/26/0012/30/17
GAMOXGates of the Mountains (#2)USMT30049900046.83-111.71238709/03/0305/13/13
GICL1Gila WildernessUSNM35003900033.22-108.24177603/02/9412/30/17
GLAC1Glacier NPUSMT30029900148.51-11497503/02/8812/30/17
GRBA1Great Basin NPUSNV32033900039.01-114.22206603/04/9212/30/17
GRCA1Hopi Point #1USAZ04005200236.07-112.15216403/02/8812/29/99
GRCA2Hance Camp at Grand Canyon NPUSAZ04005810235.97-111.98226703/02/9612/30/17
GRGU1Great Gulf WildernessUSNH33007400244.31-71.2245406/03/9512/30/17
GRRI1Great River BluffsUSMN27169900043.94-91.4137006/01/0212/30/17
GRSA1Great Sand Dunes NMUSCO08003900037.72-105.52249803/02/8812/30/17
GRSM1Great Smoky Mountains NPUSTN47009010135.63-83.9481103/02/8812/30/17
GRSM9Great Smoky Mountains NP (PM10 Speciation)USTN 35.63-83.9481501/01/0504/28/05
GUMO1Guadalupe Mountains NPUSTX48109900031.83-104.81167203/02/8812/30/17
HACR1Haleakala CraterUSHI 20.76-156.25215801/24/0712/30/17
HALE1Haleakala NPUSHI15009900020.81-156.28115312/01/9005/30/12
HAVO1Hawaii Volcanoes NPUSHI15001900219.43-155.26125903/02/8812/30/17
HECA1Hells CanyonUSOR41063000244.97-116.8465509/03/0012/30/17
HEGL1Hercules-GladesUSMO29213000336.61-92.9240403/02/0112/30/17
HEGLXHercules-Glades (#2)USMO29213000336.61-92.9240409/03/0412/30/17
HILL1HillsideUSAZ04025000534.43-112.96151104/19/0105/31/05
HOOV1HooverUSCA06051900038.09-119.18256106/06/0112/30/17
HOOVXHoover (#2)USCA06051900038.09-119.18256106/02/0305/13/13
HOUS1Houston Deer Park #2USTX48201103929.67-95.13703/01/0408/29/05
HOUSXHouston Deer Park #2 (#2)USTX48201103929.67-95.13703/01/0408/29/05
IKBA1Ike's BackboneUSAZ04025810434.34-111.68129803/29/0012/30/17
INGA1Indian GardensUSAZ04005810036.08-112.13116609/02/8905/13/13
ISLE1Isle Royale NPUSMI26083900047.46-88.1518211/17/9912/30/17
ISRO1Isle Royale NPUSMI26083900147.92-89.1521306/01/8812/29/99
JARB1Jarbidge WildernessUSNV32007900041.89-115.43186903/02/8812/30/17
JARBXJarbidge Wilderness (#2)USNV32007900041.89-115.43186906/02/0405/13/13
JARI1James River Face WildernessUSVA51163900037.63-79.5129006/03/0012/30/17
JEFF1Jefferson NFUSVA51163900137.62-79.4821909/03/9402/26/00
JOSH1Joshua Tree NPUSCA06071900234.07-116.39123502/23/0012/30/17
JOSHXJoshua Tree NP (#2)USCA06071900234.07-116.39123506/02/0305/13/13
JOTR1Joshua Tree NPUSCA06071900234.07-116.39122809/04/9112/29/99
KAIS1KaiserUSCA06019900037.22-119.15259801/26/0012/30/17
KALM1KalmiopsisUSOR41033001042.55-124.068003/11/0012/30/17
KPBO1Kenai Peninsula BoroughUSAK 60.01-151.71508/19/1512/30/17
LABE1Lava Beds NMUSCA06093000541.71-121.51146003/29/0012/30/17
LASU1Lake SugemaUSIA19177000640.69-91.9921005/08/0211/29/04
LASU2Lake SugemaUSIA 40.69-92.0122912/02/0412/30/17
LAVO1Lassen Volcanic NPUSCA06089300340.54-121.58173303/02/8812/30/17
LAVOXLassen Volcanic NP (#2)USCA06089300340.54-121.58173303/01/0305/13/13
LIGO1Linville GorgeUSNC37011000235.97-81.9396904/01/0012/30/17
LIVO1LivoniaUSIN18175900038.53-86.2628203/08/0112/31/10
LOND1LondonderryUSNH 42.86-71.3812401/03/1112/30/17
LOPE1Lone Peak WildernessUSUT49049900040.44-111.71176812/01/9308/29/01
LOST1LostwoodUSND38013000448.64-102.469612/15/9912/30/17
LTCC1Lake Tahoe Community CollegeUSCA 38.92-119.97193502/19/1412/30/17
LYBR1Lye Brook WildernessUSVT50003800143.15-73.13101509/04/9109/30/12
LYEB1Lye Brook WildernessUSVT50025800142.96-72.9188201/01/1212/30/17
LYND1LyndenUSWA53073002048.95-122.562810/16/9612/29/99
MACA1Mammoth Cave NPUSKY21061900037.13-86.1523509/04/9112/30/17
MACAXMammoth Cave NP (#2)USKY21061900037.13-86.1523503/01/0312/30/17
MAKA1Makah TribeUSWA 48.37-124.59 09/02/0610/29/10
MAKA2Makah Tribe Site #2USWA 48.3-124.6248011/01/1012/30/17
MALO1Mauna Loa Observatory #1USHI15001900019.54-155.58343912/02/9208/28/04
MALO2Mauna Loa Observatory #2USHI15001900119.54-155.58343912/02/9208/28/04
MALO3Mauna Loa Observatory #3USHI15001900319.54-155.58340003/06/9602/26/00
MALO4Mauna Loa Observatory #4USHI15001900419.54-155.58340003/02/9602/26/00
MAVI1Martha's VineyardUSMA25007000141.33-70.78312/01/0212/30/17
MEAD1MeadviewUSAZ04015900036.02-114.0790209/04/9112/30/17
MELA1Medicine LakeUSMT30091900048.49-104.4860612/15/9912/30/17
MELAXMedicine Lake (#2)USMT30091900048.49-104.4860609/03/0312/30/17
MEVE1Mesa Verde NPUSCO08083900037.2-108.49217203/02/8812/30/17
MEVEXMesa Verde NP (#2)USCO08083900037.2-108.49217206/02/0312/30/17
MING1MingoUSMO29207000136.97-90.1411106/03/0012/30/17
MKGO1M.K. GoddardUSPA42085900041.43-80.1538004/04/0112/31/10
MOHO1Mount HoodUSOR41005001045.29-121.78153103/15/0012/30/17
MOMO1Mohawk Mt.USCT09005000541.82-73.352209/13/0112/30/17
MONT1MontureUSMT30077900047.12-113.15128203/29/0012/30/17
MOOS1Moosehorn NWRUSME23029100445.13-67.277812/03/9412/30/17
MORA1Mount Rainier NPUSWA53053001446.76-122.1243903/02/8812/30/17
MOZI1Mount Zirkel WildernessUSCO08057900040.54-106.68324306/01/9412/30/17
NEBR1Nebraska NFUSNE31171900041.89-100.3488306/01/0212/30/17
NEYO1Is 52USNY36005011040.82-73.94508/01/0406/07/10
NOAB1North AbsarokaUSWY56029900244.74-109.38248301/26/0012/30/17
NOCA1North CascadesUSWA53073002248.73-121.0656907/30/9712/30/17
NOCH1Northern CheyenneUSMT30087076245.65-106.56128306/01/0212/30/17
NOGA1NogalesUSAZ 31.34-110.94117210/27/1512/30/17
OKEF1Okefenokee NWRUSGA13049900030.74-82.134809/04/9112/30/17
OLTO1Old TownUSME23019400344.93-68.655106/27/0105/29/06
OLYM1OlympicUSWA53009002048.01-122.9760007/12/0112/30/17
OLYMXOlympic (#2)USWA53009002048.01-122.9760009/03/0305/13/13
OMAH1OmahaUSNE31173900042.15-96.4343006/02/0308/04/08
ORPI1Organ PipeUSAZ04019000531.95-112.850412/01/0212/30/17
OWVL1Owens ValleyUSCA 37.36-118.33123406/27/1312/30/17
PACK1Pack Monadnock SummitUSNH 42.86-71.8869510/03/0712/30/17
PASA1PasaytenUSWA53047001248.39-119.93162711/02/0012/30/17
PEFO1Petrified Forest NPUSAZ04017011935.08-109.77176603/02/8812/30/17
PENO1PenobscotUSME 44.95-68.654501/11/0612/30/17
PETE1PetersburgUSAK02280900056.61-132.81007/02/0409/28/09
PHOE1PhoenixUSAZ04013999733.5-112.134204/19/0112/30/17
PHOE5Phoenix Colocated SamplerUSAZ 33.5-112.134201/01/0507/29/15
PHOE5Phoenix Colocated Sampler (#2)USAZ 33.5-112.134208/01/1512/30/17
PINN1Pinnacles NMUSCA06069000336.48-121.1630203/02/8812/30/17
PITT1LawrencevilleUSPA42003000840.47-79.9626803/01/0412/30/17
PMRF1Proctor Maple R. F.USVT50007000744.53-72.8740112/01/9312/30/17
PMRFXProctor Maple R. F. (#2)USVT50007000744.53-72.8740109/03/0312/30/17
PORE1Point Reyes National SeashoreUSCA06041000238.12-122.919703/02/8812/30/17
PRIS1Presque IsleUSME23003102046.7-68.0316603/08/0112/30/17
PUSO1Puget SoundUSWA53033008047.57-122.319803/02/9612/30/17
QUCI1Quaker CityUSOH39121900039.94-81.3436604/04/0112/30/17
QURE1Quabbin SummitUSMA25015400242.3-72.3331804/04/0112/29/15
QUREXQuabbin Summit (#2)USMA25015400242.3-72.3331809/03/0305/19/13
QUVA1Queen ValleyUSAZ04021800133.29-111.2966104/19/0112/29/15
RAFA1San RafaelUSCA06083900034.73-120.0195702/02/0012/30/17
REDW1Redwood NPUSCA06015000241.56-124.0824403/02/8812/30/17
RICR1Ripple CreekUSCO 40.09-107.31293403/02/0910/30/11
RMHQ1Rocky Mountain NP HQUSCO08069900040.36-105.56240803/02/8812/29/99
ROMA1Cape Romain NWRUSSC45019004632.94-79.66509/03/9412/30/17
ROMO1Rocky Mountain NPUSCO08069900140.28-105.55276009/01/9012/30/17
RUBI1RubidouxUSCA06065800134-117.4224809/03/0408/29/05
SAAN1San AndresUSNM35013900032.69-106.48132607/30/9702/26/00
SACR1Salt CreekUSNM35005900033.46-104.4107204/08/0012/30/17
SAFO1Sac and FoxUSKS20013900039.98-95.5729306/01/0206/29/11
SAFOXSac and Fox (#2)USKS20013900039.98-95.5729309/03/0306/29/11
SAGA1San GabrielUSCA06037903434.3-118.03179112/03/0112/30/17
SAGO1San Gorgonio WildernessUSCA06071901034.19-116.91172603/02/8812/30/17
SAGU1Saguaro NMUSAZ04019002132.17-110.7494106/01/8812/30/17
SALM1Salmon NFUSID16059000745.16-114.03278812/01/9311/05/00
SAMA1St. MarksUSFL12129000130.09-84.16808/16/0012/30/17
SAMAXSt. Marks (#2)USFL12129000130.09-84.16809/03/0412/30/17
SAPE1San Pedro ParksUSNM35039900036.01-106.84293508/16/0012/30/17
SAWE1Saguaro WestUSAZ04019900032.25-111.2271410/31/0112/30/17
SAWEXSaguaro West (#2)USAZ04019900032.25-111.2271403/01/0405/19/13
SAWT1Sawtooth NFUSID16037000244.17-114.93199012/01/9312/30/17
SCOV1ScovilleUSID16023000343.65-113.03150003/04/9202/26/00
SENE1SeneyUSMI26153900046.29-85.9521511/17/9912/30/17
SENEXSeney (#2)USMI26153900046.29-85.9521506/02/0305/13/13
SEQU1Sequoia NPUSCA06107100136.49-118.8351903/04/9212/30/17
SHEN1Shenandoah NPUSVA51113900038.52-78.43107903/02/8812/30/17
SHMI1Shamrock MineUSCO08067900037.3-107.48235108/01/0412/30/17
SHRO1Shining Rock WildernessUSNC37087003535.39-82.77161706/01/9412/30/17
SIAN1Sierra AnchaUSAZ04007810034.09-110.94160002/09/0012/03/17
SIKE1SikesUSLA22127900032.06-92.444503/02/0112/31/10
SIME1SimeonofUSAK02013000255.33-160.515709/13/0112/30/17
SIPS1Sipsey WildernessUSAL01079900034.34-87.3428603/04/9212/30/17
SNPA1Snoqualmie PassUSWA53037000447.42-121.43104906/02/9312/30/17
SOLA1South Lake TahoeUSCA06017000838.93-119.97190003/01/8912/29/99
SPOK1Spokane Res.USWA53063005147.9-117.8655207/12/0106/30/05
STAR1StarkeyUSOR41061001045.22-118.51125903/15/0012/30/17
STIL1StilwellUSOK40071901035.75-94.6730004/23/1012/30/17
STPE1Storm PeakUSCO08107900040.45-106.74322012/01/9312/29/99
SULA1Sula PeakUSMT30081900045.86-114189606/01/9412/30/17
SWAN1SwanquarterUSNC37095900035.45-76.21-406/10/0012/30/17
SWANXSwanquarter (#2)USNC37095900035.45-76.21-409/03/0412/30/17
SYCA1Sycamore CanyonUSAZ04005810335.14-111.97204609/04/9110/30/15
SYCA2Sycamore CanyonUSAZ 35.16-111.98204610/24/1512/30/17
TALL1TallgrassUSKS20017000138.43-96.5639009/02/0212/30/17
THBA1Thunder BasinUSWY56005012344.66-105.29119506/01/0212/30/17
THRO1Theodore RooseveltUSND38007000246.89-103.3885312/15/9912/30/17
THSI1Three Sisters WildernessUSOR41039007044.29-122.0488506/02/9312/30/17
TONT1Tonto NMUSAZ04007001033.65-111.1177503/02/8812/30/17
TRCR1Trapper CreekUSAK02170001162.32-150.3215509/13/0112/30/17
TRCRXTrapper Creek (#2)USAK02170001162.32-150.3215506/02/0406/24/13
TRIN1TrinityUSCA06105900040.79-122.8101410/18/0012/30/17
TUXE1TuxedniUSAK02122000959.99-152.671512/03/0101/12/15
ULBE1UL BendUSMT30027900047.58-108.7289101/26/0012/30/17
UPBU1Upper Buffalo WildernessUSAR05101900035.83-93.272312/04/9112/30/17
VIIS1Virgin Islands NPUSVI78020900018.34-64.85109/01/9011/27/17
VILA1Viking LakeUSIA19137000240.97-95.0537105/08/0212/30/17
VOYA1Voyageurs NP #1USMN27137900148.41-92.8342603/02/8812/29/99
VOYA2Voyageurs NP #2USMN27137900048.41-92.8342903/02/8812/30/17
WARI1Walker River Paiute TribeUSNV32021900038.95-118.81125006/02/0310/31/05
WASH1Washington D.C.USDC11001004238.88-77.031503/02/8806/08/15
WEMI1Weminuche WildernessUSCO08111900037.66-107.8275003/02/8812/30/17
WHIT1White MountainUSNM35027900033.47-105.53206412/03/0112/30/17
WHPA1White PassUSWA53041000746.62-121.39182702/16/0012/30/17
WHPE1Wheeler PeakUSNM35055900036.59-105.45336608/16/0012/30/17
WHRI1White River NFUSCO08097900039.15-106.82341406/02/9312/30/17
WICA1Wind CaveUSSD46033013243.56-103.48129612/15/9912/30/17
WICAXWind Cave (#2)USSD46033013243.56-103.48129609/03/0412/30/17
WIMO1Wichita MountainsUSOK40031900034.73-98.7150903/02/0112/30/17
WRIG1WrightwoodUSCA 34.38-117.69210610/01/0910/15/12
YELL1Yellowstone NP 1USWY56039900144.57-110.4244203/09/8812/29/99
YELL2Yellowstone NP 2USWY56039900044.57-110.4242503/02/8812/30/17
YOSE1Yosemite NPUSCA06043000337.71-119.71160303/02/8812/30/17
YOSEXYosemite NP (#2)USCA06043000337.71-119.71160308/01/1512/30/17
YOSEXYosemite NP (#2)USCA 37.71-119.71160311/02/1207/29/15
ZICA1Zion CanyonUSUT49053013037.2-113.15121512/01/0212/30/17
ZION1ZionUSUT49053900037.46-113.22154503/25/0008/22/04
CodeNameUnitsfromSourceCodeSourceUnits
ALfAluminum (Fine)ug/m^3 LC<--ALng/m^3 LC
ammNO3fAmmonium Nitrate (Fine)ug/m^3 LC<--AmmNO3_CIRAug/m^3 LC
ammSO4fAmmonium Sulfate (Fine)ug/m^3 LC<--AmmSO4_CIRAug/m^3 LC
ASfArsenic (Fine)ug/m^3 LC<--ASng/m^3 LC
BRfBromine (Fine)ug/m^3 LC<--BRng/m^3 LC
CAfCalcium (Fine)ug/m^3 LC<--CAng/m^3 LC
CLfChlorine (Fine)ug/m^3 LC<--CLng/m^3 LC
CHLfChloride (Fine)ug/m^3 LC<--CLDng/m^3 LC
CM_calculatedMass, PM2.5 - PM10 (Coarse)ug/m^3 LC<--CM_CIRAug/m^3 LC
CRfChromium (Fine)ug/m^3 LC<--CRng/m^3 LC
CUfCopper (Fine)ug/m^3 LC<--CUng/m^3 LC
ECfCarbon, Elemental Total (Fine)ug/m^3 LC<--EC_CIRAug/m^3 LC
EC1fCarbon, Elemental Fraction 1 (Fine)ug/m^3 LC<--EC1ng/m^3 LC
EC2fCarbon, Elemental Fraction 2 (Fine)ug/m^3 LC<--EC2ng/m^3 LC
EC3fCarbon, Elemental Fraction 3 (Fine)ug/m^3 LC<--EC3ng/m^3 LC
ECfCarbon, Elemental Total (Fine)ug/m^3 LC<--ECfug/m^3 LC
SampDurSampling Durationminutes<--ETminutes
fAbsFilter Absorption CoefficientMm-1 LC<--fabs10^-8/m LC
FEfIron (Fine)ug/m^3 LC<--FEng/m^3 LC
FlowRateFlow Ratelpm<--Flowlpm
KfPotassium (Fine)ug/m^3 LC<--Kng/m^3 LC
MGfMagnesium (Fine)ug/m^3 LC<--MGng/m^3 LC
MNfManganese (Fine)ug/m^3 LC<--MNng/m^3 LC
NAfSodium (Fine)ug/m^3 LC<--NAng/m^3 LC
NIfNickel (Fine)ug/m^3 LC<--NIng/m^3 LC
N2fNitrite (Fine)ug/m^3 LC<--NO2ng/m^3 LC
NO3fNitrate (Fine)ug/m^3 LC<--NO3ng/m^3 LC
OCfCarbon, Organic Total (Fine)ug/m^3 LC<--OC_CIRAug/m^3 LC
OC1fCarbon, Organic Fraction 1 (Fine)ug/m^3 LC<--OC1ng/m^3 LC
OC2fCarbon, Organic Fraction 2 (Fine)ug/m^3 LC<--OC2ng/m^3 LC
OC3fCarbon, Organic Fraction 3 (Fine)ug/m^3 LC<--OC3ng/m^3 LC
OC4fCarbon, Organic Fraction 4 (Fine)ug/m^3 LC<--OC4ng/m^3 LC
OCfCarbon, Organic Total (Fine)ug/m^3 LC<--OCfug/m^3 LC
OMCfCarbon, Organic Mass (Fine) (1.8*OC)ug/m^3 LC<--OMC_CIRAug/m^3 LC
OPfCarbon, Organic Pyrolized (Fine), by Reflectanceug/m^3 LC<--OPTRng/m^3 LC
OPTfCarbon, Organic Pyrolized (Fine), by Transmittanceug/m^3 LC<--OPTTng/m^3 LC
PfPhosphorus (Fine)ug/m^3 LC<--Png/m^3 LC
PBfLead (Fine)ug/m^3 LC<--PBng/m^3 LC
MTMass, PM10 (Total)ug/m^3 LC<--PM10ng/m^3 LC
MFMass, PM2.5 (Fine)ug/m^3 LC<--PM2.5ng/m^3 LC
RBfRubidium (Fine)ug/m^3 LC<--RBng/m^3 LC
RCFMMass, PM2.5 Reconstructed (Fine)ug/m^3 LC<--RCFM_CIRAug/m^3 LC
RCTMMass, PM10 Reconstructed (Total)ug/m^3 LC<--RCTM_CIRAug/m^3 LC
SfSulfur (Fine)ug/m^3 LC<--Sng/m^3 LC
SEfSelenium (Fine)ug/m^3 LC<--SEng/m^3 LC
SeaSaltfSea Salt (Fine)ug/m^3 LC<--SeaSalt_CIRAug/m^3 LC
SIfSilicon (Fine)ug/m^3 LC<--SIng/m^3 LC
SO4fSulfate (Fine)ug/m^3 LC<--SO4ng/m^3 LC
SOILfSoil (Fine)ug/m^3 LC<--SOIL_CIRAug/m^3 LC
SRfStrontium (Fine)ug/m^3 LC<--SRng/m^3 LC
TCfCarbon, Total (Fine)ug/m^3 LC<--TCng/m^3 LC
TIfTitanium (Fine)ug/m^3 LC<--TIng/m^3 LC
VfVanadium (Fine)ug/m^3 LC<--Vng/m^3 LC
ZNfZinc (Fine)ug/m^3 LC<--ZNng/m^3 LC
ZRfZirconium (Fine)ug/m^3 LC<--ZRng/m^3 LC
FlagCodeDescriptionCategorySourceColumn
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