HU-Beltsville

Site ID: 24-033-0030 · 39.0553°N, 76.8783°W

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Monitors

ParameterPOCFirst YearLast Sample
Carbon monoxide120072025-09-30
Carbon disulfide120062010-12-28
Sulfur dioxide120062025-09-30
Sulfur dioxide220102025-09-30
Reactive oxides of nitrogen (NOy)120082017-12-31
Nitric oxide (NO)120052017-12-31
Nitric oxide (NO)220122019-10-31
Nitrogen dioxide (NO2)120052019-10-31
Nitrogen dioxide (NO2)420192025-09-30
Oxides of nitrogen (NOx)120052019-10-31
NOy - NO120082017-12-31
Sum of PAMS target compounds120062024-08-31
Sum of PAMS target compounds220052025-03-26
Total NMOC (non-methane organic compound)120062024-08-31
Total NMOC (non-methane organic compound)220052025-03-26
n-Dodecane120062024-08-31
n-Dodecane220052025-03-26
Ethane120062024-08-31
Ethane220052025-03-26
Ethylene120062024-08-31
Ethylene220052025-03-26
Propane120062024-08-31
Propane220052025-03-26
Propylene120062024-08-31
Propylene220052025-03-26
Propylene3
Acetylene120062024-08-31
Acetylene220052025-03-26
Freon 113120052025-03-26
Freon 114120052025-03-26
Ethyl acetate120062010-12-28
n-Butane120062024-08-31
n-Butane220052025-03-26
Isobutane120062024-08-31
Isobutane220052025-03-26
trans-2-Butene120062024-08-31
trans-2-Butene220052025-03-26
cis-2-Butene120062024-08-31
cis-2-Butene220052025-03-26
1,3-Butadiene120052025-03-26
1,3-Butadiene220232024-08-31
n-Pentane120062024-08-31
n-Pentane220052025-03-26
Isopentane120062024-08-31
Isopentane220052025-03-26
1-Pentene120062024-08-31
1-Pentene220052025-03-26
trans-2-Pentene120062024-08-31
trans-2-Pentene220052025-03-26
cis-2-Pentene120062024-08-31
cis-2-Pentene220052025-03-26
3-Methylpentane120062024-08-31
3-Methylpentane220052025-03-26
n-Hexane120062024-08-31
n-Hexane220052025-03-26
n-Hexane320062025-03-26
n-Heptane120062024-08-31
n-Heptane220052025-03-26
n-Heptane320062025-03-26
n-Octane120062024-08-31
n-Octane220052025-03-26
n-Nonane120062024-08-31
n-Nonane220052025-03-26
n-Decane120062024-08-31
n-Decane220052025-03-26
Cyclopentane120062024-08-31
Cyclopentane220052025-03-26
Isoprene120062024-08-31
Isoprene220052025-03-26
2,2-Dimethylbutane120062024-08-31
2,2-Dimethylbutane220052025-03-26
1-Hexene120062024-08-31
1-Hexene220052025-03-26
2,4-Dimethylpentane120062024-08-31
2,4-Dimethylpentane220052025-03-26
Cyclohexane120062024-08-31
Cyclohexane220052025-03-26
Cyclohexane320062025-03-26
3-Methylhexane120062024-08-31
3-Methylhexane220052025-03-26
2,2,4-Trimethylpentane120062024-08-31
2,2,4-Trimethylpentane220052025-03-26
2,3,4-Trimethylpentane120062024-08-31
2,3,4-Trimethylpentane220052025-03-26
3-Methylheptane120062024-08-31
3-Methylheptane220052025-03-26
alpha.-Pinene120232024-08-31
alpha.-Pinene220182025-03-26
beta.-Pinene120232024-08-31
beta.-Pinene220182025-03-26
Methylcyclohexane120062024-08-31
Methylcyclohexane220052025-03-26
Methylcyclopentane120062024-08-31
Methylcyclopentane220052025-03-26
2-Methylhexane120062024-08-31
2-Methylhexane220052025-03-26
1-Butene120062024-08-31
1-Butene220052025-03-26
2,3-Dimethylbutane120062024-08-31
2,3-Dimethylbutane220052025-03-26
2-Methylpentane120062024-08-31
2-Methylpentane220052025-03-26
2,3-Dimethylpentane120062024-08-31
2,3-Dimethylpentane220052025-03-26
Ethyl alcohol1
2-Propanol120062010-12-28
Methyl tert-butyl ether120062025-03-26
Vinyl acetate1
Acrolein - Unverified120072025-03-26
Acetone120062025-03-26
Methyl ethyl ketone120062010-12-28
Methyl Butyl Ketone120062010-12-28
Methyl isobutyl ketone120062010-12-28
Acetonitrile120092010-12-28
Acrylonitrile120052010-12-28
Chloromethane120052025-03-26
Dichloromethane120052025-03-26
Chloroform120052025-03-26
Carbon tetrachloride120052025-03-26
Bromoform120062010-12-28
Trichlorofluoromethane120052025-03-26
Chloroethane120052010-12-28
1,1-Dichloroethane120052010-12-28
Methyl chloroform120052025-03-26
Ethylene dichloride120052025-03-26
Tetrachloroethylene120052025-03-26
1,1,2,2-Tetrachloroethane120052025-03-26
Bromomethane120052010-12-28
1,1,2-Trichloroethane120052010-12-28
Dichlorodifluoromethane120052025-03-26
Trichloroethylene120052025-03-26
1,1-Dichloroethylene120052010-12-28
Bromodichloromethane120062010-12-28
1,2-Dichloropropane120052025-03-26
trans-1,3-Dichloropropene120052025-03-26
cis-1,3-Dichloropropene120052025-03-26
Dibromochloromethane120062010-12-28
trans-1,2-Dichloroethylene120062010-12-28
cis-1,2-Dichloroethene120052010-12-28
Ethylene dibromide120052025-03-26
Hexachlorobutadiene120052010-12-28
Vinyl chloride120052025-03-26
n-Undecane120062024-08-31
n-Undecane220052025-03-26
2-Methylheptane120062024-08-31
2-Methylheptane220052025-03-26
Ozone120052025-10-31
m/p Xylene120062024-08-31
m/p Xylene220052025-03-26
m/p Xylene320052025-03-26
Benzene120062024-08-31
Benzene220052025-03-26
Benzene320052025-03-26
Toluene120062024-08-31
Toluene220052025-03-26
Toluene320052025-03-26
Ethylbenzene120062024-08-31
Ethylbenzene220052025-03-26
Ethylbenzene320052025-03-26
o-Xylene120062024-08-31
o-Xylene220052025-03-26
o-Xylene320052025-03-26
1,3,5-Trimethylbenzene120062024-08-31
1,3,5-Trimethylbenzene220052025-03-26
1,3,5-Trimethylbenzene320052025-03-26
1,2,4-Trimethylbenzene120062024-08-31
1,2,4-Trimethylbenzene220052025-03-26
1,2,4-Trimethylbenzene320052025-03-26
n-Propylbenzene120062024-08-31
n-Propylbenzene220052025-03-26
Isopropylbenzene120062024-08-31
Isopropylbenzene220052025-03-26
o-Ethyltoluene120062024-08-31
o-Ethyltoluene220052025-03-26
m-Ethyltoluene120062024-08-31
m-Ethyltoluene220052025-03-26
p-Ethyltoluene120062024-08-31
p-Ethyltoluene220052025-03-26
p-Ethyltoluene320052025-03-26
m-Diethylbenzene120062024-08-31
m-Diethylbenzene220052025-03-26
p-Diethylbenzene120062024-08-31
p-Diethylbenzene220052025-03-26
Styrene120062024-08-31
Styrene220052025-03-26
Styrene320052025-03-26
1,2,3-Trimethylbenzene120062024-08-31
1,2,3-Trimethylbenzene220052025-03-26
Chlorobenzene120052025-03-26
1,2-Dichlorobenzene120052010-12-28
1,3-Dichlorobenzene120052010-12-28
1,4-Dichlorobenzene120052025-03-26
Benzyl chloride120062010-12-28
1,2,4-Trichlorobenzene120052010-12-28
1,4-Dioxane1
Furan, tetrahydro-120062025-03-26
Wind Speed - Scalar120052005-12-31
Wind Direction - Scalar120052005-12-31
Wind Speed - Resultant120062025-06-30
Wind Direction - Resultant120062025-06-30
Outdoor Temperature120052025-06-30
Relative Humidity 120052025-06-30
Light Absorption Coeffiecient520202025-05-31
Solar radiation120052025-06-30
Barometric pressure120072025-06-30
Rain/melt precipitation120072025-06-30
Sample Flow Rate- CV120042006-09-29
Sample Flow Rate- CV2
Sample Flow Rate- CV5
Sample Volume120042006-09-29
Sample Volume2
Sample Volume5
Ambient Min Temperature120042006-09-29
Ambient Min Temperature2
Ambient Min Temperature520042015-11-17
Ambient Max Temperature120042006-09-29
Ambient Max Temperature2
Ambient Max Temperature520042015-11-17
Average Ambient Temperature120042015-09-30
Average Ambient Temperature220102015-09-27
Average Ambient Temperature520042025-05-31
Sample Min Baro Pressure120042006-09-29
Sample Min Baro Pressure2
Sample Min Baro Pressure520042015-11-17
Sample Max Baro Pressure120042006-09-29
Sample Max Baro Pressure2
Sample Max Baro Pressure520042015-11-17
Average Ambient Pressure120042015-09-30
Average Ambient Pressure220102015-09-27
Average Ambient Pressure520042025-05-31
Elapsed Sample Time120042006-09-29
Elapsed Sample Time2
Sample Flow Rate CV - Teflon Filter520162025-05-31
Sample Flow Rate CV - Nylon Filter520162025-05-31
Sample Flow Rate CV - Quartz Filter520162025-05-31
Sample Volume - Teflon Filter520162025-05-31
Sample Volume - Nylon Filter520162025-05-31
Sample Volume - Quartz Filter520162025-05-31
Average Ambient Temperature for URG3000N520162025-05-31
Average Ambient Pressure for URG3000N520162025-05-31
PM10 Total 0-10um STP120102025-06-30
PM10 Total 0-10um STP220102016-05-12
Black carbon PM2.5 STP120172019-11-15
UV Carbon PM2.5 STP120172019-11-15
Lead PM10 LC FRM/FEM120122017-12-27
Lead PM10 LC FRM/FEM220122012-09-06
PM10-2.5 - Local Conditions120102025-06-30
PM10-2.5 - Local Conditions220102016-05-12
Particle Number, Total Count120172019-12-31
PM2.5 - Local Conditions120042025-06-30
PM2.5 - Local Conditions220102025-06-30
PM2.5 - Local Conditions320082025-09-30
Antimony PM2.5 LC520042025-05-31
Arsenic PM2.5 LC520042025-05-31
Aluminum PM2.5 LC520042025-05-31
Barium PM2.5 LC520042025-05-31
Bromine PM2.5 LC520042025-05-31
Cadmium PM2.5 LC520042025-05-31
Calcium PM2.5 LC520042025-05-31
Chromium PM2.5 LC520042025-05-31
Cobalt PM2.5 LC520042025-05-31
Copper PM2.5 LC520042025-05-31
Chlorine PM2.5 LC520042025-05-31
Cerium PM2.5 LC520042025-05-31
Cesium PM2.5 LC520042025-05-31
Europium PM2.5 LC520042009-02-18
Gallium PM2.5 LC520042009-02-18
Iron PM2.5 LC520042025-05-31
Hafnium PM2.5 LC520042009-02-18
Lead PM2.5 LC520042025-05-31
Indium PM2.5 LC520042025-05-31
Manganese PM2.5 LC520042025-05-31
Iridium PM2.5 LC520042009-02-18
Molybdenum PM2.5 LC520042009-02-18
Nickel PM2.5 LC520042025-05-31
Magnesium PM2.5 LC520042025-05-31
Mercury PM2.5 LC520042009-02-18
Gold PM2.5 LC520042009-02-18
Lanthanum PM2.5 LC520042009-02-18
Niobium PM2.5 LC520042009-02-18
Phosphorus PM2.5 LC520042025-05-31
Selenium PM2.5 LC520042025-05-31
Tin PM2.5 LC520042025-05-31
Titanium PM2.5 LC520042025-05-31
Samarium PM2.5 LC520042009-02-18
Scandium PM2.5 LC520042009-02-18
Vanadium PM2.5 LC520042025-05-31
Silicon PM2.5 LC520042025-05-31
Silver PM2.5 LC520042025-05-31
Zinc PM2.5 LC520042025-05-31
Strontium PM2.5 LC520042025-05-31
Sulfur PM2.5 LC520042025-05-31
Tantalum PM2.5 LC520042009-02-18
Terbium PM2.5 LC520042009-02-18
Rubidium PM2.5 LC520042025-05-31
Potassium PM2.5 LC520042025-05-31
Yttrium PM2.5 LC520042009-02-18
Sodium PM2.5 LC520042025-05-31
Zirconium PM2.5 LC520042025-05-31
Tungsten PM2.5 LC520042009-02-18
Chloride PM2.5 LC520172025-05-31
Ammonium Ion PM2.5 LC520042025-05-31
Sodium Ion Pm2.5 LC520042025-05-31
Potassium Ion PM2.5 LC520042025-05-31
OC CSN Unadjusted PM2.5 LC TOT520042009-04-13
Total Nitrate PM2.5 LC520042025-05-31
EC CSN PM2.5 LC TOT520042009-04-13
Black Carbon PM2.5 at 880 nm120192025-06-30
UV Carbon PM2.5 at 370 nm120192025-06-30
OC PM2.5 LC TOR520152025-05-31
EC PM2.5 LC TOR520152025-05-31
OC1 PM2.5 LC520152025-05-31
OC2 PM2.5 LC520152025-05-31
OC3 PM2.5 LC520152025-05-31
OC4 PM2.5 LC520152025-05-31
OP PM2.5 LC TOR520152025-05-31
EC1 PM2.5 LC520152025-05-31
EC2 PM2.5 LC520152025-05-31
EC3 PM2.5 LC520152025-05-31
OC1 CSN Unadjusted PM2.5 LC TOT520042009-04-13
OC2 CSN Unadjusted PM2.5 LC TOT520042009-04-13
OC3 CSN Unadjusted PM2.5 LC TOT520042009-04-13
OC4 CSN Unadjusted PM2.5 LC TOT520042009-04-13
OP CSN PM2.5 LC TOT520042009-04-13
Soil PM2.5 LC520182025-05-31
OC CSN_Rev Unadjusted PM2.5 LC TOT520092025-05-31
EC CSN_Rev Unadjusted PM2.5 LC TOT520092025-05-31
OC CSN_Rev Unadjusted PM2.5 LC TOR520092025-05-31
OC1 CSN_Rev Unadjusted PM2.5 LC520092025-05-31
OC2 CSN_Rev Unadjusted PM2.5 LC520092025-05-31
OC3 CSN_Rev Unadjusted PM2.5 LC520092025-05-31
OC4 CSN_Rev Unadjusted PM2.5 LC520092025-05-31
OP CSN_Rev Unadjusted PM2.5 LC TOR520092025-05-31
OP PM2.5 LC TOT520152025-05-31
EC CSN_Rev Unadjusted PM2.5 LC TOR520092025-05-31
EC PM2.5 LC TOT520152025-05-31
OC PM2.5 LC TOT520152025-05-31
EC1 CSN_Rev Unadjusted PM2.5 LC520092025-05-31
EC2 CSN_Rev Unadjusted PM2.5 LC520092025-05-31
EC3 CSN_Rev Unadjusted PM2.5 LC520092025-05-31
OP CSN_Rev Unadjusted PM2.5 LC TOT520092025-05-31
Reconstructed Mass PM2.5 LC520182025-05-31
Sulfate PM2.5 LC520042025-05-31
PM2.5 Raw Data320052008-06-30
Acceptable PM2.5 AQI & Speciation Mass520042014-09-29