---
instrument_id: '392'
data_file_original_name: 'EPA2261A_NOx.csv'
skip_headers: '1'
charts: ''
headers:
    - 'Local_Time_PST'
    - 'Experimental_Time_min'
    - 'NO_UNCOR_ppb'
    - 'NO2_UNCOR_ppb'
    - 'NOx_UNCOR_ppb'
dataset_id: '2801'
experiment_link: 'https://icarus.ucdavis.edu/chambers/539/experiments/254'
experiment_set_link: 'https://icarus.ucdavis.edu/chambers/539/experimentSets/189'
chamber_link: 'https://icarus.ucdavis.edu/chambers/539'
dataset_created_at: '2021-08-26 12:20:13'
dataset_updated_at: '2021-08-26 12:20:13'
instrument_link: 'https://icarus.ucdavis.edu/chambers/539/instruments/392'
instrument:
    id: '392'
    short_name: 'NOx Box'
    full_name: 'Chemiluminescence NO-NO2-NOx Analyzer'
    manufacturer: 'Thermo Environmental'
    model: 'Model 42'
    year: '1989'
    data_recording_software: 'Labview Program'
    data_analysis_software: 'Custom Excel Program'
    raw_data_time_resolution: '1s'
    analysis_data_averaging: '60s'
    detection_limit: '0.1 ppb'
    quantification_limit: ''
    sensitivity_to_temperature: 'N/A'
    sensitivity_to_relative_humidity: 'N/A'
    sampling_method: 'Direct gas sampling'
    sample_preparation_method: 'Filter particle contents before sampling; One of the measuring streams is flowing through catalyst system to convert NOx to NO'
    sample_residence_time_in_seconds: ''
    length_of_tubing_in_cm: ''
    flow_rate: ''
    tubing_material: 'FEP Teflon'
    chemical_identification_method: 'NO concentration is determined by Chemiluminescence method; NOx concentration is determined by the same method from another sample stream which flows through the catalyst box, assuming the catalyst can convert 100% of the NO2 into NO.'
    data_analysis_method: 'The raw signal is logged by the custom Labview program every second and is averaged to 1 min of the time range. Finally the data is pulled out by a custom Excel script.'
    quantification_method: '[NO2] = [NOx] - [NO].'
    calibration_method: 'Standard NO and NOx gas with known concentrations was introduced into the instrument and calibration factor is calculated based on the comparison. THIS IS DONE EVERYTIME BEFORE AN EXPERIMENT.'
    calibration_drift_estimate: 'No estimate'
    calibration_schedule: 'As Needed'
    uncertainty_estimation_method: 'N/A'
    known_interferences: 'N/A'
    link_to_supplemental_information: 'N/A'
    additional_notes: 'N/A'
    organization_id: '547'
    created_at: '2020-02-25T10:01:39.000000Z'
    updated_at: '2020-03-27T09:37:55.000000Z'
    column_descriptors: '(b) Experimental_Time = relative time, t=0 is defined as the start of the reaction (dark) or light given time (BL/Arc).'
    sampling_protocol: 'Online'
    skip_headers: '1'
    tubing_inner_diameter: '1/4'''' OD; 0.152'''' ID'
    what_is_measured: 'NOx Concentrations'
    measurement_uncertainty: '(a) Local_Time (N/A); (b) Experimental_Time (N/A); (c)NO_Concentration (+/- ?%); (d) NO2_Concentration (+/- ?%); (e) NOx_Concentration (+/- ?%)'
    measurement_units: '(a) Local_Time (N/A); (b) Experimental_Time (N/A); (c)NO_Concentration (ppb); (d) NO2_Concentration (ppb); (e) NOx_Concentration (ppb)'

---
Local_Time_PST,Experimental_Time_min,NO_UNCOR_ppb,NO2_UNCOR_ppb,NOx_UNCOR_ppb
10/10/2016 7:39:00 AM,-97.9999999946449,22.485351,14.062501,36.547852
10/10/2016 7:40:00 AM,-96.9999999913853,22.835286,13.525391,36.360677
10/10/2016 7:54:00 AM,-82.9999999981374,20.076497,13.305664,33.382161
10/10/2016 7:55:00 AM,-81.9999999948777,20.003255,13.44401,33.447265
10/10/2016 8:09:00 AM,-67.9999999911524,20.328776,13.126628,33.455404
10/10/2016 8:10:00 AM,-66.9999999983702,20.222981,13.378907,33.601888
10/10/2016 8:24:00 AM,-53.0000000051223,20.231119,12.980144,33.211263
10/10/2016 8:25:00 AM,-51.9999999913853,20.426432,13.045248,33.47168
10/10/2016 8:39:00 AM,-37.9999999981374,20.735677,13.102213,33.83789
10/10/2016 8:40:00 AM,-36.9999999948777,20.678711,13.094075,33.772786
10/10/2016 8:54:00 AM,-22.9999999911524,21.606445,12.906901,34.513346
10/10/2016 8:55:00 AM,-21.9999999983702,21.411133,12.858072,34.269205
10/10/2016 9:09:00 AM,-7.9999999946449,21.313477,12.882486,34.195963
10/10/2016 9:10:00 AM,-6.99999999138527,21.419271,12.955729,34.375
10/10/2016 9:24:00 AM,7.00000000186265,16.349284,16.121419,32.470703
10/10/2016 9:25:00 AM,8.00000000512227,15.087891,17.154947,32.242838
10/10/2016 9:39:00 AM,22.0000000088476,4.654948,24.007161,28.662109
10/10/2016 9:40:00 AM,23.0000000016298,4.264323,24.536133,28.800456
10/10/2016 9:54:00 AM,37.0000000053551,2.294922,24.039713,26.334635
10/10/2016 9:55:00 AM,38.0000000086147,2.50651,24.072266,26.578776
10/10/2016 10:09:00 AM,52.0000000018626,1.635742,22.875977,24.511719
10/10/2016 10:10:00 AM,53.0000000051223,1.529948,23.339844,24.869792
10/10/2016 10:24:00 AM,67.0000000088476,1.700846,22.623698,24.324544
10/10/2016 10:25:00 AM,68.0000000016298,1.057942,23.11198,24.169922
10/10/2016 10:39:00 AM,82.0000000053551,0.805664,22.517904,23.323568
10/10/2016 10:40:00 AM,83.0000000086147,0.935872,22.900391,23.836263
10/10/2016 10:54:00 AM,97.0000000018626,0.260417,22.69694,22.957357
10/10/2016 10:55:00 AM,98.0000000051223,0.952148,22.998047,23.950195
10/10/2016 11:09:00 AM,112.000000008848,0.594075,21.435547,22.029622
10/10/2016 11:10:00 AM,113.00000000163,0.138346,22.298177,22.436523
10/10/2016 11:24:00 AM,127.000000005355,0.219726,22.200521,22.420247
10/10/2016 11:25:00 AM,128.000000008615,0.325521,22.688802,23.014323
10/10/2016 11:39:00 AM,142.000000001863,0.260417,22.298177,22.558594
10/10/2016 11:40:00 AM,143.000000005122,0.390625,22.753906,23.144531
10/10/2016 11:54:00 AM,157.000000008848,0.431315,21.923828,22.355143
10/10/2016 11:55:00 AM,158.00000000163,0.252279,22.558593,22.810872
10/10/2016 12:09:00 PM,172.000000005355,0.276693,21.004231,21.280924
10/10/2016 12:10:00 PM,173.000000008615,0.349935,21.744791,22.094726
10/10/2016 12:24:00 PM,187.000000001863,0.284831,21.516927,21.801758
10/10/2016 12:25:00 PM,188.000000005122,0.073242,22.216797,22.290039
10/10/2016 12:39:00 PM,202.000000008848,0.154622,21.728516,21.883138
10/10/2016 12:40:00 PM,203.00000000163,0.073242,22.192383,22.265625
10/10/2016 12:54:00 PM,217.000000005355,0.12207,21.557617,21.679687
10/10/2016 12:55:00 PM,218.000000008615,0.236003,21.809895,22.045898
10/10/2016 1:09:00 PM,232.000000001863,0.358073,20.336914,20.694987
10/10/2016 1:10:00 PM,233.000000005122,0.211588,21.118165,21.329753
10/10/2016 1:24:00 PM,247.000000008848,-0.097656,20.890299,20.792643
10/10/2016 1:25:00 PM,248.00000000163,0.317383,21.525065,21.842448
10/10/2016 1:39:00 PM,262.000000005355,0.016276,21.17513,21.191406
10/10/2016 1:40:00 PM,263.000000008615,0.073242,21.573893,21.647135
10/10/2016 1:54:00 PM,277.000000001863,0.20345,21.020508,21.223958
10/10/2016 1:55:00 PM,278.000000005122,0.276693,21.590169,21.866862
10/10/2016 2:09:00 PM,292.000000008848,0.301107,20.100911,20.402018
10/10/2016 2:10:00 PM,293.00000000163,0.219726,20.776368,20.996094
10/10/2016 2:24:00 PM,306.999999994878,0,20.670573,20.670573
10/10/2016 2:25:00 PM,308.000000008615,0.398763,21.183268,21.582031
10/10/2016 2:39:00 PM,322.000000001863,0.472005,20.914714,21.386719
10/10/2016 2:40:00 PM,323.000000005122,0.20345,21.256511,21.459961
10/10/2016 2:54:00 PM,337.000000008848,0.227864,20.857748,21.085612
10/10/2016 2:55:00 PM,338.00000000163,0.097656,21.077474,21.17513
10/10/2016 3:09:00 PM,352.000000005355,0.179036,19.466146,19.645182
10/10/2016 3:10:00 PM,353.000000008615,0.472005,20.296224,20.768229
10/10/2016 3:24:00 PM,367.000000001863,0.333659,20.076497,20.410156
10/10/2016 3:25:00 PM,368.000000005122,0.284831,20.727539,21.01237
10/10/2016 3:39:00 PM,382.000000008848,0.463867,20.369466,20.833333
10/10/2016 3:40:00 PM,383.00000000163,-0.073242,20.694987,20.621745
10/10/2016 3:54:00 PM,397.000000005355,0.146484,20.369466,20.51595
10/10/2016 3:55:00 PM,398.000000008615,0.341797,20.760091,21.101888
10/10/2016 4:09:00 PM,412.000000001863,0.276693,19.327799,19.604492
10/10/2016 4:10:00 PM,413.000000005122,0.227864,19.864909,20.092773
10/10/2016 4:24:00 PM,427.000000008848,0.170898,12.329102,12.5
10/10/2016 4:25:00 PM,428.00000000163,0.048828,9.855143,9.903971
10/10/2016 4:39:00 PM,442.000000005355,-0.04069,5.664063,5.623373
10/10/2016 4:40:00 PM,443.000000008615,0,5.151367,5.151367
