---
instrument_id: '392'
data_file_original_name: 'EPA2018B_NOx.csv'
skip_headers: '1'
charts: ''
headers:
    - 'Local_Time_PST'
    - 'Experimental_Time_min'
    - 'NO_UNCOR_ppb'
    - 'NO2_UNCOR_ppb'
    - 'NOx_UNCOR_ppb'
dataset_id: '3089'
experiment_link: 'https://icarus.ucdavis.edu/chambers/539/experiments/443'
experiment_set_link: 'https://icarus.ucdavis.edu/chambers/539/experimentSets/151'
chamber_link: 'https://icarus.ucdavis.edu/chambers/539'
dataset_created_at: '2021-08-26 16:24:33'
dataset_updated_at: '2021-08-26 16:24:33'
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
2/2/2015 7:14:00 AM,-164.000000000233,-0.170898,0.349934,0.179036
2/2/2015 7:15:00 AM,-162.999999996973,0,0.211588,0.211588
2/2/2015 7:29:00 AM,-149.000000003725,-0.227865,0.382487,0.154622
2/2/2015 7:30:00 AM,-148.000000000466,-0.12207,0.390625,0.268555
2/2/2015 8:44:00 AM,-74.0000000002328,0.16276,0.130209,0.292969
2/2/2015 8:45:00 AM,-72.9999999969732,0.187174,0.105795,0.292969
2/2/2015 9:14:00 AM,-43.9999999967404,0.04069,0.341797,0.382487
2/2/2015 9:15:00 AM,-43.0000000039581,0.236002,0.162761,0.398763
2/2/2015 9:29:00 AM,-29.0000000002328,-0.113932,0.512695,0.398763
2/2/2015 9:30:00 AM,-27.9999999969732,-0.056966,0.455729,0.398763
2/2/2015 9:44:00 AM,-14.0000000037253,-0.146484,0.553385,0.406901
2/2/2015 9:45:00 AM,-13.0000000004657,0.154622,0.333659,0.488281
2/2/2015 10:14:00 AM,15.9999999997672,0.211588,0.309245,0.520833
2/2/2015 10:15:00 AM,17.0000000030268,0.008138,0.431315,0.439453
2/2/2015 10:29:00 AM,30.9999999962747,-0.292969,0.78125,0.488281
2/2/2015 10:30:00 AM,31.9999999995343,0.008138,0.504557,0.512695
2/2/2015 10:44:00 AM,46.0000000032596,-0.130208,0.651041,0.520833
2/2/2015 10:45:00 AM,46.9999999960419,-0.16276,0.667317,0.504557
2/2/2015 11:14:00 AM,75.9999999962747,-0.073242,0.642903,0.569661
2/2/2015 11:15:00 AM,76.9999999995343,-0.211589,0.748698,0.537109
2/2/2015 11:29:00 AM,91.0000000032596,-0.130208,0.732421,0.602213
2/2/2015 11:30:00 AM,91.9999999960419,0.04069,0.651041,0.691731
2/2/2015 11:44:00 AM,105.999999999767,0,0.683593,0.683593
2/2/2015 11:45:00 AM,107.000000003027,-0.260417,0.887044,0.626627
2/2/2015 12:14:00 PM,136.00000000326,-0.236003,0.813802,0.577799
2/2/2015 12:15:00 PM,136.999999996042,-0.12429,0.772372,0.648082
2/2/2015 12:29:00 PM,150.999999999767,-0.04069,0.813802,0.773112
2/2/2015 12:30:00 PM,152.000000003027,-0.089518,0.773111,0.683593
2/2/2015 12:44:00 PM,165.999999996275,-0.358073,1.033528,0.675455
2/2/2015 12:45:00 PM,166.999999999534,-0.08138,0.870768,0.789388
2/2/2015 1:14:00 PM,195.999999999767,-0.146484,0.952148,0.805664
2/2/2015 1:15:00 PM,197.000000003027,-0.317383,1.074219,0.756836
2/2/2015 1:29:00 PM,210.999999996275,0.008138,0.94401,0.952148
2/2/2015 1:30:00 PM,211.999999999534,-0.130208,1.074218,0.94401
2/2/2015 1:44:00 PM,226.00000000326,-0.227865,1.098633,0.870768
2/2/2015 1:45:00 PM,226.999999996042,-0.056966,0.870768,0.813802
2/2/2015 2:14:00 PM,255.999999996275,-0.276693,1.131185,0.854492
2/2/2015 2:15:00 PM,256.999999999534,-0.268555,1.057943,0.789388
2/2/2015 2:29:00 PM,271.00000000326,-0.236003,1.131185,0.895182
2/2/2015 2:30:00 PM,271.999999996042,-0.16276,1.049804,0.887044
2/2/2015 2:44:00 PM,285.999999999767,-0.187175,1.131185,0.94401
2/2/2015 2:45:00 PM,287.000000003027,-0.130208,1.10677,0.976562
2/2/2015 3:14:00 PM,316.00000000326,-0.227865,1.342774,1.114909
2/2/2015 3:15:00 PM,316.999999996042,-0.244141,1.310221,1.06608
2/2/2015 3:29:00 PM,330.999999999767,-0.138346,1.212564,1.074218
2/2/2015 3:30:00 PM,332.000000003027,-0.292969,1.44043,1.147461
2/2/2015 3:44:00 PM,345.999999996275,-0.179036,1.277669,1.098633
2/2/2015 3:45:00 PM,346.999999999534,-0.301107,1.350911,1.049804
2/2/2015 4:14:00 PM,375.999999999767,-0.268555,1.489258,1.220703
2/2/2015 4:15:00 PM,377.000000003027,-0.366211,1.456706,1.090495
2/2/2015 4:29:00 PM,390.999999996275,-0.170899,1.39974,1.228841
2/2/2015 4:30:00 PM,391.999999999534,-0.097656,1.245117,1.147461
2/2/2015 4:44:00 PM,406.00000000326,-0.309245,1.554362,1.245117
2/2/2015 4:45:00 PM,406.999999996042,-0.398763,1.529948,1.131185
2/2/2015 5:14:00 PM,435.999999996275,-0.276693,1.489258,1.212565
2/2/2015 5:15:00 PM,436.999999999534,-0.349935,1.627604,1.277669
2/2/2015 5:29:00 PM,451.00000000326,-0.146484,1.513672,1.367188
2/2/2015 5:30:00 PM,451.999999996042,-0.138346,1.464843,1.326497
2/2/2015 5:44:00 PM,465.999999999767,-0.358073,1.676432,1.318359
2/2/2015 5:45:00 PM,467.000000003027,-0.203451,1.554362,1.350911
