---
instrument_id: '392'
data_file_original_name: 'EPA2017B_NOx.csv'
skip_headers: '1'
charts: ''
headers:
    - 'Local_Time_PST'
    - 'Experimental_Time_min'
    - 'NO_UNCOR_ppb'
    - 'NO2_UNCOR_ppb'
    - 'NOx_UNCOR_ppb'
dataset_id: '3078'
experiment_link: 'https://icarus.ucdavis.edu/chambers/539/experiments/441'
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 16:22:14'
dataset_updated_at: '2021-08-26 16:22:14'
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
2/1/2015 10:29:00 AM,-63.0000000062864,-0.089518,0.480143,0.390625
2/1/2015 10:30:00 AM,-62.0000000030268,0.309245,0.12207,0.431315
2/1/2015 10:44:00 AM,-47.9999999993015,-0.08138,0.618489,0.537109
2/1/2015 10:45:00 AM,-47.0000000065193,0.089518,0.480143,0.569661
2/1/2015 11:14:00 AM,-18.0000000062864,0.154622,0.561523,0.716145
2/1/2015 11:15:00 AM,-17.0000000030268,0.08138,0.472005,0.553385
2/1/2015 11:29:00 AM,-2.99999999930151,0.073242,0.610351,0.683593
2/1/2015 11:30:00 AM,-2.00000000651926,0.236002,0.358073,0.594075
2/1/2015 11:44:00 AM,11.999999997206,-0.024414,0.561523,0.537109
2/1/2015 11:45:00 AM,13.0000000004657,-0.317383,0.911458,0.594075
2/1/2015 12:14:00 PM,42.0000000006985,-0.089518,0.960286,0.870768
2/1/2015 12:15:00 PM,42.9999999934807,-0.048828,0.813802,0.764974
2/1/2015 12:29:00 PM,56.999999997206,-0.073242,1.049804,0.976562
2/1/2015 12:30:00 PM,58.0000000004657,0.292969,0.610351,0.90332
2/1/2015 12:44:00 PM,71.9999999937136,0.016276,0.90332,0.919596
2/1/2015 12:45:00 PM,72.9999999969732,0.12207,0.813802,0.935872
2/1/2015 1:14:00 PM,101.999999997206,0.187174,0.69987,0.887044
2/1/2015 1:15:00 PM,103.000000000466,-0.016276,0.960286,0.94401
2/1/2015 1:29:00 PM,116.999999993714,-0.016276,1.057942,1.041666
2/1/2015 1:30:00 PM,117.999999996973,0.089518,1.033529,1.123047
2/1/2015 1:44:00 PM,132.000000000698,-0.032552,1.114909,1.082357
2/1/2015 1:45:00 PM,132.999999993481,0.04069,0.935872,0.976562
2/1/2015 2:14:00 PM,161.999999993714,0.138346,0.838216,0.976562
2/1/2015 2:15:00 PM,162.999999996973,0.12207,1.049805,1.171875
2/1/2015 2:29:00 PM,177.000000000698,-0.048828,1.334635,1.285807
2/1/2015 2:30:00 PM,177.999999993481,0.024414,1.188151,1.212565
2/1/2015 2:44:00 PM,191.999999997206,0.089518,1.204427,1.293945
2/1/2015 2:45:00 PM,193.000000000466,0.065104,1.074219,1.139323
2/1/2015 3:14:00 PM,222.000000000698,0.016276,1.269531,1.285807
2/1/2015 3:15:00 PM,222.999999993481,-0.130208,1.448567,1.318359
2/1/2015 3:29:00 PM,236.999999997206,-0.017756,1.447088,1.429332
2/1/2015 3:30:00 PM,238.000000000466,-0.065104,1.399739,1.334635
2/1/2015 3:44:00 PM,251.999999993714,0.20345,1.220704,1.424154
2/1/2015 3:45:00 PM,252.999999996973,-0.358073,1.60319,1.245117
2/1/2015 4:14:00 PM,281.999999997206,-0.390625,1.76595,1.375325
2/1/2015 4:15:00 PM,283.000000000466,-0.415039,1.611328,1.196289
2/1/2015 4:29:00 PM,296.999999993714,-0.284831,1.822917,1.538086
2/1/2015 4:30:00 PM,297.999999996973,-0.268555,1.757813,1.489258
2/1/2015 4:44:00 PM,312.000000000698,0.065104,1.464844,1.529948
2/1/2015 4:45:00 PM,312.999999993481,-0.073242,1.513672,1.44043
2/1/2015 5:14:00 PM,341.999999993714,-0.16276,1.538086,1.375326
2/1/2015 5:15:00 PM,342.999999996973,0.089518,1.416016,1.505534
2/1/2015 5:29:00 PM,357.000000000698,0.032552,1.505534,1.538086
2/1/2015 5:30:00 PM,357.999999993481,-0.325521,1.936849,1.611328
2/1/2015 5:44:00 PM,371.999999997206,-0.089518,1.757812,1.668294
2/1/2015 5:45:00 PM,373.000000000466,-0.317383,2.026367,1.708984
2/1/2015 6:14:00 PM,402.000000000698,-0.179037,1.725261,1.546224
2/1/2015 6:15:00 PM,402.999999993481,-0.097656,1.660156,1.5625
2/1/2015 6:29:00 PM,416.999999997206,-0.227865,2.050782,1.822917
2/1/2015 6:30:00 PM,418.000000000466,-0.341797,1.920573,1.578776
2/1/2015 6:44:00 PM,431.999999993714,-0.268555,2.075196,1.806641
2/1/2015 6:45:00 PM,432.999999996973,-0.16276,1.855468,1.692708
2/1/2015 7:14:00 PM,461.999999997206,-0.374349,2.050781,1.676432
2/1/2015 7:15:00 PM,463.000000000466,0.065104,1.652018,1.717122
2/1/2015 7:29:00 PM,476.999999993714,-0.301107,2.09961,1.798503
2/1/2015 7:30:00 PM,477.999999996973,0.097656,1.847331,1.944987
2/1/2015 7:44:00 PM,492.000000000698,-0.154622,2.034505,1.879883
2/1/2015 7:45:00 PM,492.999999993481,-0.170899,2.05892,1.888021
