---
instrument_id: '392'
data_file_original_name: 'EPA2017A_NOx.csv'
skip_headers: '1'
charts: ''
headers:
    - 'Local_Time_PST'
    - 'Experimental_Time_min'
    - 'NO_UNCOR_ppb'
    - 'NO2_UNCOR_ppb'
    - 'NOx_UNCOR_ppb'
dataset_id: '3071'
experiment_link: 'https://icarus.ucdavis.edu/chambers/539/experiments/440'
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 16:17:12'
dataset_updated_at: '2021-08-26 16:17:12'
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 9:09:00 AM,-143.000000005122,-0.252279,0.602214,0.349935
2/1/2015 9:10:00 AM,-142.000000001863,-0.227865,0.626628,0.398763
2/1/2015 10:39:00 AM,-53.0000000051223,-0.032552,0.708007,0.675455
2/1/2015 10:40:00 AM,-52.0000000018626,-0.065104,0.797526,0.732422
2/1/2015 10:54:00 AM,-37.9999999981374,-0.056966,0.691731,0.634765
2/1/2015 10:55:00 AM,-37.0000000053551,0.113932,0.61849,0.732422
2/1/2015 11:09:00 AM,-23.0000000016298,-0.447591,1.049804,0.602213
2/1/2015 11:10:00 AM,-21.9999999983702,-0.08138,0.708007,0.626627
2/1/2015 11:24:00 AM,-8.00000000512227,0.056966,0.683594,0.74056
2/1/2015 11:25:00 AM,-7.00000000186265,-0.073242,0.887044,0.813802
2/1/2015 11:39:00 AM,7.00000000186265,-0.04069,0.952148,0.911458
2/1/2015 11:40:00 AM,7.9999999946449,-0.016276,0.976562,0.960286
2/1/2015 11:54:00 AM,21.9999999983702,-0.065104,0.911458,0.846354
2/1/2015 11:55:00 AM,23.0000000016298,0.078474,0.758579,0.837053
2/1/2015 12:09:00 PM,36.9999999948777,-0.138346,0.887044,0.748698
2/1/2015 12:10:00 PM,37.9999999981374,0.113932,0.756836,0.870768
2/1/2015 12:24:00 PM,52.0000000018626,-0.073242,1.180013,1.106771
2/1/2015 12:25:00 PM,52.9999999946449,0.016276,0.960286,0.976562
2/1/2015 12:39:00 PM,66.9999999983702,0.065104,1.025391,1.090495
2/1/2015 12:40:00 PM,68.0000000016298,0.08138,1.155599,1.236979
2/1/2015 12:54:00 PM,81.9999999948777,-0.089518,1.424153,1.334635
2/1/2015 12:55:00 PM,82.9999999981374,0.008138,1.39974,1.407878
2/1/2015 1:09:00 PM,97.0000000018626,-0.08138,1.147461,1.066081
2/1/2015 1:10:00 PM,97.9999999946449,-0.252279,1.554362,1.302083
2/1/2015 1:24:00 PM,111.99999999837,0.113932,1.310222,1.424154
2/1/2015 1:25:00 PM,113.00000000163,-0.089518,1.611328,1.52181
2/1/2015 1:39:00 PM,126.999999994878,0.065104,1.5625,1.627604
2/1/2015 1:40:00 PM,127.999999998137,0.008138,1.676432,1.68457
2/1/2015 1:54:00 PM,142.000000001863,0.227865,1.424153,1.652018
2/1/2015 1:55:00 PM,142.999999994645,0.008138,1.668294,1.676432
2/1/2015 2:09:00 PM,156.99999999837,-0.032552,1.383463,1.350911
2/1/2015 2:10:00 PM,158.00000000163,0.097656,1.456706,1.554362
2/1/2015 2:24:00 PM,171.999999994878,-0.146484,1.993815,1.847331
2/1/2015 2:25:00 PM,172.999999998137,0.12207,1.814779,1.936849
2/1/2015 2:39:00 PM,187.000000001863,0.236002,1.595053,1.831055
2/1/2015 2:40:00 PM,187.999999994645,-0.113932,2.018229,1.904297
2/1/2015 2:54:00 PM,201.99999999837,-0.08138,2.140299,2.058919
2/1/2015 2:55:00 PM,203.00000000163,-0.04069,2.221679,2.180989
2/1/2015 3:09:00 PM,216.999999994878,0.08138,1.668295,1.749675
2/1/2015 3:10:00 PM,217.999999998137,-0.089518,1.912435,1.822917
2/1/2015 3:24:00 PM,232.000000001863,-0.073242,2.075195,2.001953
2/1/2015 3:25:00 PM,232.999999994645,-0.105794,2.205403,2.099609
2/1/2015 3:39:00 PM,246.99999999837,-0.048828,2.115885,2.067057
2/1/2015 3:40:00 PM,248.00000000163,0.032552,2.156575,2.189127
2/1/2015 3:54:00 PM,261.999999994878,0.024414,2.360026,2.38444
2/1/2015 3:55:00 PM,262.999999998137,0.048828,2.22168,2.270508
2/1/2015 4:09:00 PM,277.000000001863,-0.170899,2.124024,1.953125
2/1/2015 4:10:00 PM,277.999999994645,-0.065104,2.213541,2.148437
2/1/2015 4:24:00 PM,291.99999999837,-0.138346,2.42513,2.286784
2/1/2015 4:25:00 PM,293.00000000163,-0.195312,2.734374,2.539062
2/1/2015 4:40:00 PM,307.999999998137,-0.105794,2.604166,2.498372
2/1/2015 4:54:00 PM,322.000000001863,-0.113932,2.612304,2.498372
2/1/2015 4:55:00 PM,322.999999994645,-0.374349,3.019205,2.644856
2/1/2015 5:09:00 PM,336.99999999837,0.04069,2.107747,2.148437
2/1/2015 5:10:00 PM,338.00000000163,0.154622,2.083334,2.237956
2/1/2015 5:24:00 PM,351.999999994878,-0.162761,2.579753,2.416992
2/1/2015 5:25:00 PM,352.999999998137,0.048828,2.628581,2.677409
2/1/2015 5:39:00 PM,367.000000001863,0,2.579752,2.579752
2/1/2015 5:40:00 PM,367.999999994645,-0.138346,2.978515,2.840169
2/1/2015 5:54:00 PM,381.99999999837,-0.179037,2.840169,2.661132
2/1/2015 5:55:00 PM,383.00000000163,-0.170899,2.994792,2.823893
2/1/2015 6:09:00 PM,396.999999994878,-0.317383,2.522787,2.205404
2/1/2015 6:10:00 PM,397.999999998137,-0.154622,2.555338,2.400716
2/1/2015 6:24:00 PM,412.000000001863,-0.154622,2.848307,2.693685
2/1/2015 6:25:00 PM,412.999999994645,-0.105794,2.970377,2.864583
2/1/2015 6:39:00 PM,426.99999999837,-0.203451,3.116862,2.913411
2/1/2015 6:40:00 PM,428.00000000163,-0.187175,3.092448,2.905273
2/1/2015 6:54:00 PM,441.999999994878,-0.146484,3.068033,2.921549
2/1/2015 6:55:00 PM,442.999999998137,-0.073242,3.125,3.051758
2/1/2015 7:09:00 PM,457.000000001863,-0.073242,2.563476,2.490234
2/1/2015 7:10:00 PM,457.999999994645,-0.219727,2.913412,2.693685
2/1/2015 7:24:00 PM,471.99999999837,-0.260417,3.16569,2.905273
2/1/2015 7:25:00 PM,473.00000000163,-0.065104,3.116862,3.051758
2/1/2015 7:39:00 PM,486.999999994878,-0.236003,3.230794,2.994791
2/1/2015 7:40:00 PM,487.999999998137,0.04069,3.076172,3.116862
2/1/2015 7:54:00 PM,502.000000001863,0.138346,2.970378,3.108724
2/1/2015 7:55:00 PM,502.999999994645,0.073242,3.255209,3.328451
