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18 Appendix -- Data Rules/Flags

General Rules – All Stations

Where O_Vref is ≠ 0, then mark as invalid all data from all continuous analyzers

   

When NO = negative, mark NO as invalid

   

When NO = negative, mark NO2 as invalid

   

When NO = negative, mark NOx as invalid

   

When NO = negative, mark Nox_Flow as invalid

   

When NO = negative, mark Nox_Pres as invalid

   

When CO = negative, mark as invalid data

   

When CO = negative, CO_Flo is invalid

   

When CO = negative, CO_Chass is invalid

   

When TEOM_Sta ≠ 0 and TEOM_Op ≠ 4, then mark as invalid all TEOM parameters for that record

   
 

PM10; PM2.5; PM Coars; TEOM Sta; TEOM Op; Filter A; Filter B; Mflow A; MFlow B; VFlow A; VFlow B; MFlowBy; VFlowBy; TEOM Vac; Noise A; Noise B; FreqA; FreqB; TEOM AT; TEOM RH; TEOM BP; Dew Poin

When TEOM Filter_A or TEOM Filter_B > 75, then mark all TEOM parameters as invalid

   
 

PM10; PM2.5; PM Coars; TEOM Sta; TEOM Op; Filter A; Filter B; Mflow A; MFlow B; VFlow A; VFlow B; MFlowBy; VFlowBy; TEOM Vac; Noise A; Noise B; FreqA; FreqB; TEOM AT; TEOM RH; TEOM BP; Dew Poin

When Aeth < 0, then mark as invalid Aeth data

   

When Aeth > 15, then mark data as outliers

   

When Aeth_1 < 0, then mark as invaild Aeth_1 data

   

When Aeth_2 < 0, then mark as invalid Aeth_2 data

   

When Aeth_3 < 0, then mark as invalid Aeth_3 data

   

When Vaisala_1 < 0, then mark all Vaisala parameters invalid (Vaisala, Vaisala_1)

   

When GasCal_S = 3 or 6 or 7 or 15 or 18 or 19, mark all gas analyzer parameter data invalid: NO; NO2; Nox; NOx Flow; NOx Pres; CO; CO Flow; CO Chass.

GasCal_S

1 = zero (calibration)

   

2 = span 400 ppb NO/CO

   

3 = error

   

4 = manual zero/span activity

   

5 = span 100 ppb NO/CO (every 11 days)

   

6 = error

   

7 = error

   

8 = span 400 ppb SO2

   

11 = span 100 ppb SO2 (every 11 days)

   

14 = manual zero/span activity

   

15 = error

   

17 = manual zero/span activitiy

   

18 = error

   

19 = error

   

When NO > 450, then mark as outlier (NO, NO2, NOX) for that record

   

When CO > 2.25, then mark as outlier (CO) for that record

   

When PM10 > 400, mark data as outliers

   

When PM2_5 > 100, mark data as outliers

   

When PM_Coars < 0, mark PM_Coars as invalid

   

When Aeth > 15, then mark data as outliers

   
Updated: 05/21/2013
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