Native Flags for IMPROVE Aerosol Preliminary
Here are your query results:
| ProtocolID | Flag | StatusFlag | Description | FlagType | SourceColumn |
| 1009 | | V4 | Unknown | Temporary | FLAG_% |
| 1009 | 0 | M1 | Data points with NULL values in Debbie Miller's RHR data that have a '0' value in the flag_a, flag_b, flag_c, or flag_d field. | Quality Assurance | FLAG_% |
| 1009 | AA | M2 | ORGANIC ARTIFACT CORRECTED | Quality Assurance | FLAG_% |
| 1009 | AP | V5 | Possible Organic Artifact | Quality Assurance | FLAG_% |
| 1009 | BI | M2 | Incorrect installation of sample cartridge during weekly change | Quality Assurance | FLAG_% |
| 1009 | CG | V6 | Flowrate less than 18 liters per minute for more than 6 hours | Quality Assurance | FLAG_% |
| 1009 | CL | M3 | Flowrate less than 15 liters per minute for more than 6 hours | Quality Assurance | FLAG_% |
| 1009 | DA | M1 | Did not analyze | Quality Assurance | FLAG_% |
| 1009 | DE | V2 | Derived value | Quality Assurance | FLAG_% |
| 1009 | DF | V4 | Unknown | Unknown | FLAG_% |
| 1009 | EE | V4 | Unknown flag | Temporary | FLAG_% |
| 1009 | EP | M1 | Equipment Problem | Quality Assurance | FLAG_% |
| 1009 | LC | V0 | Unknown | Unknown | FLAG_% |
| 1009 | LD | V0 | Below detection limit - at one point this flag was mapped to 'NM' | Quality Assurance | FLAG_% |
| 1009 | LF | V6 | The flow is greater than 10% higher or lower than the nominal flow rate. This effects the cut point of the particle but the concentrations are correct. | Quality Assurance | FLAG_% |
| 1009 | MM | V4 | Unknown | Unknown | FLAG_% |
| 1009 | NA | M1 | Not Applicable. This is used for missing modules with non-protocol samplers with less than four modules. | Quality Assurance | FLAG_% |
| 1009 | NM | V0 | NORMAL | Quality Assurance | FLAG_% |
| 1009 | NR | V0 | Samples that have OP=0 that may actually have a negative OP. | Quality Assurance | FLAG_% |
| 1009 | NS | M1 | Operator did not install the samples or installed them too late to acquire a valid time. All filters involved. | Quality Assurance | FLAG_% |
| 1009 | OL | M1 | Off Line. In some cases, this is used when the sampler is inoperable due to hurricane or fire. For year 2000, this is used for the period after the Version 1 sampler is removed and before the Version 2 samples begins operation. | Quality Assurance | FLAG_% |
| 1009 | PC | V5 | Possible contamination | Quality Assurance | Status |
| 1009 | PO | M1 | Power Outage. All filters involved. | Quality Assurance | FLAG_% |
| 1009 | QA | I1 | QA problem suspected, value held back for further investigation | Quality Assurance | FLAG_% |
| 1009 | QC | V4 | Valid value despite failing to meet some QC or statistical criteria. | Quality Assurance | FLAG_% |
| 1009 | QD | V4 | Questionable data | Quality Assurance | FLAG_% |
| 1009 | QV | V4 | Data quality check (internal use only) | Quality Assurance | FLAG_% |
| 1009 | RF | V6 | The flow is greater than 20% higher or lower than the nominal flow rate. This affects the cut point of the particle but the concentrations are correct. | Quality Assurance | FLAG_% |
| 1009 | SA | V6 | Used to indicate some sort of 'Sampling Anomaly', though the exact definition has yet to be satisfactorily defined. | Quality Assurance | FLAG_% |
| 1009 | SD | V6 | Short Duration Sample; The sample is too short for use in calculating RHR metrics, but it is still a meaningful result that is useful in other contexts. | Quality Assurance | FLAG_% |
| 1009 | SE | V0 | Unknown | Unknown | FLAG_% |
| 1009 | SO | V4 | Sent Out | Temporary | FLAG_% |
| 1009 | SP | V0 | An artifact filter was swapped with a sample filter. | Quality Assurance | FLAG_% |
| 1009 | SW | V0 | Suspected filter swap. | Quality Assurance | FLAG_% |
| 1009 | TO | V6 | Timing Outside normal bounds | Quality Assurance | Flag_% |
| 1009 | TU | V6 | Non-standard sampling conditions | Quality Assurance | FLAG_% |
| 1009 | UN | M2 | The concentrations failed the data validation for unknown reasons. | Quality Assurance | FLAG_% |
| 1009 | XX | M2 | The filter is damaged. | Quality Assurance | FLAG_% |