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Template for inorganic air/aerosol chemistry (filter-based)
This format should be used for submitting all relevant inorganic components (sulphur, nitrogen, base cations and sea salt ions)
measured in air and aerosols with a filter-based system.
Typically a three stage filterpack sampler (the EMEP reference method)
or a denuder system, but also chemical speciation of one filter systems like PM10 and PM2.5.
Points to note:
- Report sum of nitrogen compounds, i.e. HNO3+NO3 and NH3+NH4 in addition to the concentration of the individual components
- Include information on filter type(s) and coating solution(s).
- Include information on both the sampling and analytical instruments
- Include information on performance in laboratory intercomparison, i.e in EMEP and WMO/GAW for the respective year
Downloading template as text file
You could download the template and start to modify the text with your own metadata. Due to limitations of the online portal we could not provide files with the .nas file extension. So please download the text file and edit, and remember to use the .nas file-extension when you create your datafile:
inorganic-air-aerosol-chemistry-filter-based.txt
* To validate the file, please use the EBAS Submission Tool
Flags commonly used with this format:
All the flags defined for EBAS can be used, and the data submitter is encourage to go through the list of all EBAS flags prior
to submitting to ensure that appropriate flagging is done. The most common flags for these measurements are:
Group 9: Missing flags
| Flag |
Validity |
Description |
| 999 |
M |
Missing measurement, unspecified reason |
Group 7: Flags used when the value is unknown
| Flag |
Validity |
Description |
| 780 |
V |
Value below detection or quantification limit, data element contains estimated or measured value. Use of flag 147 is encouraged. |
| 781 |
V |
Value below detection limit, data element contains detection limit |
Group 6: Mechanical or instrumental problem
| Flag |
Validity |
Description |
| 651 |
V |
Agricultural activity nearby |
| 652 |
V |
Construction/acitivity nearby |
| 658 |
I |
Too small air volume |
| 659 |
I |
Unspecified sampling anomaly |
| 660 |
V |
Unspecified sampling anomaly, considered valid |
| 662 |
V |
Too high sampling flow, data considered valid |
| 663 |
I |
Too high sampling flow, data considered invalid |
| 664 |
I |
Instrument flow(s) too far off target value, considered invalid |
| 665 |
V |
Filter damaged, valid |
| 666 |
I |
Filter damaged, invalid |
| 668 |
V |
Moist or wet filter, valid |
| 669 |
I |
Moist or wet filter, invalid |
Group 5: Chemical problem
| Flag |
Validity |
Description |
| 555 |
V |
Pollen and/or leaf contamination, but considered valid |
| 558 |
V |
Dust contamination, but considered valid |
| 559 |
V |
Unspecified contamination or local influence, but considered valid |
| 565 |
I |
Pollen and/or leaf contamination, considered invalid |
| 568 |
I |
Dust contamination, considered invalid |
| 591 |
I |
Agricultural contamination, considered invalid |
| 599 |
I |
Unspecified contamination or local influence |
Group 4: Extreme or inconsistent values
| Flag |
Validity |
Description |
| 410 |
V |
Sahara dust event |
| 440 |
V |
Reconstructed or recalculated data |
| 459 |
I |
Extreme value, unspecified error |
| 460 |
I |
Contamination suspected |
Group 0: Valid data
| Flag |
Validity |
Description |
| 000 |
V |
Valid measurement |
Template for Data Reporting
118 1001
Aas, Wenche; Someone, Else
NO01L, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18, , 2007, Kjeller, Norway
Hjellbrekke, Anne
CAMP EMEP
1 1
2015 01 01 2015 01 21
1
days from file reference point
27
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
999.999999 999.99 9.999999999 999.99 9.999999999 999.99 9.999999999 999.99 9.999999999 999.99 9.999999999 999.99 9.999999999 999.99 9.999999999 999.99 9.999999999 999.99 9.999999999 999.99 9.999999999 999.99 9.999999999 999.99 9.999999999 999.99 9.999999999
end_time of measurement, days from the file reference point
ammonia, ug N/m3, Matrix=air, Medium=Cellulose, Coating/Solution=Oxalic acid, QA1 outcome=pass, QA1 bias=4%, QA1 variability=2%, QA2 outcome=pass, QA2 bias=6%, QA2 variability=4%, Detection limit=0.01 ug N/m3
numflag ammonia, no unit
ammonium, ug N/m3, Detection limit=0.01 ug N/m3, QA1 outcome=pass, QA1 bias=-1.8 %, QA1 variability=1.3 %, QA2 outcome=pass, QA2 bias=-2.2 %, QA2 variability=1.0 %
numflag ammonium, no unit
sum_ammonia_and_ammonium, ug N/m3, Matrix=air+aerosol, Medium=Teflon+cellulose, Coating/Solution=Oxalic acid, Detection limit=0.01 ug N/m3, QA1 measure ID=, QA1 date=, QA2 measure ID=, QA2 date=
numflag sum_ammonia_and_ammonium, no unit
nitric_acid, ug N/m3, Matrix=air, Medium=Cellulose, Coating/Solution=KOH, QA1 outcome=pass, QA1 bias=8%, QA1 variability=3%, QA2 outcome=pass, QA2 bias=6%, QA2 variability=2%, Detection limit=0.01 ug N/m3
numflag nitric_acid, no unit
nitrate, ug N/m3, Detection limit=0.01 ug N/m3, QA1 outcome=pass, QA1 bias=-0.1 %, QA1 variability=3.4 %, QA2 outcome=pass, QA2 bias=-0.3 %, QA2 variability=2.3 %
numflag nitrate, no unit
sum_nitric_acid_and_nitrate, ug N/m3, Matrix=air+aerosol, Medium=Teflon+cellulose, Coating/Solution=KOH, Detection limit=0.01 ug N/m3, QA1 measure ID=, QA1 date=, QA2 measure ID=, QA2 date=
numflag sum_nitric_acid_and_nitrate, no unit
sulphur_dioxide, ug S/m3, Matrix=air, Medium=Cellulose, Coating/Solution=KOH, QA1 outcome=no pass, QA1 bias=14%, QA1 variability=5%, QA2 outcome=pass, QA2 bias=4%, QA2 variability=5%, Detection limit=0.01 ug S/m3
numflag sulphur_dioxide, no unit
sulphate_total, ug S/m3, Detection limit=0.01 ug S/m3, QA1 outcome=pass, QA1 bias=-0.7 %, QA1 variability=0.3 %, QA2 outcome=pass, QA2 bias=-0.4 %, QA2 variability=0.7 %
numflag sulphate_total, no unit
calcium, ug/m3, QA1 outcome=no pass, QA1 bias=-27.1 %, QA1 variability=1.4 %, QA2 outcome=pass, QA2 bias=-3.1 %, QA2 variability=1.8 %
numflag calcium, no unit
chloride, ug/m3, QA1 outcome=pass, QA1 bias=-11.0 %, QA1 variability=3.0 %, QA2 outcome=pass, QA2 bias=-9.9 %, QA2 variability=2.9 %
numflag chloride, no unit
magnesium, ug/m3, QA1 measure ID=, QA1 date=, QA2 outcome=pass, QA2 bias=-0.5 %, QA2 variability=2.3 %
numflag magnesium, no unit
sodium, ug/m3, QA1 outcome=pass, QA1 bias=-5.1 %, QA1 variability=2.3 %, QA2 outcome= no pass, QA2 bias=-4.9 %, QA2 variability=22.1 %
numflag sodium, no unit
potassium, ug/m3, QA1 outcome=pass, QA1 bias=1.1 %, QA1 variability=1.3 %, QA2 outcome=pass, QA2 bias=1.3 %, QA2 variability=1.0 %
numflag potassium, no unit
0
77
Data definition: EBAS_1.1
Set type code: TU
Timezone: UTC
File name: NO0001R.20150101070000.20150121142400.filter_3pack.inorganics.aerosol.1y.1d.NO01L_NILU_f3p_d_0001.NO01L_NILU_IC_03.lev2.nas
Startdate: 20150101070000
Revision date: 20150121142400
Version: 1
Version description: initial revision, manually inspected
Data level: 2
Period code: 1y
Resolution code: 1d
Sample duration: 1d
Orig. time res.: 1d
Station code: NO0001R
Platform code: NO0001S
Station name: Birkenes
Station WDCA-ID: GAWANO__BIR
Station GAW-Name: Birkenes Atmospheric Observatory
Station GAW-ID: BIR
Station AIRS-ID:
Station other IDs: 201(NILUDB)
Station state/province:
Station land use: Forest
Station setting: Rural
Station GAW type: R
Station WMO region: 6
Station latitude: 58.383333
Station longitude: 8.250000
Station altitude: 190m
Measurement altitude: 200m
Measurement height: 2m
Component: inorganics
Unit: ug/m3
Matrix: aerosol
Laboratory code: NO01L
Instrument type: filter_3pack
Instrument manufacturer: NILU
Instrument model: Three stage open face
Instrument name: NILU_f3p_d_0001
Instrument serial number: 9635
Analytical laboratory code: NO01L
Analytical measurement technique: IC
Analytical instrument manufacturer: Dionex
Analytical instrument model: ICS-3000
Analytical instrument name: NILU_IC_03
Analytical instrument serial number: 12345
Standard method: SOP=EMEP_manual_v1996
Inlet type: Hat or hood
Inlet description: Downward facing
Flow rate: 17.4 l/min
Humidity/temperature control: None
Humidity/temperature control description: filter kept at ambient conditions together with sampling head.
Medium: Teflon
Coating/Solution:
Sample preparation: Water extraction after ultrasonic treatment
Blank correction: Blank corrected
Volume std. temperature: ambient
Volume std. pressure: ambient
Detection limit: 0.01 ug/m3
Detection limit expl.: Determined by taking 3 times standard deviation of ensemble of field blanks
Zero/negative values code: Zero/negative possible
Zero/negative values: Zero/negative values reported as measured if within detection limit, flagged with 780
QA1 measure ID: EMEP31
QA1 date: 20131016
QA1 outcome:
QA1 bias:
QA1 variability:
QA2 measure ID: EMEP32
QA2 date: 20141022
QA2 outcome:
QA2 bias:
QA2 variability:
Originator: Someone, Else, Someone@somewhere.no, Some nice Institute, WOW, Super interesting division, Street 18,, X-9999, Paradise, Noway
Submitter: Hjellbrekke, Anne, agh@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18,, 2007, Kjeller, Norway
Acknowledgement: Request acknowledgement details from data originator
Comment:
starttime endtime NH3 numflag_NH3 NH4+ numflag_NH4+ NH3+NH4 numflag_NH3+NH4 HNO3 numflag_HNO3 NO3- numflag_NO3- HNO3+NO3 numflag_HNO3+NO3 SO2 numflag_SO2 SO4-- numflag_SO4-- Ca++ numflag_Ca++ Cl- numflag_Cl- Mg++ numflag_Mg++ Na+ numflag_Na+ K+ numflag_K+
0.291667 1.291667 0.05 0.781000000 0.21 0.000000000 0.24 0.000000000 0.02 0.781000000 0.05 0.000000000 0.06 0.000000000 0.05 0.000000000 0.06 0.000000000 0.03 0.000000000 0.02 0.781000000 0.04 0.000000000 0.03 0.000000000 0.12 0.000000000
1.291667 2.291667 0.05 0.781000000 0.24 0.000000000 0.27 0.000000000 0.02 0.781000000 0.07 0.000000000 0.08 0.000000000 0.06 0.000000000 0.39 0.000000000 0.01 0.781000000 0.33 0.000000000 0.01 0.781000000 0.03 0.000000000 0.04 0.000000000
2.291667 3.291667 999.99 0.999000000 999.99 0.999000000 999.99 0.999000000 999.99 0.999000000 999.99 0.999000000 999.99 0.999000000 999.99 0.999000000 999.99 0.999000000 999.99 0.999000000 999.99 0.999000000 999.99 0.999000000 999.99 0.999000000 999.99 0.999000000
3.291667 4.291667 0.07 0.000000000 0.09 0.000000000 0.16 0.000000000 0.02 0.781000000 0.16 0.000000000 0.17 0.000000000 0.02 0.781000000 0.58 0.000000000 0.01 0.781000000 0.10 0.000000000 0.01 0.781000000 0.01 0.781000000 0.01 0.000000000
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