Halogenated gases
25 Halocarbons[pptv] relevant for climate issues will be analysed in grab samples collected weekly. The following compounds are currently observed and analysed :
- Halons H-1301, H-1211
- CFCs: CFC-11, CFC-12, CFC-113, CFC-114, CFC-115
- HCFCs: HCFC-22, HCFC-141b, HCFC-142b, HCFC-124
-CH3Cl, CH3Br, CH3I, CH2Cl2, CHCl3, CH3CCl3,CCl4, TCE, PCE
-HFCs:HFC-134a, HFC-152a, HFC-125
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Citation proposal
(2011) . Halogenated gases. https://geoportal.mountaingenius.org/geonetwork/srv/api/records/cd85fb2e-d1e1-4b99-bc2d-c46bfb72e4b2 |
Simple
- Date ( Publication )
- 2011-04-01T19:01:00
- Purpose
- The monitoring activity of Halogenathed compounds at NCO-P can offer important insights on changes in atmospheric composition in a region that is of great significance for emissions of species, both anthropogenic and biogenic, relevant for the climate. Measurements are performed in the framework of international monitoring program ABC (Atmospheric Brown Clouds). Air samples at the NCO-P are collected by drawing ambient air into 1-liter stainless steel flasks by means of an ultra clean air pump, over a period of about 10 min, reaching the pressure 1.8×105 Pa. Air aliquots are then analysed by gas chromatography-mass spectrometry (Agilent 6890–5973 GC-MS) equipped with an auto-sampling/pre-concentration unit (Markes International UNITY-Air Server).
- Status
- Completed
Point of contact
Point of contact
Principal investigator
- Maintenance and update frequency
- As needed
- Keywords
-
- SHARE , Network , Station , High Altitude
- Keywords ( Theme )
-
- ABC , WMO , GAW , GAWSIS , CEOP
- Keywords ( Theme )
-
- air , research , pollution , ecosystems , landscape , natural areas , climate
- Keywords ( Place )
-
- Nepal , Himalaya
- Use limitation
- No conditions apply
- Access constraints
- Copyright
- Other constraints
- Character set
- UTF8
- Topic category
-
- Climatology, meteorology, atmosphere
- Environment
- Geoscientific information
))
- Supplemental Information
- Reference system identifier
- EPSG / WGS 1984 / 7.4
- OnLine resource
-
SHARE Geonetwork portal
SHARE Geonetwork portal
- OnLine resource
- http://evk2.isac.cnr.it/
- OnLine resource
-
GAW_188_web_20100128.pdf
GAW Report No. 188 :Revision of the World Data Centre for Greenhouse Gases Data Submission and Dissemination Guide
- Hierarchy level
- Series
- Other
- data: measures
- Statement
-
A “clean” sampling device to collect grab air samples to determine the temporal trends of trace gases (HCFC, HFC, CFC, ...).
These measurements were carried out in the framework of the UNEP – ABC (Atmospheric Brown Clouds)
gmd:MD_Metadata
- File identifier
- cd85fb2e-d1e1-4b99-bc2d-c46bfb72e4b2 XML
- Metadata language
- eng
- Character set
- UTF8
- Parent identifier
- 0247377b-d149-4960-ab40-14ae2ed630de
- Hierarchy level
- Series
- Date stamp
- 2011-09-21T11:58:11
- Metadata standard name
- ISO 19115:2003/19139
- Metadata standard version
- 1.0
Point of contact
Overviews
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