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File:Mauna Loa HFC-134a (CH2FCF3) concentration.png

From Wikipedia, the free encyclopedia

Original file(1,200 × 900 pixels, file size: 112 KB, MIME type: image/png)

Summary

Description
Graph shows the concentration of refrigerant R-134a (HFC-134a) in earth's atmosphere versus time. X-axis data interval is weekly, starting year 1995. Y-axis concentration is picamole per mole (parts per trillion). Atmospheric samples were gathered within evacuated flasks from the Mauna Loa Observatory Hawaii, then sealed and transported to Boulder Colorado for the analysis. Similar observations gathered from other remote sampling sites around the world validates that these data represent a well-mixed gas throughout the atmosphere.
Date
Source https://www.esrl.noaa.gov/gmd/dv/iadv/graph.php?code=MLO&program=hats&type=ts
Author NOAA

Licensing

Public domain
This image is in the public domain because it contains materials that originally came from the U.S. National Oceanic and Atmospheric Administration, taken or made as part of an employee's official duties.

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Captions

Mauna Loa HFC-134a concentration 1995-

Items portrayed in this file

depicts

1 April 2020

image/png

File history

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Date/TimeThumbnailDimensionsUserComment
current02:37, 9 February 2024Thumbnail for version as of 02:37, 9 February 20241,200 × 900 (112 KB)Bikesrcoolupdate February 2024
02:24, 26 September 2021Thumbnail for version as of 02:24, 26 September 20211,200 × 900 (113 KB)Bikesrcool2021 update
13:07, 3 October 2020Thumbnail for version as of 13:07, 3 October 20201,200 × 900 (146 KB)BikesrcoolUploaded a work by NOAA from https://www.esrl.noaa.gov/gmd/dv/iadv/graph.php?code=MLO&program=hats&type=ts with UploadWizard
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