Making small-scale classroom greenhouse gas flux calculations using a handmade gas capture hood

Schouten, Peter W. and Sharma, Ashok and Burn, Stewart and Goodman, Nigel and Parisi, Alfio and Downs, Nathan and Lemckert, Charles (2013) Making small-scale classroom greenhouse gas flux calculations using a handmade gas capture hood. Teaching Science, 59 (1). pp. 48-53. ISSN 1449-6313

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Abstract

The emissions of various types ot greenhouse gases (GHGs) from natural and industrial sources are undergoing a great deal ot scrutiny around the world. The three main GHGs that are of most concern are carbon dioxide (CO2), nitrous oxide (N2O) and methane (CH4). CO2, N2O and CH4 are all efficient absorbers and emitters of thermal infrared radiation, and as a result, once they are emitted into the atmosphere, they can contribute directly to the greenhouse effect. One of the most popular GHG measurement techniques is near dispersive infrared (NDIR) gas analysis. This paper describes a high school Physics or general science practical
exercise that uses an inexpensive NDIR based gas analysis unit combined with a gas capture hood to measure CO2 gas flux from different water types and soil/fertiliser combinations. From this, students will gain an understanding of how GHGs are emitted from natural sources and how they are measured by scientists.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Copyright of Teaching Science: The Journal of the Australian Science Teachers Association is the property of Australian Science Teachers Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use.
Faculty / Department / School: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 03 Jun 2013 04:19
Last Modified: 27 Sep 2017 00:03
Uncontrolled Keywords: greenhouse gases; climate; science education; classrooms; carbon dioxide; nitrous oxide; methane
Fields of Research : 05 Environmental Sciences > 0599 Other Environmental Sciences > 059999 Environmental Sciences not elsewhere classified
13 Education > 1302 Curriculum and Pedagogy > 130212 Science, Technology and Engineering Curriculum and Pedagogy
04 Earth Sciences > 0401 Atmospheric Sciences > 040103 Atmospheric Radiation
Socio-Economic Objective: D Environment > 96 Environment > 9602 Atmosphere and Weather > 960201 Atmospheric Composition (incl. Greenhouse Gas Inventory)
URI: http://eprints.usq.edu.au/id/eprint/23179

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