| Increasing concerns with greenhouse gas emissions have propelled research in greenhouse gas emissions, their quantities and methods of abatement. Nitrous oxide and methane are two greenhouse gases that have very significant impacts on global warming. This research is the development of a new passive flux sampler, based on previous work, capable of sampling both methane and nitrous oxide simultaneously. The new sampler is constructed completely out of stainless steel, 175 mm long and has a projected width of 50 mm. It contains zeolite 5A, which has been found able of adsorbing both methane and nitrous oxide simultaneously. As air passes through the zeolite 5A in the sampler, at a rate proportional to the external wind speed, the adsorbant adsorbs methane and nitrous oxide. The amount of gas adsorbed is later determined in a laboratory analysis. In a series of tests the adsorbent was found to be 91% +/- 11% efficient at adsorbing nitrous oxide and 9% +/- 6% efficient at adsorbing methane. (Abstract shortened by UMI.)... |
