Journal ArticleDOI
Nitrous Oxide (N2O): The Dominant Ozone-Depleting Substance Emitted in the 21st Century
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TLDR
In this paper, the ozone depletion potential-weighted anthropogenic emissions of N2O with those of other ozone-depleting substances were compared, and it was shown that N 2O emission currently is the single most important ozone-destroying emission and is expected to remain the largest throughout the 21st century.Abstract:
By comparing the ozone depletion potential-weighted anthropogenic emissions of N2O with those of other ozone-depleting substances, we show that N2O emission currently is the single most important ozone-depleting emission and is expected to remain the largest throughout the 21st century. N2O is unregulated by the Montreal Protocol. Limiting future N2O emissions would enhance the recovery of the ozone layer from its depleted state and would also reduce the anthropogenic forcing of the climate system, representing a win-win for both ozone and climate.read more
Citations
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The importance of abiotic reactions for nitrous oxide production
TL;DR: In this article, the authors highlight the defining characteristics, environmental controls, and isotopic signatures of abiotic reactions between nitrogen cycle intermediates (hydroxylamine, nitric oxide, and nitrite), redox-active metals (iron and manganese) and organic matter (humic and fulvic acids) that can lead to N2O production.
Journal ArticleDOI
Strategies to mitigate N2O emissions from biological nitrogen removal systems.
TL;DR: Mitigation strategies should also comprise optimizations of the process parameters as well as bio-augmentative approaches empowered to restore the functional capacity and to deal with unwanted accumulation of intermediates.
Journal ArticleDOI
Effects of sulfamethazine on denitrification and the associated N2O release in estuarine and coastal sediments.
Lijun Hou,Guoyu Yin,Min Liu,Junliang Zhou,Yanling Zheng,Juan Gao,Haibo Zong,Yi Yang,Lei Gao,Chunfu Tong +9 more
TL;DR: The results imply that the wide occurrence of residual antibiotics in estuarine and coastal ecosystems may influence eutrophication control, greenhouse effects, and atmospheric ozone depletion by inhibiting denitrification and stimulating the release of N2O.
Journal ArticleDOI
Higher diversity and abundance of denitrifying microorganisms in environments than considered previously.
Wei Wei,Kazuo Isobe,Tomoyasu Nishizawa,Lin Zhu,Yutaka Shiratori,Nobuhito Ohte,Keisuke Koba,Shigeto Otsuka,Keishi Senoo +8 more
TL;DR: New PCR primers covering the diverse nirK and nirS are developed and shown to be more phylogenetically diverse and 2–6 times more abundant than those revealed with the conventional primers.
Journal ArticleDOI
Factors promoting emissions of nitrous oxide and nitric oxide from denitrifying sequencing batch reactors operated with methanol and ethanol as electron donors.
Huijie Lu,Kartik Chandran +1 more
TL;DR: Evaluating the impact of three factors, organic carbon limitation, nitrite concentrations, and dissolved oxygen concentrations on gaseous N2O and NO emissions from two sequencing batch reactors (SBRs), operated with methanol and ethanol as electron donors, suggests that for dissolved oxygen, but not for carbon limitation or nitrite exposure, N 2O emission from heterotrophic denitrification reactors can vary as a function of the electron donor used.
References
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Climate change 2007: the physical science basis
Susan Solomon,Dahe Qin,Martin R. Manning,Melinda Marquis,Kristen Averyt,Melinda M.B. Tignor,H. L. Miller,Z. Chen +7 more
TL;DR: The first volume of the IPCC's Fourth Assessment Report as mentioned in this paper was published in 2007 and covers several topics including the extensive range of observations now available for the atmosphere and surface, changes in sea level, assesses the paleoclimatic perspective, climate change causes both natural and anthropogenic, and climate models for projections of global climate.
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Special report on emissions scenarios : a special report of Working group III of the Intergovernmental Panel on Climate Change
Nebojsa Nakicenovic,Joseph Alcamo,Ged Davis,B. de Vries,Jørgen Villy Fenhann,S. Gaffin,K. Gregory,Arnulf Grubler,Tae Yong Jung,T. Kram,E. L. La Rovere,Laurie Michaelis,S. Mori,Tsuneyuki Morita,William Pepper,Hugh Pitcher,Lynn Price,Keywan Riahi,A. Roehrl,Hans-Holger Rogner,Alexei Sankovski,Michael E. Schlesinger,P.R. Shukla,Steven J. Smith,Robert Swart,S. van Rooijen,Nadejda M. Victor,Z. Dadi +27 more
TL;DR: IPCC Special Report on Emissions Scenarios as mentioned in this paper provides an overview of the scenario literature and the scenario driving forces, as well as a summary of the discussions and recommendations.
Journal ArticleDOI
The influence of nitrogen oxides on the atmospheric ozone content
TL;DR: In this paper, the probable importance of NO and NO2 in controlling the ozone concentrations and production rates in the stratosphere is pointed out and some processes which may lead to production of nitric acid are discussed.
Climate change 2007: Mitigation. Contribution of Working Group III to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Summary for Policymakers.
TL;DR: In this paper, the authors present a collection of essays by Terry Barker, Igor Bashmakov, Lenny Bernstein, Jean Bogner, Peter Bosch, Rutu Dave, Ogunlade Davidson, Brian Fisher, Michael Grubb, Sujata Gupta, Kirsten Halsnaes, BertJan Heij, Boubacarraoui, Shigeki Kobayashi, Mark Levine, Daniel Martino, Omar Masera Cerutti, Bert Metz, Leo Meyer, Gert-Jan Nabuurs, Adil Najam