Ammonia in the environment: From ancient times to the present

Sutton, Mark A.; Erisman, J. W.; Dentener, Frank; Möller, Detlev

doi:10.1016/j.envpol.2008.03.013

Cited by 315 publications

(191 citation statements)

References 119 publications

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“…Ammonium salts archived in polar ice sheets from preindustrial times derived from emissions of ammonia from both terrestrial and marine sources [6,8], largely of biological origin. Ammonia is easily entrained into aerosol and re-deposited.…”

Section: Nitrogen Compounds In Snow and Icementioning

confidence: 99%

Ice sheets and nitrogen

Wolff

2013

Phil. Trans. R. Soc. B

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Snow and ice play their most important role in the nitrogen cycle as a barrier to land–atmosphere and ocean–atmosphere exchanges that would otherwise occur. The inventory of nitrogen compounds in the polar ice sheets is approximately 260 Tg N, dominated by nitrate in the much larger Antarctic ice sheet. Ice cores help to inform us about the natural variability of the nitrogen cycle at global and regional scale, and about the extent of disturbance in recent decades. Nitrous oxide concentrations have risen about 20 per cent in the last 200 years and are now almost certainly higher than at any time in the last 800 000 years. Nitrate concentrations recorded in Greenland ice rose by a factor of 2–3, particularly between the 1950s and 1980s, reflecting a major change in NO x emissions reaching the background atmosphere. Increases in ice cores drilled at lower latitudes can be used to validate or constrain regional emission inventories. Background ammonium concentrations in Greenland ice show no significant recent trend, although the record is very noisy, being dominated by spikes of input from biomass burning events. Neither nitrate nor ammonium shows significant recent trends in Antarctica, although their natural variations are of biogeochemical and atmospheric chemical interest. Finally, it has been found that photolysis of nitrate in the snowpack leads to significant re-emissions of NO x that can strongly impact the regional atmosphere in snow-covered areas.

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Section: Nitrogen Compounds In Snow and Icementioning

confidence: 99%

Ice sheets and nitrogen

Wolff

2013

Phil. Trans. R. Soc. B

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“…It has been known since the end of the 19th century (Eriksson, 1952;Sutton et al, 2008) that ammonia mainly originates from livestock (Bouwman et al, 1997;Dammgen et al, 2005;Misselbrook et al, 2000). The main NH x sources are housing and waste storage (Bussink and Oenema, 1998), and land spread manure (Génermont and Cellier, 1997;Sommer et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Investigating the stomatal, cuticular and soil ammonia fluxes over a growing tritical crop under high acidic loads

et al. 2012

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Abstract. Ammonia concentration and fluxes were measured above a growing triticale field for two months during May and June 2010 at the NitroEurope crop site in Grignon (Fr-Gri) near Paris, France. The measurement campaign started 15 days following a 40 kg N ha −1 application of an ammonium nitrate solution. A new mini-wedd (Wet Effluent Denuder) flow injection analyser with three channels (ROSAA, RObust and Sensitive Ammonia Analyser) was used to measure NH 3 fluxes using the aerodynamic gradient method. The measured ammonia concentrations varied from 0.01 to 39 µg NH 3 m −3 and were largely influenced by advection from the nearby farm. The ammonia fluxes ranged from -560 to 220 ng NH 3 m −2 s −1 and averaged -29 ng NH 3 m −2 s −1 . During some periods the large deposition fluxes could only be explained by a very small surface resistance, which may be partly due to the high concentrations of certain acid gases (HNO 3 and SO 2 ) observed in this suburban area. Ammonia emissions were also observed. The canopy compensation point C c was around 1.5 µg NH 3 m −3 on average. The canopy emission potential c (C c normalised for the temperature response of the Henry equilibrium) decreased over the course of the measurement campaign from c = 2200 to c = 450, the latter value being close to the median stomatal emission potential ( s ) and lower than the median ground emission potential ( g ) for managed ecosystems reported in the literature. The temporal dynamics of the measured NH 3 flux compared well with the Surfatm-NH 3 model using fitted parameters. The subjectivity of the model fitting is discussed based on a sensitivity analysis.

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“…Ils sont principalement émis dans l'atmosphère sous forme de NO mais vont rapidement se convertir en NO 2 et contribuer au cycle catalytique de formation de l'ozone troposphérique (O 3 ). Delmas et al (1997) (Yienger and Levy, 1995 La principale source d'ammoniac (NH 3 ) au niveau global provient de l'hydrolyse de l'urée produite par les animaux (Galloway et al, 2004;Philippe et al, 2011;Sutton et al, 2008). Bouwman et al (1997) 6(%-'!-!…”

Section: = ) 2(%)%") !$%($!'+)unclassified

Regional Modeling of Aerosol Chemical Composition at the Puy de Dôme (France)

Barbet

Deguillaume

Chaumerliac

et al. 2016

Springer Proceedings in Complexity

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RemerciementsCes années de thèse se sont déroulées au sein du Laboratoire de Météorologie Physique dont le directeur était Wolfram Wobrock, puis Joël Van Baelen. Je tiens tout d'abord à les remercier tous deux de m'avoir accueillie au sein de ce laboratoire et ce depuis ma première année de Master.Je souhaite remercier sincèrement mes deux directeurs de thèse, Nadine Chaumerliac et Laurent Deguillaume qui, tout au long de ces années, m'ont suivie et encouragée. Les discussions que nous avons eues et les conseils qu'ils m'ont prodigués se sont toujours révélés fructueux et formateurs. Pour cela, je tiens à leur témoigner ma gratitude et mon respect.

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Ammonia in the environment: From ancient times to the present

Cited by 315 publications

References 119 publications

Ice sheets and nitrogen

Ice sheets and nitrogen

Investigating the stomatal, cuticular and soil ammonia fluxes over a growing tritical crop under high acidic loads

Regional Modeling of Aerosol Chemical Composition at the Puy de Dôme (France)

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