Preliminary validation of ammonia emission data using a combination of monitoring and modelling

Aben, Jan; Heuberger, P.S.C.; Acharya, R.C.; Dekkers, Arnold

doi:10.1016/s0166-1116(06)80275-x

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…This has to do with the monthly variation in concentration, with a clear early spring maximum due to the regulations that does not allow manure application in winter. Study of the phenomenology of the ammonia concentrations lead to insight in the emissions, transport in conversion processes needed for a thorough understanding of the behaviour of ammonia and its effects (e.g., Aben et al, 1995;Erisman and Bleeker, 1997;Buijsman et al, 1998).…”

Section: Ammonia Networkmentioning

confidence: 99%

Instrument development and application in studies and monitoring of ambient ammonia

Erisman

2001

Atmospheric Environment

185

108

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During recent years, it has become clear that ammonia is an important gas in relation to di!erent environmental issues, such as acidi"cation, eutrophication, human health and climate change (through particle formation). Therefore, there is a growing need to develop and apply instrumentation suitable for research into emission, dispersion, conversion and deposition of ammonia and ammonium. Recently, several instruments were developed suitable for measuring concentrations in ambient conditions even at very low levels, such as ammonia sensors suitable for monitoring and research, deposition measuring systems and aerosol samplers for on-line measurement of aerosol composition. These instruments have been tested and applied in a number of "eld studies. These studies include dry deposition measurements, ammonium nitrate studies in relation to the (in)direct aerosol e!ect, emission studies and policy evaluation with concentration and deposition monitoring data. The policy evaluation study showed that the measures to reduce ammonia emissions were not as successful as projected beforehand by statistical studies.

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Section: Ammonia Networkmentioning

confidence: 99%

Instrument development and application in studies and monitoring of ambient ammonia

Erisman

2001

Atmospheric Environment

185

108

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“…The large number of measuring sites needed to obtain a emissions from animal husbandry.2 At a sub-national scale representative picture of ammonia concentrations in a certain area averaged emissions vary considerably. 3,4 The deposition area makes passive samplers the ideal instrument to do the velocity of ammonia is large.5,6 The combination of a large job. A number of both tube-type and badge-type passive variation in emission density, emissions close to the surface samplers for measuring ammonia were developed and are and a large deposition velocity will give rise to very local summarised by CEN.…”

Section: Introductionmentioning

confidence: 99%

Field intercomparison of diffusive samplers for measuring ammonia

Kirchner¹,

Braeutigam²,

Ferm³

et al. 1999

J. Environ. Monitor.

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Agricultural production systems are recognised as a major source of atmospheric ammonia. Deposition of ammonia and ammonium may contribute to undesired changes in oligotrophic ecosystems. The continuous measurement of atmospheric ammonia requires expensive and sophisticated techniques and is performed only in a very restrict number of ambient air stations in Europe. Therefore, the application of passive samplers, which have the advantage of being easy to handle and cost-efficient, is useful. In the past the comparability of different passive samplers must be considered as rather scarce. In a joint European project under the leadership of the GSF-Forschungszentrum für Umwelt und Gesundheit, Neuherberg, in 1997 a comparison of different passive ammonia monitoring methods was carried out in a prealpine rural site near Garmisch-Partenkirchen. It was considered valuable to include not only well established systems but also methods still being developed. For the comparative test ten working groups with different methods took part. A wet annular denuder system, which has been developed by the Netherlands Energy Research Foundation for on-line measurement of atmospheric ammonia, served as reference of passive methods. The experiment, which started in June and finished in December, showed that most of the passive samplers fulfil the requirements and can be recommended for further measurements. Additional measurements of meteorological parameters were performed to check the influences of different weather conditions on passive sampling.

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“…Continuous flow denuders have been developed with on‐line analysis of ammonia (e.g., Andersen Instruments, http://www.anderseninstruments.com; Mechatronics, http://www.mechatronics.nl) that are suitable for network monitoring [ Erisman et al , 2001; Mennen et al , 1996]. These devices have been successfully deployed for routine monitoring of ammonia [ Buijsman et al , 1998; Erisman et al , 1998; Erisman and Bleeker , 1997; Aben et al , 1995]. In addition, catalytic converter methods employing chemiluminescence detection are commercially available (Thermo Environmental Instruments, Model 17C Chemiluminescent Ambient Ammonia Analyzer, http://www.thermoei.com) that show promise for the measurement of ammonia in the atmosphere [cf.…”

Section: Introductionmentioning

confidence: 99%

Results from an informal intercomparison of ammonia measurement techniques

et al. 2002

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[1] NH 3 measurements made using a chemical ionization mass spectrometry (CIMS) method and a molybdenum-oxide, converter-difference (MoO x -CD) approach were compared with those made using the citric acid denuder method. The citric acid denuder, which has fared well in a variety of other evaluations, was used as the benchmark method in the current intercomparison. A very high degree of correlation, r 2 > 0.9, between the three ammonia measurement techniques was found. For ammonia mixing ratios greater than approximately 100 pptv, the denuder method and the CIMS technique were found to agree to within about 20%. However, the MoO x -CD measurement results were larger by approximately 70% than the denuder measurements. For our measurements, we conclude that the MoO x -CD method measured the sum of gas-phase NH 3 collected by the denuder tube and aerosol ammonium (NH 4 + ) that was simultaneously collected on Teflon filters. The methods and the comparison along with the results of the ancillary measurements are described.

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Preliminary validation of ammonia emission data using a combination of monitoring and modelling

Cited by 4 publications

References 3 publications

Instrument development and application in studies and monitoring of ambient ammonia

Instrument development and application in studies and monitoring of ambient ammonia

Field intercomparison of diffusive samplers for measuring ammonia

Results from an informal intercomparison of ammonia measurement techniques

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