Articles | Volume 16, issue 5
https://doi.org/10.5194/amt-16-1295-2023
https://doi.org/10.5194/amt-16-1295-2023
Research article
 | 
10 Mar 2023
Research article |  | 10 Mar 2023

Evaluation of open- and closed-path sampling systems for the determination of emission rates of NH3 and CH4 with inverse dispersion modeling

Yolanda Maria Lemes, Christoph Häni, Jesper Nørlem Kamp, and Anders Feilberg

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Cited articles

Aneja, V. P., Schlesinger, W. H., and Erisman, J. W.: Effects of Agriculture upon the Air Quality and Climate: Research, Policy, and Regulations, Environ. Sci. Technol., 43, 4234–4240, https://doi.org/10.1021/es8024403, 2009. 
Bai, M., Loh, Z., Griffith, D. W. T., Turner, D., Eckard, R., Edis, R., Denmead, O. T., Bryant, G. W., Paton-Walsh, C., Tonini, M., McGinn, S. M., and Chen, D.: Performance of open-path lasers and Fourier transform infrared spectroscopic systems in agriculture emissions research, Atmos. Meas. Tech., 15, 3593–3610, https://doi.org/10.5194/amt-15-3593-2022, 2022. 
Baldé, H., VanderZaag, A. C., Burtt, S., Evans, L., Wagner-Riddle, C., Desjardins, R. L., and MacDonald, J. D.: Measured versus modeled methane emissions from separated liquid dairy manure show large model underestimates, Agr. Ecosyst. Environ., 230, 261–270, https://doi.org/10.1016/j.agee.2016.06.016, 2016a. 
Baldé, H., VanderZaag, A. C., Burtt, S. D., Wagner-Riddle, C., Crolla, A., Desjardins, R. L., and MacDonald, D. J.: Methane emissions from digestate at an agricultural biogas plant, Bioresource Technol., 216, 914–922, https://doi.org/10.1016/j.biortech.2016.06.031, 2016b. 
Baldé, H., VanderZaag, A. C., Burtt, S. D., Wagner-Riddle, C., Evans, L., Gordon, R., Desjardins, R. L., and MacDonald, J. D.: Ammonia emissions from liquid manure storages are affected by anaerobic digestion and solid-liquid separation, Agr. Forest Meteorol., 258, 80–88, https://doi.org/10.1016/j.agrformet.2018.01.036, 2018. 
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Short summary
The implementation of a new method, line-averaged concentration measurement with a closed-path analyzer, will enable the measurement of fluxes of multiple gases from different types of sources and will evaluate the effects of mitigation strategies on emissions. In addition, this method allows for continuous online measurements that resolve temporal variation in ammonia emissions and the peak emissions of methane.
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