ZAPLETAL, Miloš and Pavel MIKUŠKA. Ammonia emissions and dry deposition in the vicinity of dairy farms. Atmósfera. vol. 32, No 4, p. 337-350. ISSN 0187-6236. doi:10.20937/ATM.2019.32.04.06. 2019.
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Basic information
Original name Ammonia emissions and dry deposition in the vicinity of dairy farms
Authors ZAPLETAL, Miloš (203 Czech Republic, guarantor, belonging to the institution) and Pavel MIKUŠKA (203 Czech Republic).
Edition Atmósfera, 2019, 0187-6236.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10511 Environmental sciences
Country of publisher Mexico
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/47813059:19240/19:A0000538
Organization unit Faculty of Philosophy and Science in Opava
Doi http://dx.doi.org/10.20937/ATM.2019.32.04.06
UT WoS 000510833800006
Keywords in English emission rates; moisture (H2O) balance; ammonia; stomatal uptake; dry deposition; resistance model
Tags , RIVOK
Tags International impact, Reviewed
Changed by Changed by: RNDr. Jan Hladík, Ph.D., učo 25379. Changed: 22/3/2020 06:35.
Abstract
We conducted the first research in the Czech Republic to measure ventilation and ammonia (NH_3) emission rates in a naturally ventilated animal building (dairy farm) during a five-day measurement period in June, combined with a three-month (May-July) monitoring of NH_3 concentration and dry deposition at 12 locations along horizontal gradients from the daily farm up to the distance of 400 m. Passive diffusion-tube samplers were used to measure monthly NH3 concentrations. Moisture (H_2O) balance was used to determine ventilation rates of the daily farm. Continuous measurements of gas concentrations (NH_3), temperature and relative humidity inside and outside the building were performed. The air exchange rate was 4.8 h^(-1) and the emission rate was 43.2 NH_3 g cow^(-1) d^(-1) for building. The emission rate was 126% of what was obtained using emission factors from the Czech national inventory (34.2 g cow^(-1) d^(-1)). NH3 concentrations and thy deposition fluxes decreased exponentially with distance from the dairy farm. Between May and July, mean predicted thy deposition fluxes ranged from 0.28 to 0.03 mu g NH_3 m^(-2)s^(-1) at a distance of 50 and 400 m from the source, respectively. Dry NH_3 deposition over the nearest 400 m from the source accounted for 11.5% of daily emissions. The results confirm the short-range dispersion of NH_3 emitted from a point source found in other studies, but it may not be the same in other situations, since dispersion of NH_3 is dependent on the surrounding land-cover and on the number of animals in a barn.
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