Ammonia emissions and dry deposition in the vicinity of dairy farms

@article{37440,
   author = {Zapletal, Miloš and Mikuška, Pavel},
   article_number = {4},
   doi = {http://dx.doi.org/10.20937/ATM.2019.32.04.06},
   keywords = {emission rates; moisture (H2O) balance; ammonia; stomatal uptake; dry deposition; resistance model},
   language = {eng},
   issn = {0187-6236},
   journal = {Atmósfera},
   title = {Ammonia emissions and dry deposition in the vicinity of dairy farms},
   url = {https://www.revistascca.unam.mx/atm/index.php/atm/article/view/ATM.2019.32.04.06/46657},
   volume = {32},
   year = {2019}
}

TY  - JOUR
ID  - 37440
AU  - Zapletal, Miloš - Mikuška, Pavel
PY  - 2019
TI  - Ammonia emissions and dry deposition in the vicinity of dairy farms
JF  - Atmósfera
VL  - 32
IS  - 4
SP  - 337-350
EP  - 337-350
SN  - 01876236
KW  - emission rates
KW  - moisture (H2O) balance
KW  - ammonia
KW  - stomatal uptake
KW  - dry deposition
KW  - resistance model
UR  - https://www.revistascca.unam.mx/atm/index.php/atm/article/view/ATM.2019.32.04.06/46657
L2  - https://www.revistascca.unam.mx/atm/index.php/atm/article/view/ATM.2019.32.04.06/46657
N2  - 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.
ER  - 

ZAPLETAL, Miloš a Pavel MIKUŠKA. Ammonia emissions and dry deposition in the vicinity of dairy farms. \textit{Atmósfera}. 2019, roč.~32, č.~4, s.~337-350. ISSN~0187-6236. Dostupné z: https://dx.doi.org/10.20937/ATM.2019.32.04.06.