Analysis of the effect of air temperature on ammonia emission from band application of slurry

Pedersen, Johanna; Nyord, Tavs; Feilberg, Anders; Labouriau, Rodrigo

doi:10.1016/j.envpol.2021.117055

Cited by 25 publications

(5 citation statements)

References 41 publications

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“…To be specific, NHx concentration increased from 15 μg m -3 at air temperature below 10 °C to more than 30 μg m -3 at temperatures higher than 20 °C, suggesting a promotion effect of higher temperature to NH3 emission and NHx concentration in surface. Similar phenomena of a strong relationship between temperature and ammonia emission has also been proved by previous laboratory experiments (Clay et al, 1990;Pedersen et al, 2021;Niraula et al, 2018). Overall, the model with met-dependant mechanism well tracked the NHx variation trends in observation period, and remarkably improved NHx simulations with the MB decreasing from -9.5 to 0.7 μg m -3 in NHx As the precursor gas, the performance of NH3 simulation directly affects the formation of simulated secondary inorganic aerosols like NO3 -.…”

Section: Improved Simulation Of Ammonia and Secondary Inorganic Aeros...supporting

confidence: 82%

“…Temperature is the most important meteorological parameter that affects the partial pressure of NH3 in soil by changing the equilibrium constant of the NH4 + (soil)-NH3(soil)-NH3(gas) equilibrium reaction. Several studies have noted an increase in emission from N fertilizers and livestock waste with increasing temperature, and revealed the empirical volatilization rates as functions of air temperatures (Sommer et al, 1991;Pedersen et al, 2021). Mcinnes et al (1986) reported that diurnal patterns of NH3 loss coincided with fluctuations in soil temperature and water content.…”

Section: Soil Temperaturementioning

confidence: 99%

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A dynamic ammonia emission model and the online coupling with WRF-Chem (WRF-SoilN-Chem v1.0): development and evaluation

Ren

Huang²,

Liu³

et al. 2022

Preprint

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Abstract. Volatilization of ammonia (NH3) from fertilizer application and livestock wastes is an overwhelmingly important pathway of nitrogen losses in agricultural ecosystems and constitutes the largest source of atmospheric NH3. The volatilization of NH3 highly depends on environmental and meteorological conditions, however, this phenomenon is poorly described in current emission inventory and atmospheric models. Here, we develop a dynamic NH3 emission model capable of calculating NH3 emission rate interactively with time- and spatial-varying meteorological and soil conditions. The NH3 flux parameterization relies on several meteorological factors and anthropogenic activity including fertilizer application, livestock waste, traffic, residential and industrial sectors. The model is then embedded into a regional WRF-Chem model and is evaluated against field measurements of NH3 concentrations and emission flux, and satellite retrievals of column loading. The evaluation shows a substantial improvement in the model performance of NH3 flux and ambient concentration in China. The model well represents the spatial and temporal variations of ambient NH3 concentration, indicating the highest emission in the North China Plain (NCP) and Sichuan Basin, especially during summertime. Compared with normal simulations using fixed emission inventory input, this model features superior capability in simulating NH3 emission flux and concentration during drastic weather changes like frontal activities and precipitation. Such advances in emission quantification also improve the model performance of secondary inorganic aerosol on synoptic scales. While more laboratory and field measurements are still needed for better parameterization of NH3 volatilization, the seamless coupling of soil emission with meteorology provides a better understanding of NH3 emission evolution and its contribution to atmospheric chemistry.

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Section: Improved Simulation Of Ammonia and Secondary Inorganic Aeros...supporting

confidence: 82%

Section: Soil Temperaturementioning

confidence: 99%

A dynamic ammonia emission model and the online coupling with WRF-Chem (WRF-SoilN-Chem v1.0): development and evaluation

Ren

Huang²,

Liu³

et al. 2022

Preprint

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“…There have been many studies that have shown a correlation between ammonia concentration and temperature. Pederson et al (2021) found that if the ground was moist, there was a positive correlation between ambient temperature and ammonia emissions [77]. Wang et al (2020) also found a positive correlation between ammonia concentration and ambient temperatures in urban areas, leading to particularly high ammonia concentrations during summer [78].…”

Section: Correlation Between Ammonia Concentration and Temperaturementioning

confidence: 99%

“…As vegetation emits very small amounts of ammonia, increased emissions seen during the spring are more likely to be linked to agricultural operations such as premature fertilizer application or seasonal variations in cattle feed availability and the accompanying emissions [72,73]. Furthermore, several studies have confirmed that in livestock areas, the ammonia concentration in summer is nearly double the concentration in winter [74][75][76][77].…”

Section: Spatial Distribution Of Ammonia Concentrationmentioning

confidence: 99%

Seasonal and Spatial Variations of Atmospheric Ammonia in the Urban and Suburban Environments of Seoul, Korea

et al. 2021

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Atmospheric ammonia is a significant pollutant throughout the year, necessitating standardized measurement and identification of emission factors. We performed a quantized evaluation of ammonia concentrations at various locations in and around Seoul, South Korea. The established testing methods of the Radiello Passive Sampler were used for ammonia sampling, and the method was validated using annular denuder sampling. Urban and suburban areas were studied to gain a deeper understanding of the factors responsible for ammonia pollution. This study aimed to establish the fluctuations in concentration over one year, by analyzing the seasonal and regional variation in ammonia concentration. Livestock and agricultural areas recorded the highest concentration of ammonia among all sites, with the highest concentration recorded in autumn. However, at most of the other studied sites, the highest and lowest ammonia concentrations were recorded during summer and winter, respectively. This study attempted to establish a correlation between ammonia concentration and temperature, as well as ammonia concentration and altitude.

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“…A strong correlation between ambient air temperature and ammonia emissions has been found in the temperature range from 5 to 14 • C. As the ambient temperature rises, crust formation on the manure surface intensifies. Due to the crust formed on the manure surface, the intensity of ammonia emission from manure decreases [23]. In order to obtain reliable data on gaseous emissions from manure, the processes affecting the intensity of NH 3 emissions must be accurately described [24,25].…”

Section: Introductionmentioning

confidence: 99%

Ammonia Emissions from Cattle Manure under Variable Moisture Exchange between the Manure and the Environment

Bleizgys

Naujokienė

2023

Agronomy

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When reducing ammonia emissions from cowsheds, it is recommended to reduce the ventilation intensity, air temperature in the barn, manure moisture by using bedding and manure-contaminated surfaces, and to prevent urine from accumulating in the airways. Using the mass flow method in the wind tunnel, after research on seven types of cattle manure with different moisture contents, it was found that ammonia evaporates up to 3.9 times more intensively from liquid manure than from solid manure. There is a strong correlation between ammonia and water evaporation from manure. Ammonia emission from liquid manure decrease by 2.0–2.3 times, emissions from solid manure decrease by 1.9–2.1 times. Different cowsheds have different opportunities to reduce air pollution and conditions for manure to dry and crusts to form on the surface. The best results will be achieved by applying complex measures to reduce air pollution.

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Analysis of the effect of air temperature on ammonia emission from band application of slurry

Cited by 25 publications

References 41 publications

A dynamic ammonia emission model and the online coupling with WRF-Chem (WRF-SoilN-Chem v1.0): development and evaluation

A dynamic ammonia emission model and the online coupling with WRF-Chem (WRF-SoilN-Chem v1.0): development and evaluation

Seasonal and Spatial Variations of Atmospheric Ammonia in the Urban and Suburban Environments of Seoul, Korea

Ammonia Emissions from Cattle Manure under Variable Moisture Exchange between the Manure and the Environment

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