¿what is the range for nitrogen dioxide inside a poultry house?
Best insight from top research papers
The range for nitrogen dioxide (NO2) concentrations inside a poultry house varies significantly based on different studies. In one study, the concentrations of NO2 ranged between 9.82 and 25.00 mg/m^3, with an average distribution approximately three times higher than that of ammonia (NH3) in all divisions of the poultry house . Another study highlighted that the highest emissions of N2O, a related gas, were found in poultry housing systems with liquid manure, influenced by factors like manure removal frequency and dry matter content . Additionally, intensive poultry production can lead to increased concentrations of NH3, H2S, and CH4 inside the poultry house due to the accumulation of fecal material, impacting air quality . High concentrations of airborne microorganisms, including pathogens like Salmonella and Escherichia, were also detected in poultry houses, posing health risks to both employees and animals .
Answers from top 5 papers
More filters
| Papers (5) | Insight |
|---|---|
76 Citations | Nitrogen dioxide levels were below the limit of detection in the poultry confinement buildings, as indicated by the data from the abstract. Thus, the range was not specified. |
| Not addressed in the paper. | |
Open access•Journal Article | Not addressed in the paper. |
| Not addressed in the paper. | |
| The range for Nitrous Oxide (NO2) inside a poultry house is between 9.82 and 25.00 mg/m3, as indicated by the study on air quality evaluation in a confined poultry house. |
Related Questions
Is nitrogen present in poultry litter?4 answersNitrogen is indeed present in poultry litter, as indicated by various studies. However, the availability of nitrogen for plant uptake from carbonized poultry litter is limited, as the nutrient is not readily accessible to plants. Different pre-treatment strategies have been explored to enhance the economic value of poultry litter, including the extraction of ammonium nitrogen for use as fertilizer. Additionally, untreated broiler litter has been shown to provide high levels of mineralized nitrogen, with significant amounts of ammonium and nitrate being accumulated in the soil after application. These findings collectively highlight the presence of nitrogen in poultry litter but also underscore the importance of understanding its availability and dynamics for effective utilization in various applications.
What is the evidence that ammonia concentrations is higher during the night in commerical broiler houses?7 answersThe evidence indicating that ammonia (NH3) concentrations are higher during the night in commercial broiler houses can be inferred from various studies that have analyzed factors such as ventilation rates, temperature, and the microclimate within broiler houses, which collectively influence NH3 concentrations.
Firstly, the ventilation system plays a crucial role in determining NH3 concentrations inside broiler houses. During the night, lower outside temperatures can lead to reduced ventilation rates to maintain thermal comfort for the birds. This reduction in ventilation can result in less NH3 being removed from the house, potentially leading to higher NH3 concentrations. Studies have shown that when tunnel ventilation, which is often used to manage air quality and temperature inside broiler houses, was the primary system, NH3 concentrations decreased with increasing distance from the litter surface. However, with lower outside temperatures and little ventilation, indicative of night-time conditions, no concentration gradient was evident, suggesting higher concentrations of NH3 closer to the litter surface.
Moreover, the microclimate established inside the house, influenced by air temperature, humidity, and velocity, directly impacts gas production and emissions. The internal house environment, which can vary significantly between day and night, affects NH3 concentrations. Additionally, the dynamic relationships between NH3 concentrations and influencing factors such as ventilation rate, outdoor temperature, and outdoor relative humidity have been studied. These factors have lagged effects on indoor NH3 concentrations, with different impacts observed between summer and winter, further complicating the understanding of NH3 dynamics. In winter, changes in ventilation rates within low operational ranges were not high enough to induce changes in NH3 concentrations, which could imply higher concentrations during colder nights when ventilation is minimized to conserve heat.
In summary, evidence suggests that NH3 concentrations are likely higher during the night in commercial broiler houses due to reduced ventilation rates and the resulting accumulation of NH3, as well as the complex interplay of house microclimate factors that vary between day and night.
¿what is the range for carbon dioxide inside a poultry house?5 answersThe range for carbon dioxide (CO2) concentrations inside a poultry house can vary based on different factors such as ventilation rates, age of the chickens, and season. Studies have shown that CO2 levels in poultry houses can range from 550 ppm to 900 ppm in closed environments, with variations observed over different fattening periods and environmental conditions. Additionally, the production of CO2 from bird respiration and heaters, as well as the impact of ventilation rates on CO2 emissions, play crucial roles in determining the overall CO2 levels within the poultry house. Monitoring and maintaining optimal CO2 levels are essential for ensuring good air quality, animal health, and productivity in poultry farming operations.
¿what is the range for ppm of CO2 inside a poultry house?5 answersThe range for CO2 concentrations inside a poultry house varies based on different factors such as the age of the animals, season, and ventilation rates. Studies have shown that CO2 levels in poultry houses can range from as low as 975.36 mg.m-3 to as high as 9948.78 mg.m-3, with no significant differences between periods. Additionally, CO2 emissions from chicken housing can reach levels ranging between 120 and 459 kg/h, with the highest emissions occurring towards the end of the grow-out period. Furthermore, research indicates that concentrations of CO2 can go up to 1805.57 ppm in certain types of poultry buildings, with variations observed across different seasons. Therefore, the ppm range of CO2 inside a poultry house can fluctuate significantly depending on various factors like animal age, season, and ventilation rates.
Ammonia emissions from livestock and poultry5 answersAmmonia emissions from livestock and poultry have significant impacts on the environment, air quality, and human health. The intensive rearing of poultry and pigs in modern intensive agriculture has led to the implementation of protocols and regulations to reduce these emissions. Livestock, including poultry, is a major contributor to global ammonia emissions, with about 85% of anthropogenic emissions related to food and feed production. The ammonia emission levels and distribution characteristics vary depending on factors such as temperature, ventilation, and manure management. Agricultural activities, including livestock production, contribute to global ammonia emissions, with cattle, rice, maize, and wheat being major sources. Climate change is expected to increase ammonia emissions from poultry farming due to the influence of meteorological factors. Overall, reducing ammonia emissions from livestock and poultry is crucial for mitigating their negative impacts on the environment and human health.
Greenhouse gas emission from poultry and pigs?5 answersGreenhouse gas emissions from poultry and pig production have been studied in various countries. In China, the emissions from these sectors have increased over the years, but the emissions per unit of production have decreased due to improved efficiency. In South Korea, the emissions from poultry and pig production have varied over the last 10 years, with different trends observed for different species and stages of production. In the United States, animal agriculture is a significant contributor to greenhouse gas emissions, with enteric fermentation and manure management being the main sources of methane emissions from poultry and swine production. In a study conducted at Michigan State University, it was found that poultry operations had lower methane emissions but higher nitrous oxide emissions compared to ruminant operations. In South Africa, the non-ruminant livestock industries, including pigs and poultry, contribute to greenhouse gas emissions, with the poultry industry being the largest direct producer of nitrous oxide.