Characteristics of Particulate Matter Emissions from Swine and Poultry Production Houses in the United States

2021 ◽  
Vol 64 (5) ◽  
pp. 1569-1579
Author(s):  
Fei Hu ◽  
Bin Cheng ◽  
Lingjuan Wang-Li
Keyword(s):  
Particulate Matter ◽  
Broiler Chicken ◽  
The United States ◽  
The Other ◽  
Emission Characteristics ◽  
List Type ◽  
Poultry Production ◽  
Emission Rates ◽  
Emission Data ◽  
Poultry Houses

HighlightsParticulate matter (PM) data were analyzed to identify PM emission characteristics among different animal types.The PM concentrations were higher in broiler chicken and swine farrowing houses and were higher in winter.The PM emissions were also higher in broiler chicken houses and swine farrowing rooms.The PM in the layer chicken house in Indiana had narrower distributions with a greater percentage of smaller particles.Abstract. Understanding the characteristics of particulate matter (PM) emissions from animal feeding operations (AFOs) is essential to address the associated health and environmental impacts and to develop control strategies to mitigate such impacts. This article reports a study of PM concentrations and emission characteristics from 26 poultry and swine production houses to investigate the similarities and differences in PM emission characteristics, e.g., concentrations, emission rates, and particle size distribution (PSD), among different animal and housing types. Concentration and emission data for PM2.5, PM10, and total suspended particulates (TSP) collected by the National Air Emission Monitoring Study (NAEMS) were used to compare the differences among different production practices and animal types. The PSDs of the PM were examined based on the PM2.5/PM10 and PM10/TSP emission rate ratios. It was discovered that the concentrations of PM varied among animal types. For poultry, the concentrations of PM were higher in broiler houses than in other poultry houses. For swine, the average concentrations of PM were higher in farrowing rooms than in swine barns. Moreover, the PM concentrations in poultry and swine houses exhibited significant seasonal trends, with higher concentrations in winter and lower concentrations in summer, which were in a reverse relationship with ventilation rates. The PM emissions also varied among animal types. For poultry, the PM emissions were significantly higher for poultry production houses in California. For swine, the PM emissions were significantly higher for farrowing rooms than other swine houses. The PSD of PM varied among animal types, with mass median diameters (MMD) in the ranges of 6.51 to 13.62 µm for poultry houses and 7.94 to 17.19 µm for swine houses. The geometric standard deviations (GSD) were in the ranges of 1.66 to 2.71 and 1.65 to 2.9 for poultry and swine PM, respectively. The PM in the layer house in Indiana had a narrower distribution (smaller GSD) with a greater percentage of smaller particles than the other poultry houses, while the PM in the broiler house in California had a broader distribution (larger GSD) than the other poultry houses. For swine, the PM in the sow barn in North Carolina had a narrower distribution (smaller GSD) than the other swine houses, while the PM in the farrowing houses in Oklahoma had a broader distribution (larger GSD) than the other swine houses. The knowledge gained from this research may provide insights for addressing the PM emissions from various animal production systems. Keywords: Concentration and emission, Particulate matter, PM2.5, PM10, Poultry, swine, PSD, TSP.

scholarly journals Dynamika światowej produkcji mięsa drobiowego w latach 1965 2016

2018 ◽  
Vol 18(33) (4) ◽  
pp. 473-480
Author(s):  
Katarzyna Utnik-Banaś
Keyword(s):  
United States ◽  
European Union ◽  
The United States ◽  
The Other ◽  
Poultry Meat ◽  
Poultry Production ◽  
World Production ◽  
The European Union ◽  
The World ◽  
High Dynamics

The production of poultry meat is characterized by high dynamics of growth. The world's largest producers of poultry meat include: USA, China and Brasil. The production of poultry meat in these three countries accounted for around 45% of world production in 2016. The other countries that counted in the world in poultry production were: Russia, India, Mexico, Japan and Poland. The largest increase in poultry production in 1965-2016 took place in Brazil and China. On the other hand, the share of the United States and the countries of the present European Union in percentage terms decreased. In Poland, the increase in poultry production in the analyzed period was over 25 times. Since 2014, Poland is the largest producer and exporter of poultry meat in the European Union.

scholarly journals Evaluation of a simplified model for estimating energy balance in broilers production housing

2007 ◽  
Vol 11 (5) ◽  
pp. 532-536 ◽  
Author(s):  
Mariano P. Silva ◽  
Fernando C. Baêta ◽  
Ilda F. F. Tinôco ◽  
Sérgio Zolnier ◽  
Aristides Ribeiro
Keyword(s):  
Thermal Behavior ◽  
Air Flow ◽  
The United States ◽  
Decision Makers ◽  
High Mass ◽  
Poultry Production ◽  
Heat Sources ◽  
Poultry House ◽  
Poultry Houses ◽  
Economical Feasibility

The simulation of poultry house thermal behavior with and without Adiabatic Evaporative Cooling (SRAE) allows the decision makers to evaluate the economical feasibility and the installation costs of a poultry production business. The first step in this research investigation was test the thermal behavior model developed by Gates et al. (1995) for broiler houses in the United States based on the hypothesis that this model, using climatized sheds, as proposed by the authors, could be used under Brazilian conditions. The model is suitable for the proposed objective in the form proposed by Gates et al. (1995) for poultry houses with an elevated mass air flow rate (120.8 kg air s-1 or higher). A correction factor referring to a series of heat sources not included in the model, or the inclusion of these sources, is necessary for poultry houses without a high mass air flow.

Particulate Matter Concentrations and Emission Rates at Two Retrofitted Manure-Belt Layer Houses

2021 ◽  
Vol 64 (3) ◽  
pp. 829-841
Author(s):  
Reyna M. Knight ◽  
Xinjie Tong ◽  
Lingying Zhao ◽  
Roderick B. Manuzon ◽  
Matthew J. Darr ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Ambient Temperature ◽  
Seasonal Variations ◽  
Egg Production ◽  
Ventilation Rate ◽  
Diurnal Variations ◽  
List Type ◽  
Emission Rates ◽  
Annual Average ◽  
Seasonal And Diurnal Variations

HighlightsAnnual average PM10 (daily) and PM2.5 (hourly) concentrations of 509 ±203 and 43.3 ±36.1 µg m-3, respectively.Significant seasonal and diurnal variations in PM concentrations; higher in colder seasons and during daytime.Annual average PM10 (daily) and PM2.5 (hourly) emission rates of 17.9 ±9.6 and 1.41 ±1.53 mg d-1 hen-1, respectively.Significant diurnal variations in PM emission rates but inconsistent seasonal variations; higher during daytime.Abstract. Particulate matter (PM) concentration and emission rate information is needed to assess air quality concerns and environmental impacts related to egg production. Many egg layer buildings were retrofitted from high-rise to manure-belt houses over the past few decades. However, no studies have reported these PM data for the retrofitted layer houses. In this study, concentrations and emission rates of PM10 and PM2.5 were continuously monitored for 12 months at two commercial retrofitted manure-belt layer houses in the Midwestern U.S. The average daily mean PM10 and average hourly mean PM2.5 concentrations in the houses were 509 ±203 µg m-3 and 43.3 ±36.1 µg m-3, respectively. Significant seasonal and diurnal variations in PM concentrations were observed, with higher concentrations in colder seasons and during daytime. The average daily mean PM10 and average hourly mean PM2.5 emission rates from the two houses were 17.9 ±9.6 mg d-1 hen-1 and 1.41 ±1.53 mg d-1 hen-1, respectively. There were no consistent patterns in seasonal variations. Significant diurnal variations were also observed for PM emission rates, with higher PM emission rates observed during daytime. The PM concentrations were significantly correlated with ambient temperature, ventilation rate, bird age, egg production, daily mortality, and feed conversion ratio, while PM emission rates were significantly correlated with ambient temperature, bird age, bird mass, egg mass, and ventilation rate. Keywords: Diurnal variation, Dust, Egg production, PM, Poultry, Seasonal variation.

Working With Interpreters to Support Students Who Are English Language Learners

2016 ◽  
Vol 1 (16) ◽  
pp. 15-27 ◽  
Author(s):  
Henriette W. Langdon ◽  
Terry Irvine Saenz
Keyword(s):  
United States ◽  
English Language Learners ◽  
Language Learners ◽  
English Language ◽  
First Language ◽  
The United States ◽  
The Other ◽  
Primary Language ◽  
Second Best ◽  
Support Students

The number of English Language Learners (ELL) is increasing in all regions of the United States. Although the majority (71%) speak Spanish as their first language, the other 29% may speak one of as many as 100 or more different languages. In spite of an increasing number of speech-language pathologists (SLPs) who can provide bilingual services, the likelihood of a match between a given student's primary language and an SLP's is rather minimal. The second best option is to work with a trained language interpreter in the student's language. However, very frequently, this interpreter may be bilingual but not trained to do the job.

From Scarcity to Abundance: Achieving Quality-Assured Mass Higher Education

2011 ◽  
Vol 15 (2) ◽  
Author(s):  
Peter P. Smith
Keyword(s):  
Higher Education ◽  
Knowledge Economy ◽  
Good Practice ◽  
The United States ◽  
The Other ◽  
Secondary System ◽  
Mass Higher Education ◽  
Post Secondary ◽  
One Year ◽  
The One

The United States is in a bind. On the one hand, we need millions of additional citizens with at least one year of successful post-secondary experience to adapt to the knowledge economy. Both the Gates and Lumina Foundations, and our President, have championed this goal in different ways. On the other hand, we have a post-secondary system that is trapped between rising costs and stagnant effectiveness, seemingly unable to respond effectively to this challenge. This paper analyzes several aspects of this problem, describes changes in the society that create the basis for solutions, and offers several examples from Kaplan University of emerging practice that suggests what good practice might look like in a world where quality-assured mass higher education is the norm.

Armed Violence in the Ideology of Contemporary Islamic Fundamentalism - Study models

2019 ◽  
Vol 2 (4) ◽  
pp. 237
Author(s):  
Laith Mzahim Khudair Kazem
Keyword(s):  
United States ◽  
United States Of America ◽  
The United States ◽  
The Other ◽  
Islamic Fundamentalism ◽  
Islamic Movements ◽  
Important Means ◽  
Armed Violence ◽  
Goals And Objectives ◽  
At Home

The armed violence of many radical Islamic movements is one of the most important means to achieve the goals and objectives of these movements. These movements have legitimized and legitimized these violent practices and constructed justification ideologies in order to justify their use for them both at home against governments or against the other Religiously, intellectually and even culturally, or abroad against countries that call them the term "unbelievers", especially the United States of America.

Leaded Aviation Fuel May Present Long-Term Effects on Campus Life from the Adjacent Albert Whitted Airport

2020 ◽  
Author(s):  
Joseph Matthews ◽  
Madhu Pandey
Keyword(s):  
United States ◽  
Particulate Matter ◽  
The United States ◽  
Aviation Fuel ◽  
University Campus ◽  
Long Term Effects ◽  
Aviation Gasoline ◽  
Suspended Particulate ◽  
Descent Line

Propeller planes and small engine aircraft around the United States, legally utilize leaded aviation gasoline. The purpose of this experiment was to collect suspended particulate matter from a university campus, directly below an airport’s arriving flight path’s descent line, and to analyze lead content suspended in the air. Two collection sets of three separate samples were collected on six separate days, one set in July of 2018 and the second set in January 2019.

Muslims, Islamic Law, and the Sociopolitical Reality in the United States

2000 ◽  
Vol 17 (2) ◽  
pp. 1-28
Author(s):  
Sherman A. Jackson
Keyword(s):  
Islamic Law ◽  
The United States ◽  
The Other ◽  
Double Consciousness ◽  
American Muslims ◽  
Way Of Life ◽  
Subjective Responses ◽  
Self Image ◽  
The One ◽  
Politics And Law

Native born African-American Muslims and the Immigrant Muslimcommunity foxms two important groups within the American Muslimcommunity. Whereas the sociopolitical reality is objectively the samefor both groups, their subjective responses are quite different. Both arevulnerable to a “double Consciousness,” i.e., an independently subjectiveconsciousness, as well as seeing oneself through the eyes of theother, thus reducing one’s self-image to an object of other’s contempt.Between the confines of culture, politics, and law on the one hand andthe “Islam as a way of life” on the other, Muslims must express theircultural genius and consciously discover linkages within the diverseMuslim community to avoid the threat of double consciousness.

Can India Balance China in Asia?

2017 ◽  
Author(s):  
Jonathan Holslag
Keyword(s):  
United States ◽  
Central Asia ◽  
Economic Reforms ◽  
The United States ◽  
The Other ◽  
Military Power ◽  
Regional Power ◽  
Political Fragmentation ◽  
Strong Interest ◽  
The One

The chapter argues that India has a strong interest to balance China and that the two Asian giants will not be able grow together without conflict. However, India will not be able to balance China’s rise. The chapter argues that India remains stuck between nonalignment and nonperformance. On the one hand, it resists the prospect of a new coalition that balances China from the maritime fringes of Eurasia, especially if that coalition is led by the United States. On the other hand, it has failed to strengthen its own capabilities. Its military power lags behind China’s, its efforts to reach out to both East and Central Asia have ended in disappointment, and its economic reforms have gone nowhere. As a result of that economic underachievement, India finds itself also torn between emotional nationalism and paralyzing political fragmentation, which, in turn, will further complicate its role as a regional power.

The Proximity of Other Skins

2019 ◽  
Author(s):  
Celine Parreñas Shimizu
Keyword(s):  
United States ◽  
South Korea ◽  
The United States ◽  
The Philippines ◽  
The Other ◽  
The West ◽  
Pain And Suffering ◽  
The Spectator ◽  
Existing Frames ◽  
The Voice

Transnational films representing intimacy and inequality disrupt and disgust Western spectators. When wounded bodies within poverty entangle with healthy wealthy bodies in sex, romance and care, fear and hatred combine with desire and fetishism. Works from the Philippines, South Korea, and independents from the United States and France may not be made for the West and may not make use of Hollywood traditions. Rather, they demand recognition for the knowledge they produce beyond our existing frames. They challenge us to go beyond passive consumption, or introspection of ourselves as spectators, for they represent new ways of world-making we cannot unsee, unhear, or unfeel. The spectator is redirected to go beyond the rapture of consuming the other to the rupture that arises from witnessing pain and suffering. Self-displacement is what proximity to intimate inequality in cinema ultimately compels and demands so as to establish an ethical way of relating to others. In undoing the spectator, the voice of the transnational filmmaker emerges. Not only do we need to listen to filmmakers from outside Hollywood who unflinchingly engage the inexpressibility of difference, we need to make room for critics and theorists who prioritize the subjectivities of others. When the demographics of filmmakers and film scholars are not as diverse as its spectators, films narrow our worldviews. To recognize our culpability in the denigration of others unleashes the power of cinema. The unbearability of stories we don’t want to watch and don’t want to feel must be borne.

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