Exposure assessment to airborne endotoxin, dust, ammonia, hydrogen sulfide and carbon dioxide in open style swine houses

Chang, Ching‐Wen; Chung, Hyen-Mi; Huang, Chin-Feng; Su, Huey‐Jen

doi:10.1016/s0003-4878(00)00081-8

Cited by 64 publications

(53 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…According to CHANG et al (2001) and as observed in this study, gas concentrations are low in open swine facilities, which are characteristic of tropical regions.…”

Section: Floor ---------------------Gases (Ppm)---------------------supporting

confidence: 67%

Acoustic Environment and Gas Production in Different Growing-Finishing Swine Facilities

et al. 2016

View full text Add to dashboard Cite

This study aimed to evaluate gas levels and the acoustic environment (noise) of growing-finishing swine in different facilities, one composed of shallow pool (SP) and another of partially slatted floor (PSF). Sensors and a sound level meter were used to measure gas concentrations (CO2 and NH3) and noise at 1.50 meters above the ground and at animal height. Data on gas concentrations and noise levels were measured at 9am, 12pm, and 3 pm. Results showed differences (P<0.05) between noise levels at animal height and gas concentrations measured in relation to stall type and data collection time. The highest noise values were found in the shallow pool stall, measured at animal level. The highest NH3 (13 ppm) and CO2 (1174.5 ppm) values were observed in the shallow pool stall at 3pm. The stall floor with shallow pool seems to provide greater welfare in relation to noise level for growing-finishing swine.

show abstract

“…According to CHANG et al (2001) and as observed in this study, gas concentrations are low in open swine facilities, which are characteristic of tropical regions.…”

Section: Floor ---------------------Gases (Ppm)---------------------supporting

confidence: 67%

Acoustic Environment and Gas Production in Different Growing-Finishing Swine Facilities

et al. 2016

View full text Add to dashboard Cite

show abstract

“…For example, open-air swine houses generally have lower levels of airborne dust, endotoxins, NH 3 , carbon dioxide (CO 2 ), H 2 S, and microorganisms than do enclosed buildings, although the benefits of open-air houses may be compromised by irregular cleaning, the accumulation of water, and poor waste separation. 4,10 Swine confinement buildings that are equipped with systems that separate solid and liquid manure have better air quality than conventional systems without such separation. 9 Workers who manually feed nursery pigs suffer from high exposure to airborne bacteria, odors, and H 2 S. 3,[11][12][13] Similarly, the size distribution and concentrations of particulates in swine buildings are affected by the degree of animal activity, ventilation, bedding materials, and floor type.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Microbial Aerosols Released from Chicken and Swine Feces

Chien

Chen

Lin

et al. 2011

Journal of the Air & Waste Management Association

View full text Add to dashboard Cite

Bioaerosols generated during livestock and poultry production are significant occupational hazards. This study investigates the characteristics of bioaerosols released from animal feces. Fresh feces from pigs and chickens were obtained and tested in a controlled-environment facility. Airborne viable (culturable) bacteria and fungi were sampled hourly for 48 hr. The predominant species were identified via polymerase chain reaction analysis. The number of bacterial colonies released from chicken feces increased gradually, peaked at approximately 20 hr, and remained relatively constant to test end; however, the bacterial colonies released from swine feces did not increase significantly. The chicken feces released significantly (P Ͻ 0.05) more bacterial aerosols than swine feces over 40 hr, by approximately 1 order of magnitude. However, the difference in total fungal aerosols released from the two feces types was relatively small (30 -40%) and insignificant (P Ͼ 0.05). Aerosols sized between approximately 0.65 and 1

show abstract

“…As concentrações de poeira foram mais altas nos galpões de creche, em comparação com os galpões de maternidade (Tabela 3). Resultado que também foi relatado por outros pesquisadores, que estudaram condições de ambiente aéreo em suinocultura (SAMPAIO et al, 2007;CHANG et al, 2001;GUINGAND, 1999). Esses valores podem ser justificados pela densidade populacional e pelas características construtivas do galpão, pois os galpões de creche são mais fechados e com pouca circulação de ar, também pelo tipo de manejo e pela atividade dos animais.…”

Section: Resultsunclassified

Ambiência aérea em maternidade e creche de suínos

Silveira¹,

Nääs

Moura

et al. 2009

Eng. Agríc.

View full text Add to dashboard Cite

RESUMO:A suinocultura brasileira é uma atividade importante para o agronegócio do País. Embora o uso de tecnologia nos vários segmentos dessa atividade envolva a substituição do trabalho humano pela automatização de tarefas, o uso da mão de obra humana ainda é significativo. O trabalhador no setor suinícola está exposto a uma série de fatores de risco na execução de suas atividades, dentre os quais a exposição a gases nocivos. O presente trabalho teve por objetivo avaliar a qualidade do ar em instalações de maternidade e creche suinícolas, em duas granjas, com diferentes características (G1 e G2). Para tanto, foram avaliadas concentração de gases (NH 3 , CO 2 e CO) e poeira respirável durante o período de atividades dos trabalhadores. As concentrações dos gases avaliados estiveram dentro dos limites recomendados pela NR-15 (1978) e ACGIH (2001. O gás que apresentou maior concentração foi NH 3 no galpão de creche, que atingiu a concentração de 10 ppm, não ultrapassando os limites recomendados. As concentrações de poeira respirável mantiveram-se dentro dos limites estabelecidos pelas normas ACGIH (2001), NR-15 (1978) e NIOSH (1994), não havendo diferença significativa entre os galpões avaliados. PALAVRAS-CHAVE: suinocultura, ambiente aéreo, trabalhador. AERIAL ENVIRONMENT IN FARROWING AND SWINE NURSERYABSTRACT: Brazilian swine production is an important activity for the agribusiness, and even though the use of technology in various segments of this activity allowed mechanization of processes, intensive labor is still needed. Swine worker is exposed to several risk factors during their activities, among them the exposition to noxious gases. The present research had as general objective to evaluate gases concentration (NH 3 , CO, CO 2 ) and wind speed during the workers activities. It was found that the gases concentration (NH 3 , CO, CO 2 ) are within the limits recommended by NR15 (1978) and CGIH (2001). Gases concentration values found were low besides ammonia concentration found in G1 farms inside the nursing housing during the morning (10 ppm) that is within the recommended value. Inhalable dust concentration values found were within the limits established by the norms ACGIH (2001), NR-15 (1978) and NIOSH (1994) in both houses, and there was not statistical significance between them.

show abstract

Exposure assessment to airborne endotoxin, dust, ammonia, hydrogen sulfide and carbon dioxide in open style swine houses

Cited by 64 publications

References 22 publications

Acoustic Environment and Gas Production in Different Growing-Finishing Swine Facilities

Acoustic Environment and Gas Production in Different Growing-Finishing Swine Facilities

Characteristics of Microbial Aerosols Released from Chicken and Swine Feces

Ambiência aérea em maternidade e creche de suínos

Contact Info

Product

Resources

About