Sulfuric odorous compounds emitted from pig-feeding operations |
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| Institution: | 1. Institute of Environmental and Industrial Medicine, Hanyang University, Seoul 133-791, Republic of Korea;2. Graduate School of Agriculture, Kyoto University, Kyoto, Japan;3. Ilsan International Hospital, Dongguk University, Goyang, Gyeonggi, Republic of Korea;4. Institute for Occupational Health, College of Medicine, Yonsei University, Seoul, Republic of Korea;1. Silesian University of Technology, Gliwice, Poland;2. Ekoinwentyka Ltd., Ruda Slaska, Poland;3. Warsaw University of Technology - Plock Branch, Plock, Poland;4. University of Silesia, Katowice, Poland;1. College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China;2. Department of Biotechnology, Amicable Knowledge Solution University, Satna, India;1. Chemical Resource Beneficiation, North-West University, Potchefstroom, South Africa;2. Finnish Meteorological Institute, Atmospheric Composition Unit, P.O. Box 503, 00101 Helsinki, Finland;1. Research group Air Quality Engineering, Department of Engineering, Aarhus University, Hangøvej 2, 8200 Aarhus N, Denmark;2. Research group EnVOC, Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure links 653, 9000 Ghent, Belgium;1. Department of Earth & Atmospheric Sciences, University of Alberta, Edmonton, Alberta, Canada;2. Agriculture and Agri-Food Canada, Lacombe, Alberta, Canada;3. Alberta Agriculture and Rural Development, Lacombe, Alberta, Canada;1. Technical University of Lodz, Institute of Fermentation Technology and Microbiology, Wólczańska 171/173, 90-924 Łódź, Poland;2. Adam Mickiewicz University, Department of Chemistry, Laboratory of Microbiocides Chemistry, Grunwaldzka 6, 60-780 Poznań, Poland |
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| Abstract: | The objective of the study was to quantify the concentration and emission levels of sulfuric odorous compounds emitted from pig-feeding operations. Five types of pig-housing rooms were studied: gestation, farrowing, nursery, growing and fattening rooms. The concentration range of sulfuric odorous compounds in these pig-housing rooms were 30–200 ppb for hydrogen sulfide (H2S), 2.5–20 ppb for methyl mercaptan (CH3SH), 1.5–12 ppb for dimethyl sulfide (DMS; CH3SCH3) and 0.5–7 ppb for dimethyl disulfide (DMDS; CH3S2CH3), respectively. The emission rates of H2S, CH3SH, DMS and DMDS were estimated by multiplying the average concentration (mg m−3) measured near the air outlet by the mean ventilation rate (m3 h−1) and expressed either per area (mg m−2 h−1) or animal unit (AU; liveweight of the pig, 500 kg) (mg pig−1 h−1). As a result, the emission rates of H2S, CH3SH, DMS and DMDS in the pig-housing rooms were 14–64, 0.8–7.3, 0.4–3.4 and 0.2–1.9 mg m−2 h−1, respectively, based on pig's activity space and 310–723, 18–80, 9–39 and 5–22 mg AU−1 h−1, respectively, based on pig's liveweight, which indicates that their emission rates were similar, whether based upon the pig's activity space or liveweight. In conclusion, the concentrations and emission rates of H2S were highest in the fattening room followed by the growing, nursery, farrowing and gestation rooms whereas those of CH3SH, DMS and DMDS concentrations were largest in the growing room followed by the nursery, gestation and farrowing rooms. |
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