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Description: Livestock contributes to the emission of particles in the atmosphere. Literature shows drastic differences between emission factors by animal category probably related to measurements methodologies. The aim of this study was to develop a measurement protocol strictly adapted to pig husbandry conditions. The study is organized in 3 steps : (i) analysis of metrology equipment adaptable to ground conditions (ii) identification of specific conditions related to measure particles in pig housing and (iii) development of a protocol according the previous steps. The two first steps led to choose the optical measurment methodology because of the possibility to have continuous measurements but also number and massic concentrations. To validate the conversion between number and mass, a gravimetric method with simple filter was also selected. After several tests in experimental pig farm, the main points of the protocol were established : 24h-sampling period in the middle of the room/corridor integrating the diurnal and nocturnal changes inside piggeries. To calculate the emission factor per fattening pig, three periods (between 12-20 , 43-52, 76-84 days) were identified with measurement of CO2 concentration for the calculation of the ventilation rate. This protocol is currently in progress in commercial pig farms in Western France for the second phase of the project.

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Date: 2021-06-11
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Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: 4th international Symposium on Gas Emissions and Dust from Livestock (EMILI) 5 - Mitigation Strategies

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Publication type: Presentation
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Coverage: France
Language 1: en
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Rights: Canadian Society for Bioengineering
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