Protocol for measuring the impact of agriculture on local air quality
Authors: Mali, D, D Wood, B Van Heyst
Description: Livestock production in the agricultural sector has been highlighted as a source and contributor of several atmospheric pollutants. These pollutants can have adverse health effects on humans but may also contribute to stress experienced by livestock. Several pollutants that are of interest include ammonia, particulate matter, gaseous acidic species, methane, and non-methane hydrocarbons. This paper presents a protocol for quantifying concentrations of several different chemical species in agricultural production facilities. The focus is on quantifying concentrations of these different species but it is of equal importance to accurately measure ventilation rates. To detect the pollutants, this protocol will include the use of Annular Denuders and Ion Chromatography for discrete measurements of ammonia, ammonium salts, and acidic species, Thermo-Electron Analyzers to detect methane, and non-methane hydrocarbons, sulfur dioxide, particulate matter and others. The analyzers need frequent calibration and maintenance which must be done on site. Calibration and changing of desiccant packs are essential to maintain consistent results, and in some cases, such as ammonia, moisture in the sample line can be detrimental to the analyzer and results. This protocol includes methods that will allow for a very robust and comprehensive assessment of air quality in agricultural livestock production facilities.
Keywords: ammonia, agriculture, particulates, annular denuder, analyzer
Technical field: technical_fields_app9
Session name: Waste management