Identification and quantification of nuisance odors at a trash transfer station.
The objective of this study was to evaluate the effectiveness of a modified Odor Profile Method (OPM) at a trash transfer station (TTS). An updated Landfill Odor Wheel was used to define odor character and distinguish among odor sources. The Flavor Profile Analysis (FPA) intensity scale was used to rank the relative intensity of the various odor characters defined by the odor wheel and to understand how each odor profile changed off site. Finally, the odor wheel was used to select the appropriate chemical analysis to identify the odorants causing the odors identified by the human panelists. The OPM was demonstrated as an effective tool for characterizing and distinguishing odor sources at a TTS. Municipal solid waste (MSW) odors were characterized as rancid, sulfur, and fragrant; rancid odors were dominant in the odor profile on-site, while sulfur odors dominated off-site. Targeted chemical analysis was used to identify odorants potentially responsible for odors at the site. Methyl mercaptan (rotten vegetable) and hydrogen sulfide (rotten egg) were identified as the odorants most likely to be responsible for the sulfur odors at the site. Acetaldehyde (sweet, fruity), acetic acid (vinegar), and butyric acid (rancid) were identified as the odorants mostly likely to be causing the rancid and sour odors. Terpenes/pine odors were observed near the greenwaste pile. Results confirm that the OPM, together with properly selected chemical analyses, can be a useful tool for identifying and quantifying the sources of odors.
Department of Environmental Health Sciences and Environmental Science and Engineering Program, University of California, Los Angeles, School of Public Health, 650 Charles E Young Dr. South, Los Angeles, CA 90095, United States. Electronic address: janecurren@yahoo.com.
Jane
J
Curren
Department of Environmental Health Sciences and Environmental Science and Engineering Program, University of California, Los Angeles, School of Public Health, 650 Charles E Young Dr. South, Los Angeles, CA 90095, United States. Electronic address: samantha_m_abraham@yahoo.com.
Samantha A
SA
Hallis
South Coast Air Quality Management District, 21865 Copley Dr., Diamond Bar, CA 91765, United States. Electronic address: csnyder@aqmd.gov.
Cherie Cher L
CCL
Snyder
Department of Environmental Health Sciences and Environmental Science and Engineering Program, University of California, Los Angeles, School of Public Health, 650 Charles E Young Dr. South, Los Angeles, CA 90095, United States. Electronic address: msuffet@ucla.edu.
Irwin Mel H
IMH
Suffet
D000079:Acetaldehyde / Q000032:analysis; D019342:Acetic Acid / Q000032:analysis; D020148:Butyric Acid / Q000032:analysis; D004784:Environmental Monitoring / Q000379:methods*; D008401:Gas Chromatography-Mass Spectrometry; D006862:Hydrogen Sulfide / Q000032:analysis; D009812:Odorants / Q000032:analysis*; D062611:Solid Waste; D013438:Sulfhydryl Compounds / Q000032:analysis; D064091:Waste Disposal Facilities
D062611:Solid Waste; D013438:Sulfhydryl Compounds; D020148:Butyric Acid; C005231:methylmercaptan; D000079:Acetaldehyde; D019342:Acetic Acid; D006862:Hydrogen Sulfide
Municipal solid waste; Odor Profile Method; Odour evaluation; Trash transfer station