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Updated: Jan 26, 2026
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Electroantennography-based Bio-hybrid Odor-detecting Drone using Silkmoth Antennae for Odor Source Localization
Published on: August 27, 2021
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Industrial Odor Source Identification Based on Wind Direction and Social Participation
Mohamed Eltarkawe1, Shelly Miller2
1Mechanical Engineering Department, University of Colorado Boulder, Sustainability, Energy and Environment Complex, East Campus, 4001 Discovery Drive, Boulder, CO 80303, USA. eltarkaw@colorado.edu.
Summary
Citizen science effectively identified industrial odor sources in Colorado communities. Smartphone-reported odor data combined with wind direction pinpointed specific facilities responsible for public odor complaints.
Area of Science:
- Environmental Science
- Public Health
- Atmospheric Chemistry
Background:
- Industrial odors are a significant environmental concern impacting community well-being.
- Effective odor mitigation strategies rely on accurate odor source identification.
- Community engagement in data collection presents a novel approach to environmental monitoring.
Purpose of the Study:
- To identify the sources of industrial odors in Colorado communities using citizen-reported data and meteorological information.
- To assess the feasibility of using social participation and wind data for odor source attribution.
- To pinpoint specific industrial facilities responsible for prevalent odor issues in North Denver and Greeley.
Main Methods:
- Collection of odor occurrence data (time, date, location, description) from residents via smartphone technology over one year.
- Analysis of odor spatial distribution and wind roses derived from local meteorological stations.
- Correlation of reported odor types with potential industrial sources based on location and wind patterns.
Main Results:
- The majority of odor reports originated from North Denver (57%) and Greeley (33%).
- Specific sources identified include a pet food manufacturer (pet food odor), a meat/grease recycling facility (dead animal/sewage odors), a creosote treatment facility (roofing tar odor), and asphalt/creosote facilities (refinery-like odors).
- A biogas facility east of LaSalle was identified as the source of offensive odors in Greeley.
Conclusions:
- The study demonstrates the feasibility and effectiveness of using social participation and wind direction for identifying industrial odor sources.
- Regional cooperation is recommended to address and mitigate odor problems in North Denver.
- Citizen science initiatives can be valuable tools for environmental monitoring and regulatory enforcement.
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