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Related Experiment Video

Updated: Jul 14, 2026

Studying the Effects of Inhaled Environmental Pollutants on Olfactory Function in Mice

Studying the Effects of Inhaled Environmental Pollutants on Olfactory Function in Mice

Published on: September 13, 2024

Impact of Environmental Microparticles on Insect Olfaction.

Steve B S Baleba^1,2, Danube K N Wandji³, Yves H Tchiechoua⁴

¹International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya.

Environmental Toxicology

|July 12, 2026

Summary

Environmental microparticles disrupt insect olfaction, impairing essential insect-mediated ecosystem services like pollination and pest control. Further research is needed to understand the mechanisms and ecological impacts.

Keywords:

ecosystem services insect olfaction microparticle pollution olfactory‐mediated behavior sensory disruption volatile organic compounds (VOCs)

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Identification of Olfactory Volatiles using Gas Chromatography-Multi-unit Recordings (GCMR) in the Insect Antennal Lobe

Identification of Olfactory Volatiles using Gas Chromatography-Multi-unit Recordings (GCMR) in the Insect Antennal Lobe

Published on: February 24, 2013

Area of Science:

Environmental Science
Ecology
Neuroscience

Background:

Terrestrial insects perform vital ecosystem services reliant on chemical communication.
Environmental microparticles (microplastics, soot, dust) are ubiquitous, exposing insects via contact, deposition, and ingestion.
These particles are known to interfere with insect olfaction, impacting foraging, reproduction, and survival.

Purpose of the Study:

To synthesize evidence on how microparticles disrupt insect olfaction across the entire pathway from signal emission to neural processing.
To identify knowledge gaps in the mechanisms linking microparticles to olfactory disruption.
To propose a research framework for future studies on microparticle impacts on insect olfaction and ecosystem services.

Main Methods:

Review of chemical, physiological, and ecological evidence.
Mapping the interference of microparticles with insect olfaction.
Identification of knowledge gaps and proposal of a research framework.

Main Results:

Microparticles disrupt insect olfaction by adsorbing volatile compounds, blocking sensory structures, and interfering with neural processes.
Olfactory disruption leads to impaired foraging, mating, and host-seeking behaviors.
Weakened insect-mediated services (pollination, biological control) have broad ecological consequences.

Conclusions:

Microparticle contamination poses a significant threat to insect olfaction and the ecosystem services they provide.
Understanding the precise mechanisms of olfactory disruption is crucial for mitigating ecological impacts.
A multi-level research approach is needed to address the complex interactions between microparticles, insect olfaction, and ecosystem health.