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Sampling Methods: Sample Types

Sampling Methods: Sample Types

Sampling materials are classified into three main types: solid, liquid, and gas.
Solid samples include a variety of substances, such as sediments from water bodies, soil, metals, and biological tissues. Two standard methods for extracting sediments from water bodies are grab sampling and piston coring. Grab sampling involves using a device to collect a discrete sediment sample from the bottom of a water body with minimal disturbance. Grab samples do not always represent the entire area due to...

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Updated: Mar 22, 2026

Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions

Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions

Published on: January 7, 2019

Bioaerosol sampling: sampling mechanisms, bioefficiency and field studies.

C W Haig¹, W G Mackay¹, J T Walker²

¹Institute of Healthcare Associated Infection, University of the West of Scotland, Paisley, UK.

The Journal of Hospital Infection

|April 27, 2016

Summary

This summary is machine-generated.

Choosing the right bioaerosol sampling device is crucial for accurately detecting airborne pathogens in healthcare settings. This review guides researchers on selecting optimal equipment and methods for effective pathogen capture and exposure monitoring.

Keywords:

Airborne pathogens Bioaerosol sampling Bioefficiency Healthcare

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Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions

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Area of Science:

Environmental microbiology
Occupational health
Infectious disease transmission

Background:

Airborne transmission of pathogens in healthcare settings is a long-standing research challenge.
Pathogen behavior varies with environmental conditions and mechanical stress, complicating sampling device selection.
Effective bioaerosol sampling is essential for understanding and controlling infectious disease spread.

Purpose of the Study:

To review current bioaerosol sampling techniques, equipment, and methodologies.
To provide guidance for selecting appropriate sampling devices for pathogen detection in healthcare environments.
To inform researchers on best practices for bioaerosol sampling from laboratory to field applications.

Main Methods:

A comprehensive literature search of English-language papers on bioaerosol sampling was conducted using electronic databases.
The review analyzes the mechanisms, strengths, and weaknesses of common bioaerosol sampling devices (impingers, cyclones, impactors, filters).
Successful study examples illustrating best practices in various healthcare settings are presented.

Main Results:

Different bioaerosol samplers have unique strengths and weaknesses impacting microbial bioefficiency.
Effective sampling strategies range from personal samplers for worker exposure to static samplers for environmental monitoring.
Laboratory determination of sampler bioefficiency with the target pathogen is critical before field deployment.

Conclusions:

Informed selection of bioaerosol samplers and methodologies enhances the certainty of capturing low-concentration airborne pathogens.
Standardizing the determination of bioefficiency in laboratory settings is paramount for successful field sampling.
This review empowers investigators to make informed decisions for effective bioaerosol sampling in healthcare research.