Themed collection Bioaerosols: detection, transport and risk assessment

10 items
Open Access Paper

Antimicrobial activity of safe concentrations of ozone, hydrogen peroxide, and triethylene glycol in air and surfaces

The application of low and non-toxic concentrations of antimicrobial compounds in indoor air is an interesting strategy to reduce airborne bacteria and fungi thereby reducing infection risk.

Graphical abstract: Antimicrobial activity of safe concentrations of ozone, hydrogen peroxide, and triethylene glycol in air and surfaces
From the themed collection: ES: Atmospheres Hot Papers
Open Access Paper

Nycterohemeral airborne fungal and bacterial communities and health risks of potential pathogens in Shanghai

Urbanization-influenced airborne microorganisms and megacity bioaerosols have garnered particular attention due to their importance in the atmospheric environment.

Graphical abstract: Nycterohemeral airborne fungal and bacterial communities and health risks of potential pathogens in Shanghai
Open Access Paper

Size dependent effectiveness of engineering and administrative control strategies for both short- and long-range airborne transmission control

Using a size-dependent transmission model linking short- and long-range airborne transmission, we re-estimate the effectiveness of control strategies in mitigating airborne transmission, while concurrently underscoring the need to consider droplet size in airborne transmission dynamics.

Graphical abstract: Size dependent effectiveness of engineering and administrative control strategies for both short- and long-range airborne transmission control
Open Access Paper

Negligible increase in indoor endotoxin activity by 222 nm far-UVC illumination on bioaerosols

Far-UVC irradiation (222 nm) is an emerging approach for disinfection due to its effectiveness and potentially harmless nature to humans by direct irradiation compared with other UV wavelengths.

Graphical abstract: Negligible increase in indoor endotoxin activity by 222 nm far-UVC illumination on bioaerosols
Open Access Paper

Resolving the controls over the production and emission of ice-nucleating particles in sea spray

Oceans emit ice-nucleating particles (INPs) which freeze supercooled cloud droplets, modifying clouds. We added dead biomass of three phytoplankton to seawater. Each time, this stimulated INP production in the water and INP emissions in sea spray.

Graphical abstract: Resolving the controls over the production and emission of ice-nucleating particles in sea spray
Open Access Paper

Assessing the efficiency of water-soluble organic compound biodegradation in clouds under various environmental conditions

Biodegradation is competitive with photochemistry, especially in summer and at night. Formic acid is the most impacted compound.

Graphical abstract: Assessing the efficiency of water-soluble organic compound biodegradation in clouds under various environmental conditions
Open Access Paper

Drone-based particle monitoring above two harmful algal blooms (HABs) in the USA

Little is known about the transport and fate of aerosolized particles associated with harmful algal blooms (HABs).

Graphical abstract: Drone-based particle monitoring above two harmful algal blooms (HABs) in the USA
Open Access Paper

Emission of primary bioaerosol particles from Baltic seawater

Bioaerosols within sea spray are particles of biological origin with various important atmospheric implications. These particles were characterized here using novel single-particle spectroscopy and microbial community composition analysis.

Graphical abstract: Emission of primary bioaerosol particles from Baltic seawater
Open Access Paper

Characterization of single fungal aerosol particles in a reactive atmospheric environment using time-resolved optical trapping-Raman spectroscopy (OT-RS)

We applied a time-resolved, optical trapping-Raman spectroscopy (OT-RS) technique to characterize single, trapped bioaerosol particles under well-controlled reactive conditions that mimic the native state of particles in the atmosphere.

Graphical abstract: Characterization of single fungal aerosol particles in a reactive atmospheric environment using time-resolved optical trapping-Raman spectroscopy (OT-RS)
Open Access Paper

Speech-generated aerosol settling times and viral viability can improve COVID-19 transmission prediction

Speech generates droplets averaged 6 μm in size. Their settling time and SARS-CoV-2 viral viability inside those droplets, both calculated from temperature and relative humidity, predict COVID transmission rates within one-sigma interval.

Graphical abstract: Speech-generated aerosol settling times and viral viability can improve COVID-19 transmission prediction
10 items

About this collection

In this gold open-access themed collection, we focus on bioaerosols, which are airborne particles that are living or originate from living organisms , such as bacteria, viruses, fungalspores and pollen.  

Guest-edited by Cindy Morris (INRAE, Avignon), Xiaole Zhang (ETH Zurich), Malin Alsved (Lund University), Joshua Santarpia (University of Nebraska Medical Center), this broad collection highlights how bioaerosols can have significant impacts on human health, agriculture and ecosystems.

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