Assessment of coarse, fine, and ultrafine particulate matter at different microenvironments of fire stations DOI Creative Commons
Joana Teixeira, Gabriel Sousa, Simone Morais

et al.

Chemosphere, Journal Year: 2023, Volume and Issue: 335, P. 139005 - 139005

Published: May 26, 2023

The concentrations of respirable particulate matter (PM) and the impact on indoor air quality in occupational settings remains poorly characterized. This study assesses, for first time, cumulative non-cumulative 14 fractions coarse (3.65-9.88 μm), fine (0.156-2.47 ultrafine (0.015-0.095 μm) PM inside garage heavy vehicles, firefighting personal protective equipment' storage room, bar, a common area seven Portuguese fire stations. Sampling campaigns were performed during regular work week at Levels daily total ranged from 277.4 to 413.2 μg/m3 (maximum values 811.4 μg/m3), with bar (370.1 μg/m3) PPE' room (361.3 presenting slightly increased levels (p > 0.05) than (324.8 (339.4 μg/m3). location sampling site, proximity local industries commercial activities, layout building, heating system used, sources influenced concentrations. Fine (193.8-301.0 (41.3-78.2 particles predominant microenvironments all stations accounted 71.5% 17.8% levels, respectively; (23.3-47.1 represented 10.7% PM. permissible exposure limit (5.0 mg/m3) defined by Occupational Safety Health Organization dust was not overcome evaluated Results suggest firefighters' which will contribute cardiorespiratory health burden. Further studies are needed characterize stations, identify main emission sources, evaluate contribution exposures risks.

Language: Английский

Review of low-cost sensors for indoor air quality: Features and applications DOI Creative Commons
Milagros Ródenas, Andrea Spinazzè, P.T.B.S. Branco

et al.

Applied Spectroscopy Reviews, Journal Year: 2022, Volume and Issue: 57(9-10), P. 747 - 779

Published: June 27, 2022

Humans spend the majority of their time indoors, where they are potentially exposed to hazardous pollutants. Within this context, over past few years, there has been an upsurge low-cost sensors (LCS) for measurement indoor air pollutants, motivated both by recent technological advances and increased awareness quality (IAQ) its potential negative health impacts. Although not meeting performance requirements reference regulatory-equivalent monitoring LCS can provide informative measurements, offering opportunity high-resolution monitoring, emission source identification, exposure mitigation managing IAQ energy efficiency, among others. This article discusses strengths limitations that offer applications in field monitoring; it provides overview existing sensor technologies gives recommendations different applications, considering complex environment discussing future trends.

Language: Английский

Citations

74
A global multidimensional analysis of air pollution in land, sea, and air transport cabins reveals substantial health risks DOI
Haimei Wang, Wenjuan Wei, Keliang Wang

et al.

One Earth, Journal Year: 2025, Volume and Issue: 8(1), P. 101156 - 101156

Published: Jan. 1, 2025

Language: Английский

Citations

2
Influence of Ventilation on Formation and Growth of 1–20 nm Particles via Ozone–Human Chemistry DOI Creative Commons
Yang Shen, Tatjana Müller, Nijing Wang

et al.

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(10), P. 4704 - 4715

Published: Feb. 7, 2024

Ozone reaction with human surfaces is an important source of ultrafine particles indoors. However, 1–20 nm generated from ozone–human chemistry, which mark the first step particle formation and growth, remain understudied. Ventilation indoor air movement could have implications for these processes. Therefore, in a controlled-climate chamber, we measured initiated chemistry their dependence on change rate (ACR, 0.5, 1.5, 3 h–1) operation mixing fans (on off). Concurrently, volatile organic compounds (VOCs) explored correlation between gas-phase products. At 25–30 ppb ozone levels, humans 0.2–7.7 × 1012 1–3 nm, 0–7.2 3–10 0–1.3 10–20 per person hour depending ACR fan operation. Size-dependent growth rates increased higher ACR. The suppressed owing to enhanced surface deposition newly formed precursors. Correlation analyses revealed complex interactions VOCs by chemistry. results imply that ventilation may more significant influence dynamics fate relative

Language: Английский

Citations

8
Numerical Simulation of Turbulent Structure and Particle Deposition in a Three-Dimensional Heat Transfer Pipe with Corrugation DOI Creative Commons
Hao Lu, Y.C. Wang, Hongchang Li

et al.

Energies, Journal Year: 2024, Volume and Issue: 17(2), P. 321 - 321

Published: Jan. 9, 2024

When colloidal particles are deposited in a heat transfer channel, they increase the flow resistance resulting substantial decrease efficiency. It is critical to have comprehensive understanding of particle properties channels for practical engineering applications. This study employed Reynolds stress model (RSM) and discrete (DPM) simulate deposition 3D corrugated rough-walled channel. The turbulent diffusion was modeled with random walk (DRW). A user-defined function (UDF) created particle–wall contact, an improved bounce implemented. research focused on investigating secondary near wall, Q-value standards, kinetic energy distribution, through validation velocity tube modeling. analyzed impact airflow velocity, size, corrugation height, period findings suggest that use walls can significantly improve efficiency less than 20 μm size. Specifically, diameter 3 showed five times higher efficacy height 24 mm compared smooth surface.

Language: Английский

Citations

7
An Overview of Tools and Challenges for Safety Evaluation and Exposure Assessment in Industry 4.0 DOI Creative Commons
Spyridon Damilos, Stratos Saliakas,

Dimitris Karasavvas

et al.

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(10), P. 4207 - 4207

Published: May 15, 2024

Airborne pollutants pose a significant threat in the occupational workplace resulting adverse health effects. Within Industry 4.0 environment, new systems and technologies have been investigated for risk management as safety smart tools. The use of predictive algorithms via artificial intelligence (AI) machine learning (ML) tools, real-time data exchange Internet Things (IoT), cloud computing, digital twin (DT) simulation provide innovative solutions accident prevention mitigation. Additionally, sensors, wearable devices virtual (VR) augmented reality (AR) platforms can support training employees practices signal alarming concentrations airborne hazards, providing designing strategies hazard control options. Current reviews outline drawbacks challenges these technologies, including elevated stress levels employees, cyber-security, handling, privacy concerns, while highlighting limitations. Future research should focus on ethics, policies, regulatory aspects technologies. This perspective puts together advances innovations terms exposure assessment, aiding understanding full potential supporting their application industrial manufacturing environments.

Language: Английский

Citations

7
Neurotoxicity of fine and ultrafine particulate matter: A comprehensive review using a toxicity pathway-oriented adverse outcome pathway framework DOI

Shuang-Jian Qin,

Qing-Guo Zeng,

Hui-Xian Zeng

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 947, P. 174450 - 174450

Published: July 3, 2024

Language: Английский

Citations

7
Review on main sources and impacts of urban ultrafine particles: Traffic emissions, nucleation, and climate modulation DOI Creative Commons

Qin‐Qin Li,

Yi-Ting Guo,

Jingyi Yang

et al.

Atmospheric Environment X, Journal Year: 2023, Volume and Issue: 19, P. 100221 - 100221

Published: July 4, 2023

Identifying and quantifying the sources clarifying impacts of ultrafine particles (UFP) in complicated urban environments are important for particle pollution control UFP-climate interaction understanding. The previous studies have made notable contributions to these aspects it is necessary review achievements. Here, characteristics traffic emissions new formation (NPF) events/processes their effects on UFP summarized mainly based latest progresses. constantly improved techniques measuring played a vital role knowing UFP. Meanwhile, inventories, dispersion models, receptor models generally perform better when working together using high resolution input corrected algorithms. Besides, between climate discussed by linking radiation, cloud condensation nuclei, deposition, environmental conditions required nucleation processes. Although UFP, there consensuses that processes two main interact via radiation nuclei (CCN), many other crucial tasks future this work lists seven them. They involve, scientifically, how much such as industrial regional mix with source primary pollutants collaborate (aerosols) aerosol-climate interactions; engineeringly, improve integration instruments instrument customization services according actual situations. These progresses perspectives would help more accurately evaluating Despite our efforts, knowledge limited detailed solutions missing here, which need joint efforts from related fields.

Language: Английский

Citations

16
Dynamic optimization of personal exposure and energy consumption while ensuring thermal comfort in a test house DOI
Nishchaya Kumar Mishra, Marina E. Vance, Atila Novoselac

et al.

Building and Environment, Journal Year: 2024, Volume and Issue: 252, P. 111265 - 111265

Published: Feb. 2, 2024

Language: Английский

Citations

5
Advances in analysis of atmospheric ultrafine particles and application in air quality, climate, and health research DOI
Ting Lei, Xiang Wang, Bin Zhao

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 949, P. 175045 - 175045

Published: July 26, 2024

Language: Английский

Citations

5
Harm from Residential Indoor Air Contaminants DOI Creative Commons
Giobertti Morantes, Benjamin Jones, Constanza Molina

et al.

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 58(1), P. 242 - 257

Published: Dec. 27, 2023

This study presents a health-centered approach to quantify and compare the chronic harm caused by indoor air contaminants using disability-adjusted life-year (DALY). The aim is understand airborne in dwellings identify most harmful. Epidemiological toxicological evidence of population morbidity mortality used determine intensities, metric per unit contaminant concentration. Uncertainty evaluated concentrations 45 commonly found dwellings. Chronic estimated from intensities concentrations. harmful are PM2.5, PM10–2.5, NO2, formaldehyde, radon, O3, accounting for over 99% total median 2200 DALYs/105 person/year. all accounts 7% global burden diseases.

Language: Английский

Citations

13