Ultrafine particles: A review about their health effects, presence, generation, and measurement in indoor environments

Marval, Jesus; Tronville, Paolo Maria

doi:10.1016/j.buildenv.2022.108992

Cited by 51 publications

(37 citation statements)

References 62 publications

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“…In addition, toxicologists refer to particle size as ultrafine, fine, and coarse particles to specify their danger to cells and human health [11,12]. The latest definition is PM 0.1 , which typically refers to solid particles with at least one dimension smaller than 0.1 µm or 100 nm [13] and is always used in atmospheric pollution studies. Therefore, nanoparticles, nanoaerosols, ultrafine particles, and PM 0.1 are commonly used in the scientific fields but depend on the subject matter areas.…”

Section: Introduction Of Impact Of Pm 01mentioning

confidence: 99%

Ambient Nanoparticles (PM0.1) Mapping in Thailand

Phairuang

Piriyakarnsakul²,

Inerb

et al. 2022

Atmosphere

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Nanoparticles (NPs), nanoaerosols (NAs), ultrafine particles (UFPs), and PMs0.1 (diameters ≤ 0.1 µm or 100 nm) are used interchangeably in the field of atmospheric studies. This review article summarizes recent research on PM0.1 in Thailand. The review involved peer-reviewed papers that appeared in the Scopus and the Web of Science databases and included the most recently published articles in the past 10 years (2013–2022). PM0.1 mainly originate from combustion processes such as in motor vehicles. The highest mass concentration of PMs0.1 occurs during the dry season, in which open fires occur in some regions of Thailand. The northern area of the country has higher PM0.1 mass concentrations, followed by the central and southern areas. Carbonaceous nanoaerosols are produced during normal periods, and the proportions of organic to elemental carbon and char to soot suggest that these originate from motor vehicles. However, in haze periods, biomass fires can also produce carbon-containing particles. PM0.1 pollution from local and cross-border countries also needs to be considered. The overall conclusions reached will likely have a beneficial long-term impact on achieving a blue sky over Thailand through the development of coherent policies and managing new air pollution challenges and sharing knowledge with a broader audience.

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Section: Introduction Of Impact Of Pm 01mentioning

confidence: 99%

Ambient Nanoparticles (PM0.1) Mapping in Thailand

Phairuang

Piriyakarnsakul²,

Inerb

et al. 2022

Atmosphere

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“…In our study, we focused on a limited list of 45 contaminants commonly found in dwellings, selected based on their known harmful effects and availability of data. However, an important limitation is the omission of emerging contaminants like PM 1 and ultrafine particles PM 0.1 , fungicides and pesticides, flame retardants, and endocrine disruptors such as phthalates, which have gained increasing attention in research. ,− These substances have the potential to significantly contribute to harm in indoor environments. Therefore, future studies should expand the scope to include these emerging contaminants, enabling a more comprehensive assessment of harm.…”

Section: Discussionmentioning

confidence: 99%

Harm from Residential Indoor Air Contaminants

Morantes,

Jones,

Molina

et al. 2023

Environ. Sci. Technol.

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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 to understand the chronic harm caused by airborne contaminants in dwellings and identify the most harmful. Epidemiological and toxicological evidence of population morbidity and mortality is used to determine harm intensities, a metric of chronic harm per unit of contaminant concentration. Uncertainty is evaluated in the concentrations of 45 indoor air contaminants commonly found in dwellings. Chronic harm is estimated from the harm intensities and the concentrations. The most harmful contaminants in dwellings are PM 2.5 , PM 10−2.5 , NO 2 , formaldehyde, radon, and O 3 , accounting for over 99% of total median harm of 2200 DALYs/10 5 person/year. The chronic harm caused by all airborne contaminants in dwellings accounts for 7% of the total global burden from all diseases.

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“…Originating directly from traffic emissions − and via in situ atmospheric oxidation processes, , ultrafine particles dominate the number distribution of urban aerosols . Exposure to ultrafine particles has been associated with respiratory and cardiovascular mortality and brain diseases. − In indoor environments, where people spend most of their time, ultrafine particle levels can be comparable, or even higher than outdoor, owing to various indoor particle generation sources. − Typical indoor ultrafine particle sources can be classified into three overlapping categories: combustion, such as cooking , and burning candles; , volatilization/nucleation/condensation, including those from electrical appliances, − heated surfaces, and painting; and oxidation, mainly referring to ozone–terpene chemistry indoors . Ultrafine particle emissions have been documented from the ozone reaction with indoor terpene-rich fragrances, , personal care products, − and cleaning agents. , A potentially strong yet understudied source of indoor ultrafine particles is ozone–human chemistry.…”

Section: Introductionmentioning

confidence: 99%

Influence of Ventilation on Formation and Growth of 1–20 nm Particles via Ozone–Human Chemistry

Yang,

Müller,

Wang

et al. 2024

Environ. Sci. Technol.

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Ozone reaction with human surfaces is an important source of ultrafine particles indoors. However, 1−20 nm particles generated from ozone−human chemistry, which mark the first step of particle formation and growth, remain understudied. Ventilation and indoor air movement could have important implications for these processes. Therefore, in a controlled-climate chamber, we measured ultrafine particles initiated from ozone−human chemistry and their dependence on the air change rate (ACR, 0.5, 1.5, and 3 h −1 ) and operation of mixing fans (on and off). Concurrently, we measured volatile organic compounds (VOCs) and explored the correlation between particles and gas-phase products. At 25−30 ppb ozone levels, humans generated 0.2−7.7 × 10 12 of 1−3 nm, 0−7.2 × 10 12 of 3−10 nm, and 0−1.3 × 10 12 of 10−20 nm particles per person per hour depending on the ACR and mixing fan operation. Size-dependent particle growth and formation rates increased with higher ACR. The operation of mixing fans suppressed the particle formation and growth, owing to enhanced surface deposition of the newly formed particles and their precursors. Correlation analyses revealed complex interactions between the particles and VOCs initiated by ozone−human chemistry. The results imply that ventilation and indoor air movement may have a more significant influence on particle dynamics and fate relative to indoor chemistry.

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Ultrafine particles: A review about their health effects, presence, generation, and measurement in indoor environments

Cited by 51 publications

References 62 publications

Ambient Nanoparticles (PM0.1) Mapping in Thailand

Ambient Nanoparticles (PM0.1) Mapping in Thailand

Harm from Residential Indoor Air Contaminants

Influence of Ventilation on Formation and Growth of 1–20 nm Particles via Ozone–Human Chemistry

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