Indoor Particles, Combustion Products and Fibres

Morawska, Lidia; He, Congrong

doi:10.1007/698_2014_262

Cited by 7 publications

(10 citation statements)

References 64 publications

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“…A steady-weather situation is chosen as the experiment environment in order to make the test data comparable. 5 The temperature ranged from 28°C to 32°C with an accuracy of 0.6°C, while the relative humidity ranged from 65% to 87% with an accuracy of 1%.…”

Section: Experimental Equipmentmentioning

confidence: 99%

Feature analysis of indoor particulate matter concentration using fiber filtration for mechanical ventilation

Xie

Fan

et al. 2020

Journal of Engineered Fibers and Fabrics

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Experiments and theoretical analyses are conducted in an office in Xi’an to study indoor particle concentration through establishing a mass balance equation and real-time monitoring. Meanwhile, the filtration efficiencies for different grades of filter media have been tested and verified by experiments. Studies are conducted on indoor particulate emission source and concentration change in combination with equation of linear regression, linear fitting curve of indoor–outdoor concentration, as well as indoor concentration decay profile. The results indicate that coarse filters G1 to G4 are used in mechanical ventilation to filter larger particles. However, it can only achieve 1.6%–15.2% for PM2.5 filtration efficiency. On the other hand, F7 to H10 filters could reach the high efficiency of 55.6%–69.7%. Furthermore, indoor PM2.5 concentration with a coarse filter using G4 filter can obviously reduce the indoor particulate concentration to 69–75 μg/m3. It ranges from 87 to 90 μg/m3 using a G3 filter, while the outdoor PM2.5 concentration is 135–150 μg/m3.

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Section: Experimental Equipmentmentioning

confidence: 99%

Feature analysis of indoor particulate matter concentration using fiber filtration for mechanical ventilation

Xie

Fan

et al. 2020

Journal of Engineered Fibers and Fabrics

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“…The emissions of kitchens, heating systems, tobacco, air fresheners and cleaning products produce contaminants, among them particles. However, the emissions produced outdoors (traffic, construction and industry) penetrate the interiors of buildings, and these make the primary contribution to indoor air quality [20,27]. This effect is even greater in buildings, as is the case with the classrooms of the schools where there are no important indoor emission sources; furthermore, many activities take place in the playgrounds adjacent to the classrooms.…”

Section: Resultsmentioning

confidence: 99%

Typological Characterisation of Mineral and Combustion Airborne Particles Indoors in Primary Schools

2019

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This study was carried out using a scanning electron microscope (SEM) analysis of airborne fine particles and indoor samples, obtained in the interiors of seven primary schools located along the Mediterranean coast in an area with an important industrial nucleus. The objectives of this study are to create a catalogue that gathers the principle particles found in the three environments examined and to assess the influence of outside sources of particulate matter on particles found indoors. The particles identified in the fine particle samples have been grouped into two main groups: mineral compounds and particles originating from combustion processes. The mineral particles emanating from natural emissions and anthropogenics were classified according to their morphology into: isometric alotriomorphs or subidiomorphs, with tabular, acicular, and pure crystalline forms. The compounds originating from combustion processes present two types of morphology: spheric-like particles and dendritic soot ones. On the other hand, in lesser proportion, spherical particles were also identified as being associated with industrial processes at high temperatures. To conclude a summary table is presented, that gathers the characteristics (morphology, type and size) along with the origins of the principle particles identified in the interior airborne fine particle samples obtained from primary schools located in three different environments.

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“…The heat produced from the fuel is used for cooking, keeping warm, and boiling water for sanitation. The combustion fuels mainly categorize as gas, liquid, and solids [1]. Solid fuels need an air mixture to fully combust and provide energy [2].…”

Section: Introductionmentioning

confidence: 99%

Poor Air Quality: A Dark Cloud of Filth Poisons

Khan¹,

Shah²,

Zhang³

2021

Environmental Sustainability - Preparing for Tomorrow

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Our home, the Earth, is the rarest planet in-universe the to sustain life. The thing which makes it unique amongst heavenly bodies is balance in the environment. This balance is the key to sustain life for millions of years. Air is one of the most critical components of mother nature; it provides oxygen for all species, both plant and animal, to live. Air not only provides oxygen but is also essential for keeping the human body cool. The advantages of air are countless, from the cloud, weather, humidity, dust, and pollen migration to burning fire; without it, life will not continue. Air is made up of chemical components, and if pollutants added, it would become harmful for all living beings. The chapter put forward is to highlight the importance of the quality of ambient air, standards to measure, and sources of pollution. Further in the chapter, the impacts of polluted air on human health and the countries’ financial obstacles are discussed. The chapter concludes with a summary and recommendations for policymakers, NGOs, and affected people to better their lives and repair the damage caused to nature’s precious gift, the air.

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Indoor Particles, Combustion Products and Fibres

Cited by 7 publications

References 64 publications

Feature analysis of indoor particulate matter concentration using fiber filtration for mechanical ventilation

Feature analysis of indoor particulate matter concentration using fiber filtration for mechanical ventilation

Typological Characterisation of Mineral and Combustion Airborne Particles Indoors in Primary Schools

Poor Air Quality: A Dark Cloud of Filth Poisons

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