Effects of rock wool on the lungs evaluated by magnetometry and biopersistence test

Kudo, Yuichiro; Kotani, Masahiro; Tomita, Masayuki; Aizawa, Yoshifusa

doi:10.1186/1745-6673-4-5

Cited by 14 publications

(4 citation statements)

References 20 publications

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“…Absorbers are typically made from natural minerals and synthetic fibers, such as rockwool, glass wool, and foam materials. The Agency for Toxic Substances and Disease Registry reported that exposure to rockwool and synthetic materials can cause acute irritation to the skin, eyes, and respiratory tract and studies on the long-term negative effects of rockwool are still being conducted frequently [6][7][8]. The eco-friendliness and effectiveness in the sustainability of natural fibers contribute to their preference for high-quality and environmentally conscious sound absorption.…”

Section: Introductionmentioning

confidence: 99%

Abaca Fiber as a Potential Reinforcer for Acoustic Absorption Material at Middle-High Frequencies

Indrawati,

Yuwana,

Zainuri

2024

JRM

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Recently, abaca fibers have become the focus of specialized research due to their intriguing characteristics, with their outstanding mechanical properties being a particularly notable. In the conducted study, the abaca fibers underwent a preliminary treatment process involving an alkaline solution, which was composed of 0.5% sodium hydroxide (NaOH) and 50% acetic acid (CH 3 COOH). This process entailed immersing each fiber in the solution for a period of one hour. This treatment led to a 52.36% reduction in lignin content compared to the levels before treatment, resulting in a dramatic decrease in the full width at half maximum (FWHM) in the XRD spectra from 1.13 to 0.13. This change indicates that the fibers became more crystalline following the treatment. The abaca fibers were also characterized using BET (Brunauer Emmett Teller) measurements, which revealed that the average pore length ranged from 33-49 nm and the surface area was between 13-28 m 2 •g −1 . The morphology of the abaca fiber after alkali an hydrolisis treatment (AFAH) appeared rougher and more uniform. DMA measurements revealed a significant rise in the storage modulus of the single fiber post-treatment, with dependencies on both frequency and temperature. AFAH exhibited an optimal absorption coefficient of α = 0.9 for frequencies above 2500 Hz. The combined effect of alkalization and hydrolyzation treatments, while resulting in an enhancement in the mechanical properties of the fibers, also reduced high-intensity noise produced by sources such as machinery, aircraft takeoffs and landings, etc., across a broader working frequency range.

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Section: Introductionmentioning

confidence: 99%

Abaca Fiber as a Potential Reinforcer for Acoustic Absorption Material at Middle-High Frequencies

Indrawati,

Yuwana,

Zainuri

2024

JRM

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“…However, rockwool is a non-biodegradable product whose production process from non-renewable resources is energy-intensive and poses great environmental impacts. Furthermore, rockwool is associated with negative health effect ( Kudo et al., 2009 ). Considering the growth of greenhouse production and the difficulty to treat and to dispose of used rockwool products, we should make more effort to recycle rockwool or reduce the high energy demand dyring the manufacturing processes ( Antón et al., 2012 ).…”

Section: Introductionmentioning

confidence: 99%

Comparison of rockwool and coir for greenhouse cucumber production: chemical element, plant growth, and fruit quality

Ding

Jin

et al. 2022

Heliyon

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“…Because it is prepared of natural resources, Rockwool insulation is secure to produce and use, when appropriate rules are used. Many years of investigation have revealed that it causes little to no wellbeing dangers to people, comprising that of respiratory and other cancers (Kudo et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…To date there have been no studies done to look at the safety of Rockwool by way of lung magnetometry. In a study done by Kudo et al (2009), rats were forced to inhale Rockwood a nose-only inhalation exposure system and then looked at by lung magnetometry, a biopersistence test and pathological examination. The wellbeing features and safe utilization of mineral wools have been looked at for almost seventy years.…”

Section: Introductionmentioning

confidence: 99%

Green Building Construction Thermal Isolation Materials (Rockwool)

Itewi¹

2011

American Journal of Environmental Sciences

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Problem statement: Building insulation consisting roughly to anything in a structure that is utilizes as insulation for any reason. Thermal insulation in structures is a significant feature to attaining thermal comfort for its tenants. Approach: Insulation decreases unnecessary warmth loss or gain and can reduce the power burdens of heating and cooling structures. It does not automatically having anything to do with problems of sufficient exposure to air and might or might not influence the amount of sound insulation. Results: In a constricted way insulation can just mean the insulation substance used to reduce heat loss, such as: Glass wool, cellulose, polystyrene, rock wool, urethane foam, vermiculite and the earth, but it can also entail a variety of plans and methods used to deal with the chief forms of heat movement like transmission, emission and convection substances. The efficiency of insulation is normally assessed by its R-value. However, an R-value does not allow for the superiority of assembly or narrow green issues for each structure. Building superiority matters comprise insufficient vapor obstructions and troubles with draft-proofing. Additionally, the property and concentration of the insulation substance itself is vital. Fiberglass insulation materials, for example, made out of short fibers of glass covered on top of each other is not as long-lasting as insulation prepared from extended entwined fibers of glass. Conclusion/Recommendations: Rockwool insulation is a kind of insulation that is constructed out of real rocks and minerals. It furthermore is known by the names of mineral wool insulation, stone wool insulation or slag wool insulation. A broad collection of goods can be constructed from Rockwool, because of its outstanding capability to obstruct sound and heat. Rockwool insulation is normally utilized in building assembly, manufacturing plants and in automotive purposes. In this study i proposed to use Rockwool as a good insulation material to use for insulate the outside walls, this proposal proved by advance calculation and applied to exterminate case in Jordan because this material is available in Jordan.

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Effects of rock wool on the lungs evaluated by magnetometry and biopersistence test

Cited by 14 publications

References 20 publications

Abaca Fiber as a Potential Reinforcer for Acoustic Absorption Material at Middle-High Frequencies

Abaca Fiber as a Potential Reinforcer for Acoustic Absorption Material at Middle-High Frequencies

Comparison of rockwool and coir for greenhouse cucumber production: chemical element, plant growth, and fruit quality

Green Building Construction Thermal Isolation Materials (Rockwool)

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