Determining the level of organic acid air pollution in museum storage rooms by mass-balance modelling

Smedemark, Signe Hjerrild; Ryhl-Svendsen, Morten

doi:10.1016/j.culher.2022.04.006

Cited by 8 publications

(11 citation statements)

References 20 publications

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“…A steady-state balance similar to that of Equations ( 2) and (3) can be expressed for pollutants generated within the indoor zone (the building, the room) [31,32]:…”

Section: Indoor Air Pollution (Iap)mentioning

confidence: 99%

“…The indoor generation of pollutants happens as emission from materials, and in the case of museum environments, especially the release of organic acids is considered harmful for a range of heritage materials [4][5][6]. The area-specific emission rate SER of organic acids has been measured for samples of heritage wood objects [10], and the IAP model has previously been applied to museum storage environments [31,32]. Smedemark and Ryhl-Svendsen [32] provided a general step-by-step guide to its use based on easily measured building characteristics and data collated from the literature.…”

Section: Indoor Air Pollution (Iap)mentioning

confidence: 99%

“…Outdoor pollutants will, other things being equal, become reduced to a fraction of the outdoor level when the compounds infiltrate a building, either directly through forced ventilation systems, open windows, etc., or by natural ventilation at tortuous paths bypassing closed but leaky doors, or through small leaks, cracks, and holes in the building envelope. If, on the other hand, indoor pollution sources are present, the indoor level can exceed the outdoor level by many orders of magnitude [11]. Several publications collate typical pollution levels in museums and other heritage buildings [6,[12][13][14][15], and guidelines on pollution levels for the preservation of heritage objects are given, for example, by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) [16].…”

Section: Introductionmentioning

confidence: 99%

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Mass-Transfer Air Pollution Modeling in Heritage Buildings

Ryhl-Svendsen

Smedemark

2023

Heritage

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Two simple mass-balance models for estimating the concentration of air pollutants inside buildings are presented for pollutants originating from outdoors or generated indoors. The models can be used to establish average pollution loads on heritage objects inside buildings and assist in risk assessment for conservation. The models can be run with a minimum of data, either based on fixed conditions or as a Monte Carlo simulation based on plausible intervals of the input factors. Input data can be obtained by simple measurements or based on the literature. A museum storage hall in Denmark was used as a test site for demonstrating the models. They were evaluated with regard to the prediction of the indoor/outdoor concentration ratio for ozone and nitrogen dioxide and the build-up concentration of indoor generated organic acids. The pros and cons of such models were discussed, where the main reservation is related to shortcomings when real buildings are more complicated than the single-zone structure of the models. A strength of the models is the easy adaption to an indoor environment and, despite being semi-quantitative at times, the simplicity of the models, which allows for practical everyday use in air quality management of heritage buildings.

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“…A steady-state balance similar to that of Equations ( 2) and (3) can be expressed for pollutants generated within the indoor zone (the building, the room) [31,32]:…”

Section: Indoor Air Pollution (Iap)mentioning

confidence: 99%

Section: Indoor Air Pollution (Iap)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mass-Transfer Air Pollution Modeling in Heritage Buildings

Ryhl-Svendsen

Smedemark

2023

Heritage

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“…The monitoring of gas-phase volatile organic compounds (VOCs) has gained increasing attention due to their crucial role in providing important information in the gas phase. − Among these VOCs, acetic acid is a common small-molecule compound. Gaseous acetic acid detection is in significant demand across various scenarios, including environmental monitoring, human health assessment, beverage quality testing, and cultural heritage preservation. − Timely monitoring of gaseous acetic acid enables the assessment of air quality, monitoring of product acidity in the brewing industry, and the early diagnosis of diseases. Therefore, high sensitivity and rapid detection of gaseous acetic acid monitoring hold significant importance in multiple fields.…”

Section: Introductionmentioning

confidence: 99%

SERS-Based Hydrogen Bonding Induction Strategy for Gaseous Acetic Acid Capture and Detection

Kou,

Zhang,

et al. 2024

Anal. Chem.

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Surface-enhanced Raman scattering (SERS) can overcome the existing technological limitations, such as complex processes and harsh conditions in gaseous small-molecule detection, and advance the development of real-time gas sensing at room temperature. In this study, a SERS-based hydrogen bonding induction strategy for capturing and sensing gaseous acetic acid is proposed for the detection demands of gaseous acetic acid. This addresses the challenges of low adsorption of gaseous small molecules on SERS substrates and small Raman scattering cross sections and enables the first SERS-based detection of gaseous acetic acid by a portable Raman spectrometer. To provide abundant hydrogen bond donors and acceptors, 4-mercaptobenzoic acid (4-MBA) was used as a ligand molecule modified on the SERS substrate. Furthermore, a sensing chip with a low relative standard deviation (RSD) of 4.15% was constructed, ensuring highly sensitive and reliable detection. The hydrogen bond-induced acetic acid trapping was confirmed by experimental spectroscopy and density functional theory (DFT). In addition, to achieve superior accuracy compared to conventional methods, an innovative analytical method based on direct response hydrogen bond formation (I O−H /I ref ) was proposed, enabling the detection of gaseous acetic acid at concentrations as low as 60 ppb. The strategy demonstrated a superior anti-interference capability in simulated breath and wine detection systems. Moreover, the high reusability of the chip highlights the significant potential for real-time sensing of gaseous acetic acid.

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“…[5] In addition, acetic acid is one of the most severe indoor air pollutants causing damage to museum collections, which could depolymerize cellulose-based materials such as paper, metal items, and varnishes. [6,7] Therefore, it is necessary and highly desirable to monitor the concentration of acetic acid in various circumstances in order to take precautions for industrial safety and human health. However, conventional acetic acid detection techniques based on large-scale instruments are rather complicated and inconvenient to use, apparently hindering their wide applications.…”

Section: Introductionmentioning

confidence: 99%

Chemiresistive Gas Sensors Based on Highly Permeable Sn‐Doped Bismuth Subcarbonate Microspheres: Facile Synthesis, Sensing Performance, and Mechanism Study

Huang,

Chen,

Xie

et al. 2023

Adv Funct Materials

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Acetic acid (CH3COOH) detection with high selectivity at low temperatures is significant due to its wide applications in the chemical, medical, and catering industries. Chemiresistive gas sensors based on metal oxide semiconductors (MOSs) are widely used in detecting various gases, but it is necessary to develop MOSs with novel nanostructures to enhance gas‐sensing performance. Herein, a series of bismuth subcarbonate (Bi2O2CO3, abbreviated as BCO) microspheres with highly permeable lamellar structure and tunable Sn‐doping ratios (0–5 at%) is synthesized by controlling kinetics equilibrium of the hydrothermal reaction. The sensor based on 3 at% Sn‐doped BCO microspheres exhibits excellent gas‐sensing performances toward acetic acid (10 ppm), including high sensitivity (S = 8.3), fast recovery speed (10 s), long‐term stability (over 30 days), and good selectivity at a low temperature (150 °C). The unique permeable lamellar structure assembled from 2D Sn‐doped BCO nanosheets and rich Sn4+ doping‐induced active sites is mainly responsible for the enhanced gas‐sensing performances. Moreover, a new acetic acid reaction process is revealed via in situ diffuse reflectance infrared transform spectroscopy. Density functional theory calculations indicate that Sn‐doped BCO has a higher acetic acid adsorption energy and a larger charge transfer than pristine BCO.

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Determining the level of organic acid air pollution in museum storage rooms by mass-balance modelling

Cited by 8 publications

References 20 publications

Mass-Transfer Air Pollution Modeling in Heritage Buildings

Mass-Transfer Air Pollution Modeling in Heritage Buildings

SERS-Based Hydrogen Bonding Induction Strategy for Gaseous Acetic Acid Capture and Detection

Chemiresistive Gas Sensors Based on Highly Permeable Sn‐Doped Bismuth Subcarbonate Microspheres: Facile Synthesis, Sensing Performance, and Mechanism Study

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