Quantifying the ambient formaldehyde sources utilizing tracers

Li, Mei; Shao, Min; Li, Lingyu; Lü, Sihua; Chen, Wentai; Wang, Chen

doi:10.1016/j.cclet.2014.07.001

Cited by 26 publications

(19 citation statements)

References 22 publications

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“…However, most emission sources of indoor VOCs are continuous and slow release (Manoukian et al, 2016). Gaseous HCHO can be removed by many pathways, including diffusion, adsorption, polymerization, photolysis and photocatalytic oxidation decomposition (Li et al, 2014). Our results demonstrate plants have an advantage in treating chronic pollution and the residual pollutants in ambient air.…”

Section: Performance Evaluation Of Plants On Volatile Hcho Removalmentioning

confidence: 69%

Investigation of A Potted Plant (Hedera helix) with Photo-Regulation to Remove Volatile Formaldehyde for Improving Indoor Air Quality

Chen

Lin

Chuah

2017

Aerosol Air Qual. Res.

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Formaldehyde is the most common volatile organic compound (VOC) emitted from household materials and is associated with many health risks, including sick building syndrome. A potted Hedera helix was used as an air purifier to remove the gaseous formaldehyde. Development of a test platform is necessary to evaluate the indoor performance of air cleaning protocols. The box modulation with a novel volatile pollutant-emitting source was applied in an air quality monitoring experiment to mimic a non-ventilated workplace. The environmental conditions and the pollutant concentrations in the air were measured in real time, and the monitoring data was uploaded to cloud storage media by a wireless technique. Compared with natural dissipation, our results demonstrate a 70% decrease in the required time to achieve 1.0 ppm of gaseous formaldehyde using the biological purifier. In addition, the effect of photo-regulation was not significant in the use of potted plants to remove gaseous formaldehyde. Our study provides an accurate and available platform for the public to determine the health risks of VOCs in their buildings.

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Section: Performance Evaluation Of Plants On Volatile Hcho Removalmentioning

confidence: 69%

Investigation of A Potted Plant (Hedera helix) with Photo-Regulation to Remove Volatile Formaldehyde for Improving Indoor Air Quality

Chen

Lin

Chuah

2017

Aerosol Air Qual. Res.

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“…Many of their observations were elevated levels of the parameters over the recommended standards. Different source apportionment (Li et al, 2014;Ma et al, 2016), methodologies (Chen et al (2016); Shi et al (2016); Meˇciarová et al (2017); Lee et al (2018), and instruments (Jiao et al, 2015;Van den Bossche et al, 2016;Zikova et al, 2017;Lee et al, 2018) have been used to determine and identify air pollution parameters. In Nigeria, many studies have not been done on indoor air pollution in Nigeria, but few literates obtained were done in Enugu (Ezezue and Diogu, 2017), Warri (Akpofure, 2015), Ile -Ife (Afolabi et al, 2016), Ido Ekiti (Ayodele et al, 2016), No report has been found for indoor pollution from Akure.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Indoor Air Quality of Akure, South – West, Nigeria

Abulude¹,

Fagbayide

Akinnusotu

et al. 2019

QOL

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Air quality has been a major concern throughout the world, Nigeria inclusive. The monitoring of air quality involves indoor and outdoor air quality. In this study, our concern was on indoor air quality. The aim of this study was to assess the air quality of residential homes (17), classrooms (3), hospitals (2), offi ces (5), Shops (2), and laboratories (5) in Akure, Nigeria in terms of formaldehyde (HCHO), total volatile organic compound (TVOC), Particulate matter (PM 1.0 ; PM 2.5 , and PM 10 ). A Multifunction Air Detector was used for the assessment using the manufacturers' procedures and the locations were identifi ed using a Mini GPS. The results revealed as follows: HCHO (0.001-0.030 mg/ m 3 ), TVOC (0.003-362 mg/m 3 ), PM 1.0 (004-014 μg/m 3 ), PM 2.5 (006-020 μg/m 3 ), and PM 10 (006-022 μg/m 3 ). The results obtained were below the 24 h pollution recommended standards (0.1 mg/m 3 -HCHO; TVOC; 10-20 μ/m 3 PM) of EPA and WHO. Statistically, there were correlations within the pollutants and weather. The Indoor air quality (IAQ) depicted the areas as 'good,' and toxicity potential (TP) were below unity. Although the locations looked safe, it is recommended that constant monitoring of the indoors should be ensured and proper ventilation should be provided.

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“…Various source apportionment methods have been successfully utilized to identify primary and secondary HCHO sources Garcia et al, 2006;Li et al, 2014;Olaguer et al, 2013;Parrish et al, 2012;Zheng et al, 2013b). Due to the lack of carbonyl emission inventories, particularly in China, it is impractical to directly estimate HCHO emissions using emission factors.…”

Section: Introductionmentioning

confidence: 99%

“…Formaldehyde (HCHO) has been well recognized as one of the most abundant and important carbonyls in the atmosphere Lei et al, 2009;Li et al, 2014;Olaguer et al, 2013;Parrish et al, 2012;Rappenglück et al,ical near-ground concentration ranging from sub-ppbv levels in the rural area to ∼ 60 ppbv in highly polluted regions (Finlayson-Pitts and Pitts, 1999). HCHO plays a crucial role in atmospheric photochemistry.…”

Section: Introductionmentioning

confidence: 99%

Detection of formaldehyde emissions from an industrial zone in the Yangtze River Delta region of China using a proton transfer reaction ion-drift chemical ionization mass spectrometer

Diao

Zhang

et al. 2016

Atmos. Meas. Tech.

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Abstract. A proton transfer reaction ion-drift chemical ionization mass spectrometer (PTR-ID-CIMS) equipped with a hydronium (H + 3 O) ion source was developed and deployed near an industrial zone in the Yangtze River Delta (YRD) region of China in spring 2015 to investigate industryrelated emissions of volatile organic compounds (VOCs). Air pollutants including formaldehyde (HCHO), aromatics, and other trace gases (O 3 and CO) were simultaneously measured. Humidity effects on the sensitivity of the PTR-ID-CIMS for HCHO detection were investigated and quantified. The performances of the PTR-ID-CIMS were also validated by intercomparing with offline HCHO measurement technique using 2,4-dinitrophenylhydrazone (DNPH) cartridges and the results showed fairly good agreement (slope = 0.81, R 2 = 0.80). The PTR-ID-CIMS detection limit of HCHO (10 s, three-duty-cycle averages) was determined to be 0.9-2.4 (RH = 1-81.5 %) parts per billion by volume (ppbv) based on 3 times the standard deviations of the background signals. During the field study, observed HCHO concentrations ranged between 1.8 and 12.8 ppbv with a campaign average of 4.1 ± 1.6 ppbv, which was comparable with previous HCHO observations in other similar locations of China. However, HCHO diurnal profiles showed few features of secondary formation. In addition, time series of both HCHO and aromatic VOCs indicated strong influence from local emissions. Using a multiple linear regression fit model, on average the observed HCHO can be attributed to secondary formation (13.8 %), background level (27.0 %), and industryrelated emissions, i.e., combustion sources (43.2 %) and chemical productions (16.0 %). Moreover, within the plumes the industry-related emissions can account for up to 69.2 % of the observed HCHO. This work has provided direct evidence of strong primary emissions of HCHO from industryrelated activities. These primary HCHO sources can potentially have a strong impact on local and regional air pollution formation in this area of China. Given the fact that the YRD is the largest economic zone in China and is dense with petrochemical industries, primary industrial HCHO emissions should be strictly monitored and regulated.

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Quantifying the ambient formaldehyde sources utilizing tracers

Cited by 26 publications

References 22 publications

Investigation of A Potted Plant (Hedera helix) with Photo-Regulation to Remove Volatile Formaldehyde for Improving Indoor Air Quality

Investigation of A Potted Plant (Hedera helix) with Photo-Regulation to Remove Volatile Formaldehyde for Improving Indoor Air Quality

Assessment of the Indoor Air Quality of Akure, South – West, Nigeria

Detection of formaldehyde emissions from an industrial zone in the Yangtze River Delta region of China using a proton transfer reaction ion-drift chemical ionization mass spectrometer

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