The emission characteristic of VOCs and the toxicity of BTEX from different mosquito-repellent incenses

Lu, Fengju; Li, Shuhao; Shen, Boxiong; Zhang, Jianwei; Liu, Lijun; Shen, Xiaoqian; Zhao, Rui

doi:10.1016/j.jhazmat.2019.121428

Cited by 33 publications

(20 citation statements)

References 38 publications

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“…In this study, adult male smokers (Chinese) were chosen to evaluate the human health risk from three types of tobacco products according to the lifetime cancer risk (LCR) and hazard index (HI) [35,36].…”

Section: Risk Assessment Of Different Types Of Tobacco Productsmentioning

confidence: 99%

“…According to the equal exposure dose of nicotine, the health risks of the three types of tobacco products were calculated. HI, used as the noncarcinogenic health risk indicator of smoking, was determined according to Equation (3) [35,37].…”

Section: Risk Assessment Of Different Types Of Tobacco Productsmentioning

confidence: 99%

“…Although the emission content of aromatic hydrocarbons was not the highest, its toxicity to the human body is higher than that of other VOCs, especially benzene, toluene, ethylbenzene, and xylene (BTEX). It has been reported that high concentrations of BTEX can damage the lungs and nervous system and even cause cancer [35]. Xie et al analysed the mainstream smoke constituent yields from twenty Chinese cigarette brands.…”

Section: Analysis Of the Types And Concentrations Of Vocsmentioning

confidence: 99%

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The Emission of VOCs and CO from Heated Tobacco Products, Electronic Cigarettes, and Conventional Cigarettes, and Their Health Risk

Chen³

et al. 2021

Toxics

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The differences in aerosol composition between new tobacco types (heated tobacco products and electronic cigarettes) and conventional cigarettes have not been systematically studied. In this study, the emissions of volatile organic compounds (VOCs), carbon monoxide (CO), nicotine, and tar from heated tobacco products (HTPs), electronic cigarettes (e-cigarettes) and conventional cigarettes were compared, and their health risks were evaluated by applying the same smoking regime and a loss mechanism of smoking. Twenty VOCs were identified in aerosols from HTPs, 18 VOCs were identified in aerosols from e-cigarettes, and 97 VOCs were identified in aerosols from cigarettes by GC–MS and HPLC analysis. The concentrations of total VOCs (TVOCs) emitted by the three types of tobacco products decreased as follows: e-cigarettes (795.4 mg/100 puffs) > cigarettes (83.29 mg/100 puffs) > HTPs (15.65 mg/100 puffs). The nicotine content was 24.63 ± 2.25 mg/100 puffs for e-cigarettes, 22.94 ± 0.03 mg/100 puffs for cigarettes, and 8.817 ± 0.500 mg/100 puffs for HTPs. When using cigarettes of the same brand, the mass concentrations of VOCs, tar, and CO emitted by HTPs were approximately 81.2%, 95.9%, and 97.5%, respectively, lower than the amounts emitted by cigarettes. The health risk results demonstrated that the noncarcinogenic risk of the three types of tobacco products decreased as follows: cigarettes (3609.05) > HTPs (2449.70) > acceptable level (1) > e-cigarettes (0.91). The lifetime cancer risk (LCR) decreased as follows: cigarettes (2.99 × 10−4) > HTPs (9.92 × 10−5) > e-cigarettes (4.80 × 10−5) > acceptable level (10−6). In general, HTPs and e-cigarettes were less harmful than cigarettes when the emission of VOCs and CO was considered.

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Section: Risk Assessment Of Different Types Of Tobacco Productsmentioning

confidence: 99%

Section: Risk Assessment Of Different Types Of Tobacco Productsmentioning

confidence: 99%

Section: Analysis Of the Types And Concentrations Of Vocsmentioning

confidence: 99%

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The Emission of VOCs and CO from Heated Tobacco Products, Electronic Cigarettes, and Conventional Cigarettes, and Their Health Risk

Chen³

et al. 2021

Toxics

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“…Ketones, such as methyl ethyl ketone and methyl isobutyl ketone, are toxic chemicals that are widely used in industrial solvents 28 ; inhalation of their vapors and skin contact with liquid ketones are the main routes of human exposure to these compounds 6 . Several studies have shown BTEX pollutants to have a significant adverse impact on human health and classified them as hazardous because they cause serious pathologic conditions, such as asthma, inflammatory disorders, central nervous system dysfunction, and DNA damage, which can potentially lead to cancer 29 , 30 . In plants, high O 3 concentrations affect the growth and yield, whereas in human beings it has been known to exert harmful effects on the eyes and respiratory system, resulting in reduced lung capacity, respiratory distress, etc.…”

Section: Resultsmentioning

confidence: 99%

Species and characteristics of volatile organic compounds emitted from an auto-repair painting workshop

Song

Chun

2021

Sci Rep

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Volatile organic compounds (VOCs) are secondary pollutant precursors having adverse impacts on the environment and human health. Although VOC emissions, their sources, and impacts have been investigated, the focus has been on large-scale industrial sources or indoor environments; studies on relatively small-scale enterprises (e.g., auto-repair workshops) are lacking. Here, we performed field VOC measurements for an auto-repair painting facility in Korea and analyzed the characteristics of VOCs emitted from the main painting workshop (top coat). The total VOC concentration was 5069–8058 ppb, and 24–35 species were detected. The VOCs were mainly identified as butyl acetate, toluene, ethylbenzene, and xylene compounds. VOC characteristics differed depending on the paint type. Butyl acetate had the highest concentration in both water- and oil-based paints; however, its concentration and proportion were higher in the former (3256 ppb, 65.5%) than in the latter (2449 ppb, 31.1%). Comparing VOC concentration before and after passing through adsorption systems, concentrations of most VOCs were lower at the outlets than the inlets of the adsorption systems, but were found to be high at the outlets in some workshops. These results provide a theoretical basis for developing effective VOC control systems and managing VOC emissions from auto-repair painting workshops.

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“…All together there are eight compounds occupying 74.67% area in GC-MS chromatogram of DCLE, are marked as significant odorant chemical that can attract mosquitoes (Table 1). Cumene S [12] 2.97 Mesitylene S [12] 0.85 Sabinene S [12] ; M [13] 0.95 Durene S [14] 6.03 Dodecane S [12] ; M [15] ; O [11] 0.53 3-hexen-1-ol, propanoate, (z)-O (being a carboxylic acid) 1.09 Octane, 3-ethyl-2,7-dimethyl-S [12] 17.41 Tetradecane M [16] ; O [11] 1.42 Germacrene D S [12] ; M [17]…”

Section: Gas Chromatography-mass Spectrometry Analysismentioning

confidence: 99%

GC-MS analysis reveals Dendrobium candidum is a mosquito-attractant orchid with mosquitocidal compounds

Majumder¹,

Ghosh²,

Chakraborty³

et al. 2020

Int. J. Mosq. Res.

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Mosquito, the infamous vector organism, is responsible for outbreaks of several deadly epidemics. Semiochemicals or pheromones and some other compounds released from several plants and animals have ability to attract mosquitoes. Heneicosane is one of such compounds reported from some plants that attracts mosquitoes, especially Aedes spp. (vector of dengue). Through our experiment based on GC-MS analysis, we report that leaf of Dendrobium candidum Wall. ex Lindl, a local orchid of Darjeeling Himalayas, is a source of heneicosane along with several other semiochemicals and odorants that can target mosquitoes. Interestingly, the orchid sample has revealed a number of components having insecticidal activities against mosquitoes which can have made this orchid a complete mosquito-bait. This research invites interest for Dendrobium candidum as a mosquito attractant and killer. For this unique property, we recommend this orchid leaf extract as a bait for dengue vector Aedes mosquito.

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The emission characteristic of VOCs and the toxicity of BTEX from different mosquito-repellent incenses

Cited by 33 publications

References 38 publications

The Emission of VOCs and CO from Heated Tobacco Products, Electronic Cigarettes, and Conventional Cigarettes, and Their Health Risk

The Emission of VOCs and CO from Heated Tobacco Products, Electronic Cigarettes, and Conventional Cigarettes, and Their Health Risk

Species and characteristics of volatile organic compounds emitted from an auto-repair painting workshop

GC-MS analysis reveals Dendrobium candidum is a mosquito-attractant orchid with mosquitocidal compounds

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