Mobile monitoring of VOCs and source identification using two direct-inlet MSs in a large fine and petroleum chemical industrial park

Huang, Yinzhi; Che, Xiang; Jin, Dan; Xiu, Guangli; Duan, Lian; Wu, Yifan; Gao, Song; Duan, Yusen; Fu, Qingyan

doi:10.1016/j.scitotenv.2022.153615

Cited by 10 publications

(3 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Total volatile organic compounds, expressed as non-methane volatile organic compounds (NMVOCs), including aromatic hydrocarbons (benzene, toluene, ethyl-benzene, and ortho-, meta-, and para-xylene, etc.) with moderate volatility, are found in different concentrations in urban and suburban regions [5][6][7][8][9][10], shoreline areas [11], and industrial zones [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Assessing Benzene and TVOC Pollution and the Carcinogenic and Noncarcinogenic Risks to Workers in an Industrial Plant in Southeastern Romania

Barbeş,

Bărbulescu,

Barbeș

2024

Toxics

View full text Add to dashboard Cite

The article aims to analyze the pollution with Volatile Organic Compounds (VOC) emitted from the biggest refinery in Romania, using the daily and monthly series registered for two years in two sites on the industrial platform, and the carcinogenic and noncarcinogenic risks for workers at the industrial plant. Since the values of the basic statistics (minimum, maximum, and average) and outliers indicate that most recorded values exceed the maximum admissible limits established by law, the Peaks Over Threshold (POT) method was utilized to model the maximum values of the series and determine the return levels for benzene and total VOC (TVOC). Given the high values obtained for relatively short return periods, indicating potential danger for the workers, we assessed the noncarcinogenic and carcinogenic risks to benzene and TVOC exposure by computing the hazard index (HI) and lifetime cancer risk (LCR). The results indicate that 43.75% of the HI values are above 1, indicating a relatively high noncarcinogenic risk for different categories of workers. LRC indicates a high LRC for 93.75% of the workers in all considered categories exposed to TVOC.

show abstract

Section: Introductionmentioning

confidence: 99%

Assessing Benzene and TVOC Pollution and the Carcinogenic and Noncarcinogenic Risks to Workers in an Industrial Plant in Southeastern Romania

Barbeş,

Bărbulescu,

Barbeș

2024

Toxics

View full text Add to dashboard Cite

show abstract

“…Part of the problem stems from the complexity of the air mixture and the sophistication that is required for ultraraces analysis of organic chemicals. Recently, there has been signi cant progress in analyzing airborne VOCs through pre-concentrators coupled with GC-MS, (Huang et al, 2022;Kamarulzaman et al, 2019;Lahlou et al, 2011)capable of capturing more than one hundred trace amounts of ozone-depleting substances, which provides a reliable means for more in-depth study and analysis of the association between airborne VOCs and disease. Recent years lots of researchers have done many pioneering studies on the analysis of VOCs in ambient air (Sun, Wang, et al, 2019;Zeng et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Concentration levels of VOCs in ambient air and health assessment of respiratory diseases in petrochemical cities in western China

Chang,

Wang,

Ding

et al. 2023

Preprint

View full text Add to dashboard Cite

99 Volatile Organic Compounds (VOCs), except aldehydes and ketones, were measured in both PAMS and TO-15 methods in urban and suburban areas of Lanzhou, a petrochemical industry city located in northwest China, between 2021 and 2022. The collected data was analyzed to investigate the seasonal trends in air pollution and its correlation with respiratory diseases in Lanzhou. The average annual concentrations of VOCs were found to be 121 ppbv for urban living areas, 165 ppbv for industrial areas, and 114 ppbv for background areas, with industrial areas having the highest concentration. The VOCs comprise various organic compounds, including alkanes, olefins, halogenated hydrocarbons, and aromatic hydrocarbons, which serve as organic tracers of specific marker molecules or their sources. Using principal component analysis, the species were grouped by the maximum variance method, and the VOCs concentration levels were scored for different regions. The associated changes were then calculated based on the number of respiratory morbidity cases reported from public health hospitals in each region. The results indicate association between VOCs concentration levels and the onset of respiratory illnesses during the fall and winter seasons. Thus, reducing the emissions of VOCs during the fall and winter months can effectively mitigate the public health risks associated with respiratory illnesses.

show abstract

“…However, VOC monitoring can be very challenging due to the fact that VOCs are often composed of a large number of organic compounds at very low concentrations. For example, the value of indoor gaseous formaldehyde should be less than 0.08 ppm, according to the World Health Organization (WHO) [16]; total VOCs in a chemical industry park can be as low as 28.4 ppb [17]. Therefore, sensitive detection methods should be adopted for the analysis of VOCs.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a Novel Solid Phase Microextraction Fiber for Headspace GC-MS Analysis of Hazardous Odorants in Landfill Leachate

et al. 2022

Processes

View full text Add to dashboard Cite

The practice of odorant analysis can often be very challenging because odorants are usually composed of a host of volatile organic compounds (VOCs) at low concentrations. Preconcentration with solid phase microextraction (SPME) is a conventional technique for the enrichment of these volatile compounds before analysis by headspace gas chromatography-mass spectrometry (GC-MS). However, commercially available SPME products usually bear the defects of weak mechanical strength and high cost. In this work, novel SPME fibers were prepared by a one-pot synthesis procedure from divinylbenzene (DVB), porous carbon powder (Carbon) and polydimethylsiloxane (PDMS). Factors that influence the extraction efficiency, such as extraction temperature, extraction time, salting effects, pH, stirring rate, desorption temperature and time, were optimized. VOCs in landfills pose a great threat to human health and the environment. The new SPME fibers were successfully applied in the analysis of VOCs from the leachate of a cyanobacteria landfill. Quantification methods of major odor contributors were established, and a good linearity (r > 0.998) was obtained, with detection limits in the range of 0.30–0.50 ng/L. Compared to commercial SPME fibers, the new material has higher extraction efficacy and higher precision. Hence, it is suitable for the determination of hazardous odorants of various sources.

show abstract

Mobile monitoring of VOCs and source identification using two direct-inlet MSs in a large fine and petroleum chemical industrial park

Cited by 10 publications

References 25 publications

Assessing Benzene and TVOC Pollution and the Carcinogenic and Noncarcinogenic Risks to Workers in an Industrial Plant in Southeastern Romania

Assessing Benzene and TVOC Pollution and the Carcinogenic and Noncarcinogenic Risks to Workers in an Industrial Plant in Southeastern Romania

Concentration levels of VOCs in ambient air and health assessment of respiratory diseases in petrochemical cities in western China

Preparation of a Novel Solid Phase Microextraction Fiber for Headspace GC-MS Analysis of Hazardous Odorants in Landfill Leachate

Contact Info

Product

Resources

About