The concentration of BTEX in selected urban areas of Malaysia during the COVID-19 pandemic lockdown

Hawari, Nor Syamimi Sufiera Limi; Latif, Mohd Talib; Hamid, Haris Hafizal Abd; Leng, Teoh Hwai; Othman, Murnira; Mohtar, Anis Asma Ahmad; Azhari, Azliyana; Dominick, Doreena

doi:10.1016/j.uclim.2022.101238

Cited by 11 publications

(2 citation statements)

References 43 publications

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“…Investigations of Hawari et al 40 performed in urban areas of Malaysia indicated positive correlations of BTEX concentrations with relative humidity, however negative correlations with wind speed, solar radiation, and air temperature. Study of Popitanu et al 41 in the ambient air of Arad city, Romania, revealed that the increase of the BTEX concentrations in winter season was related with the usage of fuels in the central heating season.…”

Section: Resultsmentioning

confidence: 90%

Summer and winter variations of BTEX concentrations in an oil refinery complex and health risk assessment based on Monte-Carlo simulations

Khoshakhlagh,

Yazdanirad,

Mousavi

et al. 2023

Sci Rep

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The summer and winter concentrations of BTEX pollutants were investigated in various workplaces of an oil Refinery, Iran. In total 252 air samples from the breathing zones of the following employees were collected: supervisors, safetymen, repairmen, site men, and all workers. Carcinogenic and non-carcinogenic risk values were calculated based on the USEPA methodology using Monte Carlo simulations. BTEX concentrations were higher in the summer than in the winter season for all workstations, especially for toluene and ethylbenzene. The mean values of exposure to benzene for repairmen and site men were higher than threshold limit value of 1.60 mg/m3 for both seasons. Non-carcinogenic risk (HQ) values calculated for summer season for benzene, ethylbenzene, and xylene in all workstations, as well as for toluene for repairmen and site men exceeded acceptable level of 1. In winter season the mean HQ values for benzene and xylene in all workstations, for toluene for repairmen and site men, and for ethylbenzene for supervisors, repairmen, and site men were also > 1. For all workstations definite carcinogenic risk was indicated as calculated LCR values for benzene and ethylbenzene exposure were higher than 1 × 10–4 in both summer and winter seasons.

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Section: Resultsmentioning

confidence: 90%

Summer and winter variations of BTEX concentrations in an oil refinery complex and health risk assessment based on Monte-Carlo simulations

Khoshakhlagh,

Yazdanirad,

Mousavi

et al. 2023

Sci Rep

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“…In addition to being a VOC, BTEX is one of the most prevalent chemical compounds that can be found in landfills. BTEX is a chemical that has the potential to cause cancer in humans and has also been shown to have other negative effects on human health [34,35]. Toluene and xylene both have the potential to cause damage to the nervous system as well as the reproductive system.…”

Section: Impact Of Disposable Fm On the Environment And Human Healthmentioning

confidence: 99%

Environmental and Human Health Impact of Disposable Face Masks During the COVID-19 Pandemic: Wood-Feeding Termites as a Model for Plastic Biodegradation

Al-Tohamy

Ali

Zhang

et al. 2022

Appl Biochem Biotechnol

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The ongoing COVID-19 pandemic has resulted in an unprecedented form of plastic pollution: personal protective equipment (PPE). On the eve of the COVID-19 pandemic, there is a tremendous increase in the production of plastic-based PPE. To control the spread of the virus, face masks (FMs) are used as primary PPE. Thus, the production and usage of FM significantly increased as the COVID-19 pandemic was still escalating. The primary raw materials for the manufacturing of FMs are non-biodegradable synthetic polymers derived from petrochemicals. This calls for an urgent need to develop novel strategies for the efficient degradation of plastics. Furthermore, most of these masks contain plastic or other derivatives of plastic. The extensive usage of FM generates millions of tons of plastic waste for the environment in a short span of time. However, their degradation in the environment and consequences are poorly understood. Therefore, the potential impacts of disposable FM on the environment and human health during the COVID-19 pandemic are clarified in the present study. Despite structural and recalcitrance variations, lignocellulose and plastic polymers have physicochemical features, including carbon skeletons with comparable chemical bonds as well as hydrophobic properties in amorphous and crystalline regions. In this review, we argue that there is much to be learned from termites by transferring knowledge from research on lignocellulose degradation by termites to that on plastic waste.

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Identify Primary Air Pollution Sources of BTEX by Using Positive Matrix Factorization (PMF): A Case Study of Ho Chi Minh City, Vietnam

Nguyễn¹,

Hoang²,

Nguyen³

et al. 2023

Arch Environ Contam Toxicol

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The concentration of BTEX in selected urban areas of Malaysia during the COVID-19 pandemic lockdown

Cited by 11 publications

References 43 publications

Summer and winter variations of BTEX concentrations in an oil refinery complex and health risk assessment based on Monte-Carlo simulations

Summer and winter variations of BTEX concentrations in an oil refinery complex and health risk assessment based on Monte-Carlo simulations

Environmental and Human Health Impact of Disposable Face Masks During the COVID-19 Pandemic: Wood-Feeding Termites as a Model for Plastic Biodegradation

Identify Primary Air Pollution Sources of BTEX by Using Positive Matrix Factorization (PMF): A Case Study of Ho Chi Minh City, Vietnam

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