Occupational formaldehyde exposure linked to increased systemic health impairments and counteracting beneficial effects of selected antioxidants

Tesfaye, Solomon; Hamba, Niguse; Gerbi, Asfaw; Negeri, Zenebe

doi:10.1080/20905068.2021.1926172

Cited by 8 publications

(7 citation statements)

References 55 publications

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“…The oxidation of methane can and does produce a wide range of carbon-containing products such as methanol, formic acid, formaldehyde, carbon monoxide, as well as CO 2 . While methanol is commonly the desired product industrially due to its value as a potential liquid fuel and versatile chemical feedstock [29], its reactivity is limited at ambient temperature and pressures. Alternatively, formaldehyde is a flexible chemical reagent, capable of homopolymerization [30] and condensation with alcohols and amines to form solid materials and hydrogels even at ambient temperatures [31,32].…”

Section: Discussion Of Chemistrymentioning

confidence: 99%

Mitigation of ventilation air methane (VAM) using novel methanotrophic coating materials: a technical analysis

Lundberg,

Kim,

Parviz

et al. 2023

Environ. Res. Lett.

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Ventilation Air Methane (VAM) is a potent greenhouse gas source originating from geological wells, current and extinct mineshafts and other terrestrial conduits venting methane to the atmosphere, contributing to global methane emissions and disproportionate warming potential. Herein, we introduce the concept of the methanotrophic material as an engineering solution. Such materials should be capable of converting methane at ambient temperatures and pressures to a binder product, capturing and permanently sequestering the methane while simultaneously restricting its further emission. While such materials are currently under research development, this goal is supported and facilities by the mathematical framework, introduced and used herein, to evaluate the ability to convert methane, using currently published activity data. We include a case study of the conversion of a characteristic stream of ventilation air methane (0.6% methane in air, 1.7⋅108 L hr-1 equivalent to 100,000 standard cubic feet per minute). We show that when appropriately designed, such systems require a surface coverage of less than 1,000 meters of mine tunnel length (equivalent to 20,000 m2 areal coverage) in order to reduce the methane emission from this stream by over 99%. Finally, we highlight formaldehyde as a reactive intermediate of methane oxidation which may itself be incorporated into these coating materials. As a component of binders and polymers already used ubiquitously in commercial products, this intermediate ultimately allows these systems to sequester the carbon from methane in a stable and solid form. The results presented here are easily extended to the treatment of other methane streams—either more concentrated or dilute—and the results herein will guide the design and development of a new class of carbon-negative materials.

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Section: Discussion Of Chemistrymentioning

confidence: 99%

Mitigation of ventilation air methane (VAM) using novel methanotrophic coating materials: a technical analysis

Lundberg,

Kim,

Parviz

et al. 2023

Environ. Res. Lett.

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“…Acrylamide is genotoxic and can be a probable carcinogen according to IARC (International Agency for Research on Cancer), its intake affects the central nervous system, and dermal exposure leads to skin peeling, while dietary ingestion results in ovarian cancer (Li et al, 2021). Formaldehyde is a known carcinogen enters the body through eye contact, inhalation or via skin, its exposure causes headaches, anosmia, cough, sore throat, chest pain, breathing issues, nose-bleeding, nausea, appetite loss, irritation in the eyes, skin, and throat, vomiting and confusion, while long-term exposure results in contact dermatitis, heart disease, cancer and asthma in children (Asare-Donkor et al, 2020; Yang et al, 2020; Tesfaye et al, 2021). Tetrachloroethylene exposure damages the kidney and produces respiratory irritation, several neurological effects like headache and coma, liver injury, unconsciousness, loss of color vision, developmental effects including growth retardation, menstrual disorder, spontaneous abortions, and some birth defects are reported.…”

Section: Introductionmentioning

confidence: 99%

Distribution and temporal variation of total volatile organic compounds concentrations associated with health risk in Punjab, India

Singh

Ulman³

et al. 2023

Preprint

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This study demonstrates the substantial changes in the concentration of VOCs in the urban area (Punjab) due to the lockdown effects. We analyzed the data for BTEX over the three years (January to December 2019 to 2021) with pairwise comparison and trend analysis for pre-, during, and post-pandemic periods. The results indicate a substantial reduction in the mean TVOCs concentration for all the monitoring stations was found to be 8.89 ± 1.80, 5.59 ± 1.71, and 5.57 ± 1.43 µg/m3 for before, during, and post-pandemic, respectively. The level of TVOCs declined by -43% for all monitoring stations during the lockdown period compared to the previous years. However, after the lockdown, an increase in the concentration of TVOC by 16% was observed in unlock; this may be due to the re-opening of commercial places, various industries, and transportation, as they are responsible for emissions of BTEX. This reduction indicates an overall improvement in the VOCs due to restrictions on transportation, construction, and the industrial sectors during the lockdown. Despite the overall decreasing trend of VOCs level, few monitoring stations indicate less variation due to meteorological effects. A Higher T/B ratio was found in Patiala (2.97 µg/m3) before the pandemic, which may indicate vehicle (traffic) emission sources and evaporative emission of solvent. The higher level of TVOCs was associated with mobile emission sources and industrial activities. The LCR values for benzene were found to be higher in children than in males and females, which indicated the possible risk. The LCR values for benzene exceeded the prescribed value by CPCB for children.

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“…A colorless, toxic, potentially carcinogenic, watersoluble gas, with the formula CH 2 O, having a suffocating odor, usually derived from methyl alcohol by oxidation: used chiefly in aqueous solution, as a disinfectant and preservative, and in the manufacture of various resins and plastics. The toxic effects of formaldehyde and formalin were described in literature such as bronchitis, pneumonia, gastritis, myositis [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. The concept of health security corresponds to the control of risks that can alter the state of human health.…”

Section: Introductionmentioning

confidence: 99%

Removal of Chromium (Cr) and Formaldehyde [CH<sub>2</sub>O (H−CHO)] from Leather Tannery Effluents Using Electrocoagulation Treatment Process

Elarbaoui¹

2023

Pol. J. Environ. Stud.

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Pollution with contaminants from effluents of industrial units constitutes a danger to health and environment. This is the case of chromium (Cr) and formaldehyde [CH 2 O (H−CHO)] contained in leather tannery effluents, identified and characterized by ICP-OES (Inductively coupled plasma -optical emission spectrometry) and HPLC (High Performance Liquid Chromatography). The levels recorded for these two contaminants in wastewater constitute an environmental risk of average degree. The treatment of this wastewater by electrocoagulation completely eliminates chromium and reduces organic pollution by 65%. We applied an electric current (I) of variable intensity (1 to 2.5 Ampere). The best results were obtained with the highest current intensity.

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Occupational formaldehyde exposure linked to increased systemic health impairments and counteracting beneficial effects of selected antioxidants

Cited by 8 publications

References 55 publications

Mitigation of ventilation air methane (VAM) using novel methanotrophic coating materials: a technical analysis

Mitigation of ventilation air methane (VAM) using novel methanotrophic coating materials: a technical analysis

Distribution and temporal variation of total volatile organic compounds concentrations associated with health risk in Punjab, India

Removal of Chromium (Cr) and Formaldehyde [CH<sub>2</sub>O (H−CHO)] from Leather Tannery Effluents Using Electrocoagulation Treatment Process

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