Airborne mycotoxins in waste recycling and recovery facilities: Occupational exposure and health risk assessment

Schlosser, O.; Salais, Robert; Noyon, N.

doi:10.1016/j.wasman.2020.02.031

Cited by 26 publications

(19 citation statements)

References 54 publications

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“…The latest studies included assessing four metabolite concentrations: aflatoxin B1, gliotoxin, ochratoxin A and sterigmatocystin. The authors detected in the air only aflatoxin B1 and sterigmatoxin at concentrations lower than ng m −3 [36].…”

Section: Secondary Metabolitesmentioning

confidence: 93%

Microbiological and Toxicological Hazards in Sewage Treatment Plant Bioaerosol and Dust

Szulc

Okrasa

Majchrzycka

et al. 2021

Toxins

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Despite the awareness that work in the sewage treatment plant is associated with biological hazards, they have not been fully recognised so far. The research aims to comprehensively evaluate microbiological and toxicological hazards in the air and settled dust in workstations in a sewage treatment plant. The number of microorganisms in the air and settled dust was determined using the culture method and the diversity was evaluated using high-throughput sequencing. Endotoxin concentration was assessed with GC-MS (gas chromatography-mass spectrometry) while secondary metabolites with LC-MS/MS (liquid chromatography coupled to tandem mass spectrometry). Moreover, cytotoxicity of settled dust against a human lung epithelial lung cell line was determined with the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay and UHPLC-Q-ToF-UHRMS (ultra-high-performance liquid chromatography-quadrupole time-of-flight ultrahigh-resolution mass spectrometry) analysis was performed to determine the source of cytotoxicity. The total dust concentration in the sewage treatment plant was low and ranged from 0.030 mg m−3 to 0.044 mg m−3. The highest microbiological contamination was observed in sludge thickening building and screenings storage. Three secondary metabolites were detected in the air and sixteen in the settled dust. They were dominated by compounds typical of lichen and plants and Aspergillus, Penicillium and Fusarium genera mould. The settled dust from the sludge thickening building revealed high cytotoxicity to human lung epithelial cells A-549 (IC50 = 6.98 after 72 h). This effect can be attributed to a biocidal compound—didecyldimethylammonium chloride (DDAC-C10) and seven toxic compounds: 4-hydroxynonenal, carbofuran, cerulenin, diethylphosphate, fenpropimorph, naphthalene and onchidal. The presence of DDAC-C10 and other biocidal substances in the sewage treatment plant environment may bring negative results for biological sewage treatment and the natural environment in the future and contribute to microorganisms’ increasing antibiotics resistance. Therefore, the concentration of antibiotics, pesticides and disinfectants in sewage treatment plant workstations should be monitored.

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Section: Secondary Metabolitesmentioning

confidence: 93%

Microbiological and Toxicological Hazards in Sewage Treatment Plant Bioaerosol and Dust

Szulc

Okrasa

Majchrzycka

et al. 2021

Toxins

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“…Additionally, exposure to mycotoxins can also be due to inhalation or absorption through the skin (Schlosser et al, 2020). Nevertheless, regardless of the contamination route (ingestion, inhalation, or absorption), mycotoxin exposure may result in sickness, lowered performance, and even death in humans and animals.…”

Section: Mycotoxins and Mycotoxigenic Fungi In Foods And Feedsmentioning

confidence: 99%

Strategies for controlling and decontaminating mycotoxins in foods and feeds: A review

Mshelia,

Selamat,

Samsudin

2023

IFRJ

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Mycotoxins are naturally occurring chemical compounds produced by certain genera, such as Aspergillus, Fusarium, and Penicillium, as by-products of their metabolism (secondary metabolites). They are plant pathogens able to cause infection pre-, during, and post-harvest. The most important and economically-relevant mycotoxins of great concern to humans, plants, and animals are aflatoxins, ochratoxin A, fumonisins, and trichothecenes. The present review aimed to compile updated management strategies of mycotoxins in foods and feeds, including control and detoxification techniques. Generally, the strategies are divided into physical, chemical, and biological, and can be implemented during pre-, harvest, and post-harvest. Physical controls pre-harvest includes the development and planting of resistant varieties; during harvest include control of field infections, timely harvest, sufficient drainage, and physical barriers; and post-harvest include storage of harvested commodities under conditions that would prevent and exclude the growth and mycotoxin production by mycotoxigenic fungi. Chemical controls generally involve the use of chemically synthesised fungicides which are often associated with long-term effects on the environment. When compared with chemical and physical controls, biological controls are generally more unique, productive, and environmentally friendly, and when implemented appropriately in the Integrated Pest Management (IPM) strategy, can collectively control the growth and proliferation of mycotoxigenic, and reduce the incidence of mycotoxin production and contamination in foods and feeds.

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“…Among other agents, humidity conditions in most waste management facilities favor the growth of fungi. Some of these fungi can produce mycotoxins, some of them can be harmful to health (Schlosser et al, 2020). Besides, employees may be exposed to other different pathogenic microorganisms inherent in the handling of plastic waste.…”

Section: Independent Journal Of Management and Production (Ijmandp)mentioning

confidence: 99%

Evaluation of occupational safety conditions in a waste plastic recycling plant in Brazil

Soares

Sousa

Santos

2021

Ind. Jour. Manag. & Prod.

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The adequacy of working conditions to safety standards has a fundamental importance in the company's environment. The efficient implementation of an Occupational Health and Safety Management System allows the reduction of risks associated with accidents; reduce costs to the employer and a strong ally in the competitive market when the safety indicator is a decisive factor in the choice of suppliers. The aim of this study was to evaluate occupational safety and health (OSH) practices at work in a plastic recycling plant located in northeastern Brazil, as well as to identify opportunities for improvement. Data collection was carried out from on-site visits and control measures were proposed for the risk factors identified. The evaluation made it possible to identify that the recycling activity is characterized by several occupational hazards, which are aggravated by inadequate working conditions. The non-conformity of jobs, the use of obsolete equipment and the lack of specific training to perform certain functions were identified as the most relevant aspects. For these, opportunities for improvement and adequation were connected. The study results can help other companies that perform the same activities to improve their performance in OSH based on the points of improvement presented.

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Airborne mycotoxins in waste recycling and recovery facilities: Occupational exposure and health risk assessment

Cited by 26 publications

References 54 publications

Microbiological and Toxicological Hazards in Sewage Treatment Plant Bioaerosol and Dust

Microbiological and Toxicological Hazards in Sewage Treatment Plant Bioaerosol and Dust

Strategies for controlling and decontaminating mycotoxins in foods and feeds: A review

Evaluation of occupational safety conditions in a waste plastic recycling plant in Brazil

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