22 documents found, page 1 of 3
Unraveling the occupational exposure to mycotoxins in a waste management settin...
Martins, Carla; Viegas, Carla; Eriksen, Elke; Graff, Pål; Afanou, Anani Komlavi; Straumfors, Anne; Twarużek, Magdalena; Grajewski, Jan; Kosicki, RobertIntroduction: Waste management represents an occupational setting where fungi are significant contaminants. This study aimed to assess the exposure of waste workers to mycotoxins through a human biomonitoring study. Methods: Thirty-three workers and 19 controls provided spot urine samples to determine 10 mycotoxins’ urinary biomarkers using liquid chromatography coupled with mass spectrometry. Risk characteriza...
Mechanic protection gloves used in waste sorting industry: suitable as passive ...
Viegas, Carla; Dias, Marta; Almeida, Beatriz; Gomes, Anita Q.; Twarużek, Magdalena; Kosicki, Robert; Grajewski, Jan; Viegas, SusanaBackground: The high prevalence of airborne bacterial and fungal species in forklift cabinets from waste sorting units has already been described. Aspergillus spp. species are filamentous fungi commonly found in different environmental compartments, where they thrive as saprophytes. Several sections are reported as being mycotoxins producers. In Portuguese waste industries, personal protective equipment, such a...
Assessment of the microbial contamination of mechanical protection gloves used ...
Viegas, Carla; Twarużek, Magdalena; Dias, Marta; Almeida, Beatriz; Carolino, Elisabete; Kosicki, Robert; Soszczyńska, Ewelina; Grajewski, JanIn Portugal, mechanical protection gloves (MPG) are of mandatory use and during their use sweat is released and, consequently, the humidity of the material increases leading to conditions favorable to the growth of microorganisms. However, no studies have been conducted in MPG to assess the bioburden. This study intended to determine the bioburden present in MPG and their biological effects and to discuss the p...
Mycotoxins feed contamination in a dairy farm: potential implications for milk ...
Viegas, Susana; Assunção, Ricardo; Twaruźek, Magdalena; Kosicki, Robert; Grajewski, Jan; Viegas, CarlaDairy farming feed can be contaminated with mycotoxins affecting animals' health and milk quality. Additionally, dairy farming is an environment prone to occupational exposure to mycotoxins and feed is recognized as a contamination source of the workplace environment. An exploratory study was developed in a dairy farm located in Portugal intending to assess the mycotoxins present in the feed. All the samples an...
Are workers from waste sorting industry really protected by wearing filtering r...
Viegas, Carla; Dias, Marta; Almeida, Beatriz; Aranha Caetano, Liliana; Carolino, Elisabete; Gomes, Anita Quintal; Twarużek, Magdalena; Kosicki, RobertOne of the solutions for decreasing the workers' exposure to bioburden is the use of Filtering Respiratory Protective Devices (FRPD). As such it is important to determine whether these devices are fulfilling their protective role. This is the basis of the current study, aimed at characterizing bioburden retained by 120 FRPD (both in interior layers and in exhalation valves) through culture based-methods and mol...
Exposure assessment in one central hospital: a multi-approach protocol to achie...
Viegas, Carla; Almeida, Beatriz; Monteiro, Ana; Paciência, Inês; Rufo, João; Aguiar, Lívia; Lage, Bruna; Diogo Gonçalves, Lídia MariaThe bioburden in a Hospital building originates not only from patients, visitors and staff, but is also disseminated by several indoor hospital characteristics and outdoor environmental sources. This study intends to assess the exposure to bioburden in one central hospital with a multi-approach protocol using active and passive sampling methods. The microbial contamination was also characterized through molecul...
Exposure assessment in one central hospital: A multi-approach protocol to achie...
Viegas, Carla; Almeida, Beatriz; Monteiro, Ana; Paciência, Inês; Rufo, João; Aguiar, Lívia; Lage, Bruna; Gonçalves, Lídia; Caetano, Liliana AranhaThe bioburden in a Hospital building originates not only from patients, visitors and staff, but is also disseminated by several indoor hospital characteristics and outdoor environmental sources. This study intends to assess the exposure to bioburden in one central Hospital with a multi-approach protocol using active and passive sampling methods. The microbial contamination was also characterized through molecul...
Mycotoxins feed contamination in a dairy farm - potential implications for milk...
Viegas, Susana; Assunção, Ricardo; Twarużek, Magdalena; Kosicki, Robert; Grajewski, Jan; Viegas, CarlaDairy farming feed can be contaminated with mycotoxins, affecting animals' health and milk quality. Dairy farming is also prone to occupational exposure to mycotoxins, and feed is recognized as a source of contamination in the workplace. An exploratory study was developed in a dairy farm located in Portugal intending to assess the mycotoxins present in the feed.
Characterization of the bioburden in green tea samples marketed in Lisbon
Viegas, Susana; Twarużek, Magdalena; Kosicki, Robert; Grajewski, Jan; Santos, Patrícia; Sá, Flávio; Mateus, Margarida; Viegas, CarlaTea is one of the most consumed beverages in the world essentially because of its beneficial effects on health. There are no regulations or load limits concerning microbial contamination of teas, and for this reason, microbiological food safety hazards linked with these products have rarely been reported. The aim of this study was to assess the bioburden of loose and bags tea of green tea marketed in Lisbon, af...
Multi-mycotoxin occurrence in feed: the case of one dairy farm located in Portugal
Viegas, Susana; Twarużek, Magdalena; Kosicki, Robert; Grajewski, Jan; Viegas, CarlaMycotoxins presence can affect dairy farming with regards to feeding contamination and the risks posed not only to productivity but also due to the ability to reach the human diet through the consumption of animal by-products such as milk. A study aimed to characterize the multi-mycotoxin occurrence in the feed of one dairy farm located in Portugal.