[No abstract available]
Background: Exposure to airborne allergens of biological origin associates with the development and exacerbation of allergic asthma and rhinitis. Assessment of allergens' exposure in healthcare facilities may contribute to monitor hygiene and survey specific allergens which may cause symptoms in sensitized subjects. Objective: To assess the concentration of indoor and airborne food allergens across different he...
Indoor air quality (IAQ) in health care facilities may influence the health and wellbeing of healthcare workers, having a significant impact on their overall quality of life. Therefore, we aimed to assess the IAQ parameters in a major clinical setting, as well as to observe occupational health symptomatology in workers at that healthcare institution.
Endotoxins are biologically active lipopolysaccharides (LPSs) produced by the most external layer of cell walls of Gram-negative bacteria and are present ubiquitously in the environment. Endotoxin levels are related to the occurrence of Gram-negative bacteria and acute health effects like dry cough and shortness of breath, decrease in lung function, fever reaction and malaise, dyspnea and headaches have been de...
Bioburden (comprising fungi and bacteria) is associated with a wide range of adverse health effects and besides patients, clinical staff is also at risk to be exposed. Most of the studies worldwide focusing on bioburden for Indoor Air Quality (IAQ) studies or for occupational exposure assessments purposes rely mostly on air sampling (active methods). In Portugal, occupational health concern has been increasing,...
Development of allergic diseases may be regulated by microbial exposure. Children spend a lot of their time in schools, under an extensive diversity of biological agents, such as bacteria and fungi. This study aimed to characterize indoor air microbiological exposure in schools as a predictor of allergic sensitization and asthma in children.
The aim of this study was to assess if IAQ in primary schools improved in 4 years as a result of adopting the SINPHONIE guideline-based recommendations.
The aim of this study was to investigate volatile organic compound (VOC) emissions from floor cleaning products (FCPs) used in primary schools and compare them with emissions from a previously recognised low-emitting product (control sample). Samples of FCPs used in 3 primary schools and a control sample were collected and subsequently examined in a test chamber. Measurements were performed at t = 0, 60, 120, 2...
The study aimed to: (i) quantify bacteria and fungi concentrations in 4 indoor environments; (ii) identify the recovered fungi; (iii) assess the impact of outdoor bacteria and fungi indoors; and (iv) estimate bacterial and fungal inhalation dose rates in children and elderly. Air samples were collected from 20 primary schools, 68 homes, 9 child day-care centres and 22 elderly care centres, with a microbiologica...
Several studies found associations between exposure to airborne fungi and allergy, infection, or irritation. This study aimed to characterize airborne fungi populations present in public primary schools in Porto, Portugal, during winter through quantification and identification procedures. Fungal concentration levels and identification were obtained in a total of 73 classrooms. The AirIdeal portable air sampler...