Dental care professionals are exposed to aerosols from the oral cavity of patients containing several pathogenic microorganisms. Bioaerosols generated during dental treatment a potential hazard staff, and there have been growing concerns about their role in transmission various airborne infections reducing risk contamination.To investigate qualitatively quantitatively bacterial fungal before clinical sessions two offices compared with controls.An extra-oral evacuator system was used measure...

Bioaerosols play a significant role in indoor air quality (IAQ) as they can be the cause of several health problems, including acute allergies and infectious diseases. This study aimed to characterize compare microbial air-conditioned (AC) naturally ventilated (NV) office rooms Upper Silesia region Poland. The bacterial samples were collected during late spring season. Culturable bacteria deposited on nutrient media Petri dishes investigate viable-culturable count (VCC) community structure...

The aims of this article are to characterize: the quantity culturable bacterial aerosol (QCBA) and quality (QlCBA) in an office building Southern Poland during spring. average concentration (CCBA) ranged from 424 CFU m-3 821 m-3, below Polish proposals for threshold limit values. Size distributions were unimodal, with a peak particle aerodynamic diameters less than 3.3 μm, increasing potentially adverse health effects due their inhalation. spring exposure dose (SPED) was estimated. highest...

Numerous studies have focused on occupational and indoor environments because people spend more than 90% of their time in them. Nevertheless, air is the main source bacteria indoors, outdoor exposure also crucial. Worldwide indicated that bacterial concentrations vary among different types environments, with considerable seasonal variations as well. Conducting comprehensive monitoring atmospheric aerosol very important not only for environmental management but assessment health impacts...

The concentrations and size distributions of culturable bacterial aerosols were measured during spring winter in outdoor air Gliwice, Upper Silesia, Poland. This research on bacteria was carried over a period two years. samples collected using six-stage Andersen cascade impactor (with aerodynamic cut-off diameters 7.0, 4.7, 3.3, 2.1, 1.1, 0.65 μm). results showed that the average concentration aerosol 355 CFU m−3 spring, which four times higher than (65 m−3). Bacterial unimodal distribution...

The issue of healthy educational buildings is a global concern because children are particularly at risk lung damage and infection caused by poor indoor air quality (IAQ). This article presents the results preliminary study concentration size distribution bacterial aerosol in three buildings: preschool, primary school, high school. Sampling was undertaken classrooms with an Andersen six-stage impactor (with aerodynamic cut-off diameters 7.0, 4.7, 3.3, 2.1, 1.1 0.65 μm) during spring 2016...

Due to prolonged human occupancy within indoor environments, the quality of air holds significant importance. This study evaluates impact retrofitting a ventilation system from natural mechanical on (IAQ) in bedroom during heating seasons 2017/18 and 2020/21. Measurements were conducted before after modernization assess CO2 concentrations, temperature, humidity, particulate matter (PM) bacterial fungal aerosols levels indoors outdoors. Results show decrease concentration (from 1000 ± 240 ppm...

This study aimed to characterize airborne bacteria and fungi populations present in rural nursery schools the Upper Silesia region of Poland during winter spring seasons through quantification identification procedures. Bacterial fungal concentration levels size distributions were obtained by use a six-stage Andersen cascade impactor. Results showed wide range indoor bioaerosols levels. The maximum level viable bacterial aerosols indoors was about 2600 CFU·m−3, two three times higher than...

An increased understanding of airborne microorganism populations should enable a better interpretation bioaerosol exposure found in working environment. assessment the contamination levels mesophilic bacterial aerosol (MBA) and fungal (FA) was carried out using two evaluation indices for microbiological pollution—the total index per cubic meter (TIMC/m3) indoor–outdoor (IOI). advantage selected is inclusion several co-existing factors that have an impact on formation bioaerosol. When...

Bioaerosol monitoring is a rapidly emerging area in the context of work environments because microbial pollution key element indoor air and plays an important role certain infectious diseases allergies. However, as yet, relatively little known about inhaled doses microorganisms workplaces. Today, issue social concern due to waste management, transport, sorting, processing wastes their environmental impact effects on public health. In fact, management activities can have numerous adverse...

International interests in biological air pollutants have increased rapidly to broaden the pool of knowledge on their identification and health impacts (e.g., infectious, respiratory diseases allergies). Antibiotic resistance its wider implications present us with a growing healthcare crisis, an understanding antibiotic-resistant bacteria populations should enable better interpretation bioaerosol exposure found air. Waste sorting plant (WSP) activities are source occupational bacterial...

Infectious diseases caused by airborne bacteria and viruses are a major problem for both social economic reasons. The significance of this phenomenon is particularly noticeable during the time coronavirus pandemic. One consequences increased interest in air purifier (AP) market, which resulted significant increase sales these devices. In study, we tested efficiency APs removing bacterial contamination educational context Upper Silesia region Poland “cold season” 2018/2019. During 6 months...

Air pollution, a by-product of economic growth, generates an enormous environmental cost in Poland. The issue healthy living spaces and indoor air quality (IAQ) is global concern because people spend approximately 90% their time indoors. An increasingly popular method to improve IAQ use purifiers (APs). Indoor often polluted by bioaerosols (e.g., viruses, bacteria, fungi), which are major for public health. This work presents research on culturable bacterial aerosol (CBA) samples collected...

Children’s exposure to air pollutants is an important public health challenge. Indoor quality (IAQ) in nursery school believed be different from elementary school. Moreover, younger children are more vulnerable pollution than higher grade because they spend time indoors, and their immune systems bodies less mature. The purpose of this study was evaluate the indoor at naturally ventilated rural schools located Upper Silesia, Poland. We investigated concentrations volatile organic compounds...

The benefits of regular exercise include improved physical and mental health. school gym is a particular micro-environment where students perform intensive training. question if there an increased risk microbiological contamination. This preliminary work studied the exposure to bacterial aerosol (BA) in highschool located urban area Southern Poland. A sampling BA was undertaken with Andersen six-stage impactor (ANDI). identified using API (analytical profile index) tests. concentrations were...

Many studies have shown an association between working in waste sorting plants (SP) and occupational health problems, such as skin irritation or pulmonary diseases. These symptoms been related to biological aerosol exposure. The main goal of this work was assess the levels concentration characteristics bacterial aerosols plants, based on measurements taken a plant located mountain region Southern Poland, around which there are numerous rural areas. average concentrations culturable (CCBA)...

Many studies have shown that air pollution may be closely associated with increased morbidity and mortality due to COVID-19. It has been observed exposure leads reduced immune response, thereby facilitating viral penetration replication. In our study, we combined information on confirmed COVID-19 daily new cases (DNCs) in one of the most polluted regions European Union (EU) air-quality monitoring data, including meteorological parameters (temperature, relative humidity, atmospheric pressure,...

The main goal of this study was to assess the levels concentration biological air pollutants in biomass processing power plants, based on measurements taken a plant located Southern Poland. This work shows problems related co-combustion and indicates health risks which employees positions closely combustion are exposed. Bacterial fungal aerosol samples were collected using six-stage Andersen cascade impactor with aerodynamic cut-off diameters 7.0, 4.7, 3.3, 2.1, 1.1 0.65 µm (Tisch...

(1) Background: On the Internet, we can find guidelines for homemade air purifiers. One of solutions includes use a low-cost ozone generator to decrease level odors and biological contaminants. However, authors do not notify about hazardous effects generation on human health; (2) Methods: We elaborated our test results bacterial fungal aerosol reduction by two technical First, including mesh filter generator, second an filter, carbon filter. (3) Conclusions: After 20 min generation,...