Air pollution effects on Datura innoxia mill. pollen structure, protein and germination
In this study, we examinedDatura pollen deposition on the stigma for germination and also assessed the viability of the pollen along with its element and protein content. According to the hypothesis that pollen physiology is negatively impacted by air pollutants, we expected a highly polluted area to have a high degree of pollen abortion with low amount of total protein content with accumulation of different elements because the high amount of particulate pollutants deposited on pollen should alter its physiology. We found that pollen viability at all three different locations is significantly similar, while pollen germina...
Source: Aerobiologia - August 1, 2022 Category: Environmental Health Source Type: research
Automatic detection of airborne pollen: an overview
AbstractPollen monitoring has traditionally been carried out using manual methods first developed in the early 1950s. Although this technique has been recently standardised, it suffers from several drawbacks, notably data usually only being available with a delay of 3 –9 days and usually delivered at a daily resolution. Several automatic instruments have come on to the market over the past few years, with more new devices also under development. This paper provides a comprehensive overview of all available and developing automatic instruments, how they measure , how they identify airborne pollen, what impacts measuremen...
Source: Aerobiologia - July 30, 2022 Category: Environmental Health Source Type: research
A comprehensive aerobiological study of the airborne pollen in the Irish environment
AbstractRespiratory allergies triggered by pollen allergens represent a significant health concern to the Irish public. Up to now, Ireland has largely refrained from participating in long-term aerobiological studies. Recently, pollen monitoring has commenced in several sampling locations around Ireland. The first results of the pollen monitoring campaigns for Dublin (urban) and Carlow (rural) concerning the period 2017 –2019 and 2018–2019, respectively, are presented herein. Additional unpublished pollen data from 1978–1980 and, 2010–2011 were also incorporated in creating the first pollen calendar for Dublin. Duri...
Source: Aerobiologia - July 28, 2022 Category: Environmental Health Source Type: research
Fungal diversity in Sahara dust: Aspergillus sydowii and other opportunistic pathogens
In this study, we estimated the fungal diversity of the Saharan dust trapped on air filters during five days of a ship ’s trajectory in the eastern Atlantic during a dust event. Also, we investigated whether SDS is a potential source of opportunistic fungal pathogens. We isolated 30 morphospecies including the ascomycetesAspergillus (33% of identified isolates),Thielavia (18%),Penicillium (12%),Chaetomium strumarium (3%),Periconia (2%), andCladosporium sphaerospermum (1%). Many of these groups include opportunistic pathogens. Species diversity was similar across days but with significant differences between Days 3 vs 5 ...
Source: Aerobiologia - July 25, 2022 Category: Environmental Health Source Type: research
Chemical and biological components of atmospheric particulate matter and their impacts on human health and crops: a review
This article provides a brief review of morphological features (MFs), chemical and biological aspects of particulate matters (PMs) and their effects on humans and crops. Based on previous studies, it has been found that particles such as carbonaceous, metal-rich, crust-element, fly-ash and biological particles usually exhibit multifarious morphology, due to diverse sources. Thirty-seven elements have been identified; some of them, viz. arsenic, chromium, cadmium, lead, nickel, vanadium and titanium, are extremely hazardous for humans and plants compared to other elements. These toxic elements (TEs)/toxic metals (TMs) can p...
Source: Aerobiologia - June 24, 2022 Category: Environmental Health Source Type: research
A review of the impact of environmental factors and pollutants on covid-19 transmission
This study synthesized and reviewed the findings of 110 previously published articles on meteorological factors and COVID-19 transmission. This study aimed to identify the diversified impacts of meteorological factors on the spread of infection and suggests future research. Temperature, rainfall, air qu ality, sunshine, wind speed, air pollution, and humidity were found as investigated frequently. Correlation and regression analysis have been widely used in previous studies. Most of the literature showed that temperature and humidity have a favorable relationship with the spread of COVID-19. On the other hand, 20 articles ...
Source: Aerobiologia - June 23, 2022 Category: Environmental Health Source Type: research
First volumetric records of airborne Cladosporium and Alternaria spores in the atmosphere of Al Khor (northern Qatar): a preliminary survey
AbstractDaily monitoring of airborne fungal spores was carried out for the first time in Al Khor city, Qatar, using a Hirst type 7-day recording volumetric spore trap, from May 2017 to May 2019. During the sampling period, the annual and monthly fluctuations, as well as intradiurnal variations of airborne fungal spore concentrations, were evaluated.Cladosporium, followed byAlternaria, were the spore types most abundant in the atmosphere of the city, with a strong interannual variability in the atmospheric concentrations being observed. The Annual Spore Integrals (ASIns) were 3334 and 1172 spore * day/m3 (2017 –2018), and...
Source: Aerobiologia - June 17, 2022 Category: Environmental Health Source Type: research
The relationships between health risk and special weather conditions according to fungal community characteristics
This study analyzed fungal community structures, diversity and nutrition acquisition patterns under different weather conditions (sun, haze and dust). The results showed that the characteristics of the fungal community changed significantly when special weather occurred. Diversity and uniformity increased significantly, and the increase on haze days was greater than that on dust days. The dominant genera of fungi on sunny days werePericonia (26.76%) andAlternaria (27.56%), and the dominant genus of fungi on haze and dust days wasAspergillus (70.34 and 86.82%, respectively). According to the calculation of the concentration...
Source: Aerobiologia - May 28, 2022 Category: Environmental Health Source Type: research
