Advertisement

Topics

Characteristics of airborne opportunistic pathogenic bacteria during autumn and winter in Xi'an, China.

08:00 EDT 27th March 2019 | BioPortfolio

Summary of "Characteristics of airborne opportunistic pathogenic bacteria during autumn and winter in Xi'an, China."

Bacteria are ubiquitous throughout the earth's lower atmosphere. Bacteria, especially pathogenic bacteria, play an important role in human health. The diversity, composition, and dynamics of airborne bacteria has been widely studied; however, the characteristics of pathogenic bacteria remain poorly understood. In this study, a high throughput sequencing method was used to explore the airborne opportunistic pathogenic bacteria during autumn and winter in Xi'an, China. An aggregated boosted tree (ABT) was developed to determine the relative influence of environmental factors on the proportions of opportunistic pathogenic bacteria. Results showed that significantly more opportunistic pathogenic bacteria were found in winter than in autumn, and more opportunistic pathogenic bacteria were found in fine particulate matters (<2.5 μm) than in PM (<10 μm). However, the composition of opportunistic pathogenic bacteria varied in autumn and winter. PM was the main factor affecting the proportions of opportunistic pathogenic bacteria, and air contaminants (PM, sulfur dioxide, nitrogen oxide, carbon monoxide, and ozone) influenced the proportion of opportunistic pathogenic bacteria more than meteorological factors (relative humidity, temperature, and wind speed). Different factors may be responsible for the variances in opportunistic pathogenic bacterial communities in different seasons. This study may provide a reference to support the control of pathogenic bacteria in urban environments during haze events.

Affiliation

Journal Details

This article was published in the following journal.

Name: The Science of the total environment
ISSN: 1879-1026
Pages: 834-845

Links

DeepDyve research library

PubMed Articles [10771 Associated PubMed Articles listed on BioPortfolio]

Airborne bacteria in a wastewater treatment plant: Emission characterization, source analysis and health risk assessment.

Wastewater treatment plants (WWTPs) are major sources of airborne bacteria, which could pose health risks to WWTP workers and surrounding residents. In this study, air samples were collected from vari...

Effect of season on sexual behavior, testicular measurements and seminal characteristics in "Beni arouss" North Moroccan bucks.

Changes in anatomical, behavioural and seminal characteristics were measured throughout the year in seven Beni Arouss bucks maintained at a latitude of 35 °N. Testicular size varied significantly. ...

Are ball pits located in physical therapy clinical settings a source of pathogenic microorganisms?

Clinical, therapeutic ball pits commonly used by physical therapists to provide sensory stimulation to children were investigated for microbial colonization. Due to the permissive and hospitable envir...

Characteristics and source apportionment of PM in Jiaxing, China.

Herein we investigated the morphology, chemical characteristics, and source apportionment of fine particulate matter (PM) samples collected from five sites in Jiaxing. Scanning electron microscopy (SE...

Ongoing seasonally uneven climate warming leads to earlier autumn growth cessation in deciduous trees.

Ongoing global warming is causing phenological shifts that affect photosynthesis and growth rates in temperate woody species. However, the effects of seasonally uneven climate warming-as is occurring ...

Clinical Trials [3141 Associated Clinical Trials listed on BioPortfolio]

Probiotics Against Pathogenic Bacteria in Advanced ENT-Surgery

Surgery in the mouth and oropharynx is performed in an area colonised by bacteria non-pathogenic and pathogenic. Antibiotics are used regularly resulting in disturbances in the intestinal...

Vitamin D Status Among Competitive Female Gymnast and Swimmers After Winter Time

As indoor athletes, competitive gymnasts and swimmers can face the problem of a potential vitamin D deficiency. In the last decades, indoor sports participants have been faced with the pro...

Air Barrier System for the Reduction of Airborne Colony-forming Units During Total Shoulder Arthroplasty

The objective of this study is to determine whether the Air Barrier System device reduces airborne colony-forming units (e.g., bacteria) present at a surgery site during total shoulder art...

Air Barrier System for the Reduction of Airborne Colony Forming Units During Total Knee Arthroplasty

This objective of this study is to determine whether the Air Barrier System device reduces airborne colony-forming units (e.g., bacteria) present at a surgery site during total knee arthro...

Prospective, Randomized, Double Blind Comparative Study on the Use of Two Creams in Xerosis Atopic Probands

Atopic dermatitis (AD), a chronic and relapsing inflammatory skin disease, is associated with elevated IgE levels and Th2 responses. It is currently believed that non-pathogenic bacteria m...

Medical and Biotech [MESH] Definitions

An infection caused by an organism which becomes pathogenic under certain conditions, e.g., during immunosuppression.

The presence of bacteria, viruses, and fungi in food and food products. This term is not restricted to pathogenic organisms: the presence of various non-pathogenic bacteria and fungi in cheeses and wines, for example, is included in this concept.

A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that utilizes citrate as a sole carbon source. It is pathogenic for humans, causing enteric fevers, gastroenteritis, and bacteremia. Food poisoning is the most common clinical manifestation. Organisms within this genus are separated on the basis of antigenic characteristics, sugar fermentation patterns, and bacteriophage susceptibility.

A genus of gram-negative, aerobic, motile bacteria that occur in water and soil. Some are common inhabitants of the intestinal tract of vertebrates. These bacteria occasionally cause opportunistic infections in humans.

Those characteristics that distinguish one SEX from the other. The primary sex characteristics are the OVARIES and TESTES and their related hormones. Secondary sex characteristics are those which are masculine or feminine but not directly related to reproduction.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Relevant Topic

DNA sequencing
DNA sequencing is the process of determining the precise order of nucleotides within a DNA molecule. During DNA sequencing, the bases of a small fragment of DNA are sequentially identified from signals emitted as each fragment is re-synthesized from a ...


Searches Linking to this Article