4.7 Article

From air to airway: Dynamics and risk of inhalable bacteria in municipal solid waste treatment systems

Related references

Note: Only part of the references are listed.
Article Environmental Sciences

Abundance and cultivable bioaerosol transport from a municipal solid waste landfill area and its risks

Ting Zhang et al.

Summary: Municipal solid waste (MSW) landfills, as one of the major contributors to bioaerosols, have adverse effects on health. A study developed a model to understand the impact of a typical MSW landfill on ambient bioaerosol pollution and found that bioaerosols had significantly higher horizontal diffusion velocity than vertical velocity under calm winds. Monitoring revealed higher concentrations of particulate matter near the landfill, with elevated levels of microorganisms. Human health risk assessments highlight the importance of reducing outdoor activities for residents near MSW landfills.

ENVIRONMENTAL POLLUTION (2023)

Article Environmental Sciences

Non-negligible health risks caused by inhalation exposure to aldehydes and ketones during food waste treatments in megacity Shanghai

Liangmao Zhang et al.

Summary: This study assesses the chronic exposure risks of aldehydes and ketones in urban food waste treatment processes and identifies potential health hazards. Acetaldehyde is found to be the most harmful pollutant, with both carcinogenic and non-carcinogenic risks considered unacceptable. The study highlights the potential inhalation risks of aldehydes and ketones in food waste treatments.

ENVIRONMENTAL POLLUTION (2023)

Article Environmental Sciences

The exposure risks associated with pathogens and antibiotic resistance genes in bioaerosol from municipal landfill and surrounding area

Zhishu Liang et al.

Summary: This study assessed the characteristics and exposure risks of airborne microorganisms in different sectors of a typical landfill. The results showed that active areas during waste disposal processes and the surrounding areas had higher levels of pathogenic microorganisms and allergenic fungi. Additionally, the surrounding areas had higher levels of antibiotic resistance genes. These findings provide guidance for reducing and preventing respiratory allergy or infection risks in occupational environments related to waste management.

JOURNAL OF ENVIRONMENTAL SCIENCES (2023)

Review Engineering, Environmental

From properties to toxicity: Comparing microplastics to other airborne microparticles

Simon Wieland et al.

Summary: This study examines the potential toxicity of airborne microplastics and identifies possible drivers of their toxicity. By comparing the toxicology of non-plastic airborne microparticles, the researchers aim to understand the mechanisms of airborne microplastic toxicity and facilitate the assessment of risks associated with pollution.

JOURNAL OF HAZARDOUS MATERIALS (2022)

Article Engineering, Environmental

Household waste management in Singapore and Shanghai: Experiences, challenges and opportunities from the perspective of emerging megacities

Jieyu Zhou et al.

Summary: Due to rapid economic development and urbanisation, emerging megacities are facing challenges in developing sustainable waste management systems. This study assessed the waste management modes in two selected emerging megacities, Singapore and Shanghai, and found significant differences in their management strategies, environmental effects, economic costs, and social outcomes. The research results provide insights into the long-term sustainability of each mode and the feasibility of implementation in different contexts.

WASTE MANAGEMENT (2022)

Article Nutrition & Dietetics

Lactobacilli Infection Case Reports in the Last Three Years and Safety Implications

Franca Rossi et al.

Summary: Lactobacilli, commonly found in fermented foods and used as probiotics, have been reported to cause rare infections. This survey re-assessed the pathogenic potential of lactobacilli based on infection case reports from the past three years. The study found an increase in the number of reported cases, suggesting a higher pathogenicity than previously observed. Lacticaseibacillus rhamnosus and L. paracasei were the most frequently implicated strains. The study also highlighted the importance of genetic stability assessment through whole genome sequencing to ensure non-pathogenic variants are used in vulnerable individuals.

NUTRIENTS (2022)

Article Environmental Sciences

Short-term inhalation exposure evaluations of airborne antibiotic resistance genes in environments

Zhenchao Zhou et al.

Summary: Antibiotic resistance poses a significant threat to human health, especially in airborne environments. Research has shown that high-risk areas such as swine farms and hospitals have significantly higher levels of antibiotic resistance genes compared to suburbs and urban areas.

JOURNAL OF ENVIRONMENTAL SCIENCES (2022)

Article Environmental Sciences

The effects of air pollutants exposure on the transmission and severity of invasive infection caused by an opportunistic pathogen Streptococcus pyogenes

Yong Zhi et al.

Summary: The current process of urbanization leads to an increase in air pollutants which alter the host's immune system and antimicrobial resistance, resulting in a higher risk of invasive pathogen infections.

ENVIRONMENTAL POLLUTION (2022)

Article Engineering, Environmental

Global Meta-analysis of Airborne Bacterial Communities and Associations with Anthropogenic Activities

Xiaoqing Jiang et al.

Summary: Airborne microbiome alterations, linked to anthropogenic activities, have become a global health concern. A meta-analysis of 3226 air samples revealed that anthropogenic activity-related samples showed increased microbial diversity, abundance of pathogens, co-occurrence network complexity, and decreased positive edge proportions. Additionally, human production process factors were found to be quantitatively associated with microbial richness. Airborne pathogens were more likely to originate from the human body surface. These findings advance our understanding of the relationship between anthropogenic activities and airborne bacteria, emphasizing the role of airborne pathogens in public health.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2022)

Article Environmental Sciences

Enhancing nitrogen removal in mature landfill leachate by mixed microalgae through elimination of inhibiting factors

Zhangbao Wang et al.

Summary: This study demonstrates that the combination of ozonation and microalgae is an effective method for nitrogen removal from landfill leachate. The synergistic effect of ozonation and microalgae achieved a 99.7% ammonia removal rate, with a biomass of 0.77 g/L (dry weight) and a maximum growth rate of 160 mg/L/d. Ozone pretreatment significantly reduced the chromaticity and macromolecular organic matter of the leachate.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

Review Environmental Sciences

Recent Insights into Particulate Matter (PM2.5)-Mediated Toxicity in Humans: An Overview

Prakash Thangavel et al.

Summary: PM2.5, a type of ambient fine particulate matter, is considered a significant potential danger to human health, with causal associations to cardiopulmonary illnesses and cancers. The toxic effects and potential mechanisms of PM2.5 have been described in various studies.

INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH (2022)

Article Multidisciplinary Sciences

Global airborne bacterial community-interactions with Earth's microbiomes and anthropogenic activities

Jue Zhao et al.

Summary: This study analyzed the bacterial communities in airborne particulate samples from around the world and found that they have a biogeographic pattern and interact with surface environments. While the total abundance of airborne bacteria is lower than other habitats, the number of bacterial taxa is comparable to the hydrosphere and is highest in midlatitude regions. The structure of the airborne bacterial community is easily perturbed and influenced by surface microbiomes and atmospheric conditions, particularly in urban areas. These findings provide valuable insights for predicting microbial responses and health impacts in different environments.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2022)

Review Chemistry, Analytical

Critical review of antibiotic resistance genes in the atmosphere

David Kormos et al.

Summary: The article provides a critical review of sources, characteristics, and dissemination of ARGs in the atmosphere. It identifies 52 papers reporting direct measurements of bacterial ARGs in air samples. The study finds that the abundance of total ARGs in air varies by season and setting, with higher levels in urban areas during summer and rural areas during winter. Human activities in indoor environments contribute to increased ARG content in the air. The detection of ARGs in the air is still a developing field and standardization of methodologies is needed to better understand the dominant ARGs and their sources, as well as the role of atmospheric transport in dissemination.

ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS (2022)

Article Ecology

Air pollution could drive global dissemination of antibiotic resistance genes

Guibing Zhu et al.

Summary: The study found widespread presence of antibiotic resistance genes (ARGs) in fresh snow, and their dissemination may be exacerbated by air pollution. Snowfall effectively spreads ARGs from point sources to the Earth's surface, highlighting the need for better pollution control measures to reduce the global dissemination risk of antibiotic resistance genes.

ISME JOURNAL (2021)

Article Engineering, Environmental

Identifying Dermal Uptake as a Significant Pathway for Human Exposure to Typical Semivolatile Organic Compounds in an E-Waste Dismantling Site: The Relationship of Contaminant Levels in Handwipes and Urine Metabolites

Jian Tang et al.

Summary: Exposure to semivolatile organic compounds via dermal contact is a significant concern, particularly for workers in the electronic waste dismantling industry, with triphenyl phosphate identified as the main contributor to exposure risk.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2021)

Review Biology

Bioaerosols in the landfill environment: an overview of microbial diversity and potential health hazards

Abhilash T. Nair

Summary: Landfilling is an essential part of solid waste management globally, but it can lead to the release of bioaerosols into the atmosphere, posing health risks to employees and surrounding communities. Studies have shown that landfill air is dominated by microbial dust and pathogenic microbes, with higher bioaerosol concentrations reported in spring and summer due to favorable meteorological conditions. It is recommended that workers in landfill sites use personal protective equipment and practice hygiene to reduce occupational exposure to bioaerosols.

AEROBIOLOGIA (2021)

Article Engineering, Environmental

Characteristics and health effects of potentially pathogenic bacterial aerosols from a municipal solid waste landfill site in Hamadan, Iran

Mohammad Taghi Samadi et al.

Summary: This study evaluated the potential pathogenic bacterial aerosols produced from a municipal solid waste landfill site in Hamadan city, Iran, and assessed the health risks associated with it. The concentration of potential pathogenic bacterial aerosols showed spatial and seasonal variations, with higher concentrations detected in the active zone during spring and summer. Identified bacteria included Proteus mirabilis, Streptococcus sp., Pseudomonas sp., Staphylococcus aureus, and Escherichia coli. The study highlights the importance of controlling exposure to these bacterial aerosols in order to reduce health hazards.

JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING (2021)

Article Biotechnology & Applied Microbiology

Experimental parameters defining ultra-low biomass bioaerosol analysis

Irvan Luhung et al.

Summary: The study focuses on the microbial ecology of terrestrial, aquatic, and atmospheric ecosystems, with a particular emphasis on analyzing ultra-low biomass air samples. By developing an ultra-low biomass pipeline, researchers are able to significantly reduce sampling times while still maintaining species-level identification through metagenomic sequencing. The pipeline is robust across various climatic settings and can be adapted to analyze ultra-low biomass samples from environments like dust and surfaces.

NPJ BIOFILMS AND MICROBIOMES (2021)

Article Environmental Sciences

Spread of antibiotic resistance genes and microbiota in airborne particulate matter, dust, and human airways in the urban hospital

Zhen-Chao Zhou et al.

Summary: This study revealed the presence of diverse antibiotic resistance genes (ARGs) and microbes in indoor dust, PM10, and PM2.5 particulate matter in a hospital environment. Macrolides and aminoglycoside resistance genes were found to be abundant in the human airways and environmental samples, respectively. Network analysis showed co-occurrences of priority pathogens, ARGs, and mobile genetic elements, highlighting the potential link between environments and humans.

ENVIRONMENT INTERNATIONAL (2021)

Article Environmental Sciences

Contributions of meat waste decomposition to the abundance and diversity of pathogens and antibiotic-resistance genes in the atmosphere

Yun Yu et al.

Summary: The decomposition of chicken and pork in household waste landfilling can lead to high abundance emission of bioaerosols and pathogens, while fish fermentation results in increased airborne microbial activity. Pathogenic bacteria Bacilli, Burkholderia-Paraburkholderia, and Mycobacterium were the main species found in bioaerosols, indicating independent aerosolization ability in leachate. Leachate had significantly higher diversity and relative abundance of antibiotic-resistance genes (ARGs) compared to bioaerosols, with changes in the pathogenic community contributing to the prevalence of ARGs in both bioaerosols and leachate.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Review Microbiology

Responses to Ecopollutants and Pathogenization Risks of Saprotrophic Rhodococcus Species

Irina B. Ivshina et al.

Summary: In the face of increasing environmental pollution, saprophytic Rhodococcus species have the ability to adapt and demonstrate pathogenicity factors. With their high ecological plasticity and wide range of organic substrate utilization, these bacteria may pose risks of pathogenization under certain conditions. Their unique cell adaptations could potentially lead to the pathogenicity of Rhodococcus species, especially in response to anthropogenic pressures.

PATHOGENS (2021)

Proceedings Paper Meteorology & Atmospheric Sciences

Correlation between the mass concentrations of suspended particles PM10 and PM2.5 and aerosol optical depth in the coastal zone of Lake Baikal

A. L. Dementeva et al.

Summary: The study aimed to investigate the variations of aerosol optical depth, PM2.5, and PM10 mass concentration in the coastal zone of Lake Baikal during summer of 2020. Results showed a positive correlation between the spectral characteristics of aerosol optical depth and the mass concentration.

27TH INTERNATIONAL SYMPOSIUM ON ATMOSPHERIC AND OCEAN OPTICS, ATMOSPHERIC PHYSICS (2021)

Article Environmental Sciences

Chemical composition of waste burning organic aerosols at landfill and urban sites in Delhi

Rishu Agarwal et al.

ATMOSPHERIC POLLUTION RESEARCH (2020)

Article Engineering, Environmental

Municipal Solid Waste Treatment System Increases Ambient Airborne Bacteria and Antibiotic Resistance Genes

Linyun Li et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2020)

Article Optics

Seasonal and Daily Variability of Aerosol Particle Concentrations near St. Petersburg

K. A. Volkova et al.

ATMOSPHERIC AND OCEANIC OPTICS (2020)

Article Environmental Sciences

Bacterial aerosols in a municipal landfill environment

Marcin Cyprowski et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2019)

Article Engineering, Environmental

Bacteria and Antibiotic Resistance Genes (ARGs) in PM2.5 from China: Implications for Human Exposure

Jiawen Xie et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2019)

Article Engineering, Environmental

Airborne microbial communities in the atmospheric environment of urban hospitals in China

Xin-Lei Gao et al.

JOURNAL OF HAZARDOUS MATERIALS (2018)

Article Multidisciplinary Sciences

BBMerge - Accurate paired shotgun read merging via overlap

Brian Bushnell et al.

PLOS ONE (2017)

Article Biochemical Research Methods

DADA2: High-resolution sample inference from Illumina amplicon data

Benjamin J. Callahan et al.

NATURE METHODS (2016)

Article Multidisciplinary Sciences

SeqKit: A Cross-Platform and Ultrafast Toolkit for FASTA/Q File Manipulation

Wei Shen et al.

PLOS ONE (2016)

Article Multidisciplinary Sciences

Protocol Improvements for Low Concentration DNA-Based Bioaerosol Sampling and Analysis

Irvan Luhung et al.

PLOS ONE (2015)

Article Biochemical Research Methods

Bayesian community-wide culture-independent microbial source tracking

Dan Knights et al.

NATURE METHODS (2011)

Article Microbiology

Methanolinea tarda gen. nov., sp nov., a methane-producing archaeon isolated from a methanogenic digester sludge

Hiroyuki Imachi et al.

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY (2008)

Article Biochemistry & Molecular Biology

SILVA:: a comprehensive online resource for quality checked and aligned ribosomal RNA sequence data compatible with ARB

Elmar Pruesse et al.

NUCLEIC ACIDS RESEARCH (2007)