Risk assessment of Escherichia coli in bioaerosols generated following land application of farmyard slurry.

The Science of the Total Environment
Rajat NagEnda Cummins

Abstract

Transfer of Escherichia coli in bioaerosols to humans during and shortly after the land application of farmyard slurry may pose human health hazards, but it has not been extensively explored to date. The present study developed a quantitative risk assessment model for E. coli through the air exposure route. The probabilistic model assessed the predicted number of microorganisms in the air (PNair) to which humans may be exposed. A Gaussian air dispersion model was used to calculate the concentration of E. coli transmitted through aerosols. Human exposure (HE) to E. coli was estimated using a Monte Carlo simulation approach. This research predicted the mean HE as 26 CFU day-1 (95th percentile 263 CFU day-1) and suggests the importance of keeping a distance of at least 100 m for the residential population from land spreading activities. However, the simulated mean daily or annual (once a year application) risk of 2.65 × 10-7 person-1 year-1 due to land application of slurry indicates very low occupational risk for farmworkers not equipped with the personal protective equipment (PPE), who are potentially exposed to E. coli indirectly. The model found that the decay constant of E. coli in air, duration of decay, and bio-aerosolisati...Continue Reading

References

Sep 1, 1988·Regulatory Toxicology and Pharmacology : RTP·J A Cotruvo
Jul 1, 1971·The New England Journal of Medicine·H L DuPontJ P Kalas
Nov 1, 1966·Journal of General Microbiology·J D Anderson
Apr 14, 2004·Risk Analysis : an Official Publication of the Society for Risk Analysis·Peter TeunisKunihiro Shinagawa
Jul 10, 2004·Letters in Applied Microbiology·M L HutchisonA Moore
Sep 24, 2004·Bioresource Technology·Fiona A NicholsonBrian J Chambers
Apr 12, 2005·Environmental Science & Technology·Benjamin D TannerIan L Pepper
Sep 15, 2015·Nature Genetics·Matthew R RobinsonPeter M Visscher
May 24, 2016·The Science of the Total Environment·Rachel ClarkeEnda Cummins
Dec 20, 2016·Foodborne Pathogens and Disease·Cheyenne C ConradTim McAllister
Apr 4, 2016·One Health·J P G Van LeukenW Van der Hoek
Jul 13, 2019·The Science of the Total Environment·Rajat NagEnda Cummins
Dec 19, 2020·Comprehensive Reviews in Food Science and Food Safety·Bernardino Machado-MoreiraCatherine M Burgess

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.