ArticleJournal of occupational and environmental hygiene2018
Microbial hazards during harvesting and processing at an outdoor United States cannabis farm.
Article in Journal of occupational and environmental hygiene, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.
- Allergic Anaphylactic Risk in Farming Activities: A Systematic Review.International journal of environmental research and public health · 2020Pooled it
- Work-Related Asthma in the Cannabis Industry: Findings From California, Massachusetts, Michigan, and Washington.Journal of occupational and environmental medicine · 2025Article
- Bioaerosol Exposures and Respiratory Diseases in Cannabis Workers.Current allergy and asthma reports · 2024Review
- Using Detached Industrial Hemp Leaf Inoculation Assays to Screen for Varietal Susceptibility and Product Efficacy onPlants (Basel, Switzerland) · 2023Article
- Ultraviolet radiation exposure in cannabis-growing facilities.Journal of occupational and environmental hygiene · 2023Article
- Exposure Levels of Airborne Fungi, Bacteria, and Antibiotic Resistance Genes in Cotton Farms during Cotton Harvesting and Evaluations of N95 Respirators against These Bioaerosols.Microorganisms · 2023Article
- The Emerging Spectrum of Respiratory Diseases in the U.S. Cannabis Industry.Seminars in respiratory and critical care medicine · 2023Article
- Cannabis: An Emerging Occupational Allergen?Annals of work exposures and health · 2020Article
- Sociopolitical Externalities Impacting Worker Health in Washington State's Cannabis Industry.Annals of work exposures and health · 2020Article
- Review of NIOSH Cannabis-Related Health Hazard Evaluations and Research.Annals of work exposures and health · 2020Article
- Fungal Pathogens Affecting the Production and Quality of Medical Cannabis in Israel.Plants (Basel, Switzerland) · 2020Article
- Cannabis, One Health, and Veterinary Medicine: Cannabinoids' Role in Public Health, Food Safety, and Translational Medicine.Rambam Maimonides medical journal · 2020Review
- Expression of Putative Defense Responses in Cannabis Primed byFrontiers in plant science · 2020Article
- Interpol review of controlled substances 2016-2019.Forensic science international. Synergy · 2020Review
- Potential occupational and respiratory hazards in a Minnesota cannabis cultivation and processing facility.American journal of industrial medicine · 2019Article
- Emerging Insights into the Occupational Mycobiome.Current allergy and asthma reports · 2018Review
- Occupational Allergies to Cannabis.The journal of allergy and clinical immunology. In practiceReview
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
Cannabis cultivation is an emerging industry within the United States. Organic dust derived in part from naturally occurring microorganisms is known to cause byssinosis in the hemp industry. In this pilot study, bacteria and fungi encountered by workers at an outdoor cannabis farm that utilized organic practices were elucidated by 16 S ribosomal RNA (rRNA) and Internal Transcribed Spacer (ITS) region sequencing, respectively. Area (n = 14) and personal air samples (n = 12) were collected during harvesting and processing activities. 16 S rRNA and ITS regions of extracted bacterial and fungal genomic DNA were amplified and sequenced using Sanger sequencing. Bacterial sequencing resolved 1,077 sequences that were clustered into 639 operational taxonomic units (OTUs) and predominantly placed in the phylum, Actinobacteria (46%). Personal air samples revealed higher bacterial and Actinobacteria diversity compared to outdoor area samples collected within the facility (p < 0.05). A high degree of dissimilarity between bacteria was identified within and between samples. Fungal sequences (n = 985) were identified and predominantly clustered in the phylum Ascomycota (53%). Of the 216 fungal OTUs elucidated, the cannabis plant pathogenic species, Botrytis cinerea, was the most prevalent and accounted for 34% of all fungal sequences. The relative abundance of B. cinerea was highest in personal air samples (59%) compared to area samples collected in the drying room (19%), greenhouse (18%), and outdoor environment (6%). There was 49% sample similarity between fungi identified within personal air samples, but higher dissimilarity coefficients were observed within and between greenhouse, drying room, and outdoor area air samples. The results of this pilot study suggest that the cannabis farm workers are potentially exposed to Actinobacteria as well as the cannabis plant pathogen, B. cinerea during harvesting, bud-stripping, and hand-trimming processes.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.