ArticleInternational journal of environmental research and public health2019
Temporal and Spatial Variability of Volatile Organic Compounds in the Forest Atmosphere.
Article in International journal of environmental research and public health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 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
20 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Nature Exposure and Its Effects on Immune System Functioning: A Systematic Review.International journal of environmental research and public health · 2021Pooled it
- Spending Time in the Forest or the Field: Investigations on Stress Perception and Psychological Well-Being-A Randomized Cross-Over Trial in Highly Sensitive Persons.International journal of environmental research and public health · 2022Trial
- Comparative Study of the Restorative Effects of Forest and Urban Videos during COVID-19 Lockdown: Intrinsic and Benchmark Values.International journal of environmental research and public health · 2020Trial
- Nature-Based Environment as a Workplace of Forest Therapy Specialist in Healthcare Context: Legal Perspective.Healthcare (Basel, Switzerland) · 2026Article
- Terpene content in the air of younger and older forests in southeastern Poland: implications for forest therapy.Scientific reports · 2025Article
- A Review of Biogenic Volatile Organic Compounds from Plants: Research Progress and Future Prospects.Toxics · 2025Review
- Article
- Effects of Plant-Emitted Monoterpenes on Anxiety Symptoms: A Propensity-Matched Observational Cohort Study.International journal of environmental research and public health · 2023Observational
- Chemical Composition of Atmospheric Air in Nemoral Scots Pine Forests and Submountainous Beech Forests: The Potential Region for the Introduction of Forest Therapy.International journal of environmental research and public health · 2022Article
- Tourism as a Tool in Nature-Based Mental Health: Progress and Prospects Post-Pandemic.International journal of environmental research and public health · 2022Review
- A Modeling Approach for Quantifying Human-Beneficial Terpene Emission in the Forest: A Pilot Study Applying to a Recreational Forest in South Korea.International journal of environmental research and public health · 2022Article
- Developing Forest Therapy Programmes Based on the Health Benefits of Terpenes in Dominant Tree Species in Tara National Park (Serbia).International journal of environmental research and public health · 2022Article
- Defining a new perspective in Environmental Health: the healing environment.International journal of biometeorology · 2022Article
- The Healing Power of Clean Rivers: In Silico Evaluation of the Antipsoriatic Potential of Apiin and Hyperoside Plant Metabolites Contained in River Waters.International journal of environmental research and public health · 2022Article
- Short-Term Effects of Forest Therapy on Mood States: A Pilot Study.International journal of environmental research and public health · 2021Article
- Effects of Multi-Component Backgrounds of Volatile Plant Compounds on Moth Pheromone Perception.Insects · 2021Article
- Article
- Forest Volatile Organic Compounds and Their Effects on Human Health: A State-of-the-Art Review.International journal of environmental research and public health · 2020Review
- Human Breathable Air in a Mediterranean Forest: Characterization of Monoterpene Concentrations under the Canopy.International journal of environmental research and public health · 2020Article
- Measures to Promote Rural Healthcare Tourism with a Scientific Evidence-Based Approach.International journal of environmental research and public health · 2020Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The healing effects of the forest are increasingly being valued for their contribution to human psychological and physiological health, motivating further advances aimed at improving knowledge of relevant forest resources. Biogenic volatile organic compounds, emitted by the plants and accumulating in the forest atmosphere, are essential contributors to the healing effects of the forest, and represent the focus of this study. Using a photoionization detector, we investigated the high frequency variability, in time and space, of the concentration of total volatile organic compounds on a hilly site as well as along forest paths and long hiking trails in the Italian northern Apennines. The scale of concentration variability was found to be comparable to absolute concentration levels within time scales of less than one hour and spatial scales of several hundred meters. During daylight hours, on clear and calm days, the concentration peaked from noon to early afternoon, followed by early morning, with the lowest levels in the late afternoon. These results were related to meteorological variables including the atmospheric vertical stability profile. Moreover, preliminary evidence pointed to higher concentrations of volatile organic compounds in forests dominated by conifer trees in comparison to pure beech forests.
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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.