ArticleEnvironmental pollution (Barking, Essex : 1987)2014
Diurnal and seasonal trends in the apparent density of ambient fine and coarse particles in Los Angeles.
Article in Environmental pollution (Barking, Essex : 1987), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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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.
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Who cites it
9 citing papers in PubMed.
- Field Evaluation of Community Condensation Particle Counters, Optical Particle Counters, and a Low-Cost Particle Sensor.Aerosol science and technology : the journal of the American Association for Aerosol Research · 2026Article
- Seasonal Characterization of Primary and Secondary Sources of Fine PM-Bound Water-Soluble Organic Carbon in Central Los Angeles.Atmospheric environment (Oxford, England : 1994) · 2025Article
- Design, optimization, and evaluation of a wet electrostatic precipitator (ESP) for aerosol collection.Atmospheric environment (Oxford, England : 1994) · 2023Article
- Fine particulate matter (PMThe Science of the total environment · 2023Article
- Monitoring, Mapping, and Modeling Spatial-Temporal Patterns of PMInternational journal of environmental research and public health · 2020Article
- Calibration of low-cost particulate matter sensors: Model development for a multi-city epidemiological study.Environment international · 2020Article
- Circadian toxicity of environmental pollution. Inhalation of polluted air to give a precedent.Current opinion in physiology · 2018Article
- Fine and ultrafine particle doses in the respiratory tract from digital printing operations.Environmental science and pollution research international · 2017Article
- Fine and ultrafine particulate organic carbon in the Los Angeles basin: Trends in sources and composition.The Science of the total environment · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
Diurnal and seasonal variations in the apparent density of ambient fine and coarse particulate matter (PM2.5 and CPM [PM2.5-10], respectively) were investigated in a location near downtown Los Angeles. The apparent densities, determined by particle mass-to-volume ratios, showed strong diurnal and seasonal variations, with higher values during the warm phase (June to August 2013) compared to cold phase (November 2012 to February 2013). PM2.5 apparent density showed minima during the morning and afternoon rush hours of the cold phase (1.20g cm(-3)), mainly due to the increased contribution of traffic-emitted soot particles, and highest values were found during the midday in the warm phase (2.38g cm(-3)). The lowest CPM apparent density was observed during the morning rush hours of the cold phase (1.41g cm(-3)), while highest in early afternoon during the warm phase (2.91g cm(-3)), most likely due to the increased wind-induced resuspension of road dust.
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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.