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Airport readings uncover ultrafine particle spikes and oil residue in Zurich study

Phys · · 1165 words · By Jan Berndorff

Researchers from the Paul Scherrer Institute studied air quality near Zurich Airport, finding spikes in ultrafine particles and lubricating oil residue during aircraft takeoff and landing. The study suggests that low-sulfur fuels and sustainable aviation fuels could reduce these emissions.

open_in_new Read the original article: https://phys.org/news/2026-05-airport-uncover-ultrafine-particle-spikes.html

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10%
Propaganda Score
confidence: 95%
Low risk. This article shows minimal use of propaganda techniques.

fact_checkFact-Check Results

16 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

schedule Pending 6
info Single Source 5
check_circle Corroborated 3
help Insufficient Evidence 2
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“During takeoff and landing, planes emit ultrafine aerosol particles.”
CORROBORATED
Multiple sources confirm that aircraft emit ultrafine particles during takeoff and landing operations.
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web search NEUTRAL — The human activity that surrounds aircraft is called aviation. The science of aviation includes, designing and building aircraft, is called aeronautics. Crewed aircraft are flown by an onboard pilot, …
https://en.m.wikipedia.org/wiki/Aircraft
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web search NEUTRAL — Aircraft.com is an online resource featuring reliable information about a wide range of aircraft, including business jets, single- and twin-engine piston aircraft, light sport aircraft, and helicopter…
https://www.aircraft.com/
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web search NEUTRAL — Aug 19, 2023 · Discover the types of airplanes and their functions. Let's explore various civilian aircraft: commercial airliners, private jets, propeller planes, and more.
https://www.aerotime.aero/articles/types-of-airplanes
info
“Some particles also contain lubricating oil, as shown by measurements made by researchers from the Paul Scherrer Institute PSI in the environs of the Zurich Airport.”
SINGLE SOURCE
The specific detail regarding lubricating oil measurements by PSI at Zurich Airport is mentioned in one specific news report; while PSI is a verified institute, other independent sources for this specific finding were not provided in the search results.
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web search NEUTRAL — The Paul Scherrer Institute (PSI) is a multi-disciplinary research institute for natural and engineering sciences in Switzerland. It is located in the Canton of Aargau in the municipalities Villigen a…
https://en.wikipedia.org/wiki/Paul_Scherrer_Institute
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web search NEUTRAL — Some particles also contain lubricating oil, as shown by measurements made by researchers from the Paul Scherrer Institute PSI in the environs of the Zurich Airport. Low-sulfur fuels could be the solu…
https://phys.org/news/2026-05-airport-uncover-ultrafine-part…
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web search NEUTRAL — The site owner hides the web page description.
https://www.psi.ch/en/lac/projects/gaw-aerosol-monitoring
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“PSI researchers conducted air quality measurements in the area surrounding Zurich Airport in the winter of 2022 and the summer of 2024.”
CORROBORATED
Three independent web results (Airport readings..., Pollution from aircraft | BrightSurf, and Pollution From Aircraft | Mirage News) all report the exact same timeframe (winter 2022 and summer 2024) and location for the PSI measurements.
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web search NEUTRAL — 1 day ago · Low-sulfur fuels could be the solution. PSI researchers conducted air quality measurements in the area surrounding Zurich Airport in the winter of 2022 and the summer of 2024.
https://phys.org/news/2026-05-airport-uncover-ultrafine-part…
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web search NEUTRAL — 1 day ago · PSI researchers conducted air quality measurements in the area surrounding Zurich Airport in the winter of 2022 and the summer of 2024. In these two measurement series, each lasting severa…
https://www.brightsurf.com/news/L7V9NXD8/pollution-from-airc…
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web search NEUTRAL — 6 hours ago · PSI researchers conducted air quality measurements in the area surrounding Zurich Airport in the winter of 2022 and the summer of 2024. In these two measurement series, each lasting seve…
https://www.miragenews.com/pollution-from-aircraft-1672107/
info
“they used special equipment to capture particulate matter in the air approximately 1 kilometer downwind from runway 28”
SINGLE SOURCE
The specific detail about the equipment being 1 kilometer downwind from runway 28 is only explicitly detailed in one source provided.
travel_explore
web search NEUTRAL — In these two measurement series, each lasting several weeks, they used special equipment to capture particulate matter in the air approximately 1 kilometer downwind from runway 28, the airport's busie…
https://phys.org/news/2026-05-airport-uncover-ultrafine-part…
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web search NEUTRAL — Discover Zurich Airport (ZRH): Flight schedule and live updates, weather, car rental, and location in Switzerland.There are 1474 flights on 249 different routes from Zurich Airport, connecting ZRH to …
https://www.airportia.com/switzerland/zurich-airport/
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web search NEUTRAL — The current PM2.5 level in Blagnac Airport Runway Side is 1x the recommended WHO guideline of 15 µg/m³.Uncovering the Sources of Particulate Matter (PM2.5): Where Does It Come From?
https://www.aqi.in/ca/dashboard/france/occitanie/blagnac/bla…
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“The findings are published in the journal Environmental Science & Technology.”
SINGLE SOURCE
The claim that the findings were published in Environmental Science & Technology is mentioned in one source; other results are unrelated journals.
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web search NEUTRAL — PSI researchers conducted air quality measurements in the area surrounding Zurich Airport in the winter of 2022 and the summer of 2024.The findings are published in the journal Environmental Science &…
https://phys.org/news/2026-05-airport-uncover-ultrafine-part…
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web search NEUTRAL — study published in the December 2021 issue of the Journal of Adolescence.
https://www.sciencedirect.com/science/article/pii/S014019712…
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web search NEUTRAL — Edmondson’s study on team psychological safety.
https://journals.sagepub.com/doi/10.2307/2666999
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“During takeoff and landing, aircraft especially emit ultrafine particles (UFP) with sizes below 100 nanometers from their engines.”
CORROBORATED
Multiple sources confirm that aircraft engines emit UFPs with diameters smaller than 100 nm during takeoff and landing.
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web search NEUTRAL — Civil aviation gas turbine engines emit ultrafine particles (UFPs, diameter < 100 nm). UFPs degrade air quality because they efficiently transport their chemical content, including engine oil, into th…
https://pubs.acs.org/doi/10.1021/acsestair.4c00184
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web search NEUTRAL — Aircraft emissions of (ultra)fine particles during landing and take-off operations pose increasing human health hazards for airport employees and near-airport communities.
https://www.nature.com/articles/s41612-025-01095-9
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web search NEUTRAL — During takeoff and landing, planes emit ultrafine aerosol particles. Some particles also contain lubricating oil, as shown by measurements made by researchers from the Paul Scherrer Institute PSI ...
https://phys.org/news/2026-05-airport-uncover-ultrafine-part…
info
“The researchers detected up to 300,000 UFPs per cubic centimeter of air.”
SINGLE SOURCE
The specific figure of 300,000 UFPs per cubic centimeter is only reported in one of the provided sources.
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web search NEUTRAL — The researchers detected up to 300,000 UFPs per cubic centimeter of air. This is more than 10 times the normal background level at the airport at night when no aircraft are operating.
https://phys.org/news/2026-05-airport-uncover-ultrafine-part…
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web search NEUTRAL — A study has revealed the concentrations of ultrafine particles breathed in by airline passengers. A team of French researchers, including those from Université Paris Cité, built a pack of instruments …
https://www.theguardian.com/environment/2025/dec/12/air-pass…
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web search NEUTRAL — Exposure to ultrafine particles may be associated with 280,000 cases of high blood pressure, 330,000 cases of diabetes, and 18,000 cases of dementia in Europe, according to the new research.
https://www.ecounion.eu/en/ultrafine-particles-from-planes-p…
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“In cities, typical UFP measurements range from about 5,000 to 40,000 particles per cubic centimeter of air”
SINGLE SOURCE
The specific range of 5,000 to 40,000 particles for cities is mentioned in one source. While another source mentions a range of 0.4-1.2 x 10^4 (4,000-12,000), it does not fully corroborate the 40,000 upper limit.
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web search NEUTRAL — In cities, typical UFP measurements range from about 5,000 to 40,000 particles per cubic centimeter of air, significantly lower than the values measured at the airport.
https://phys.org/news/2026-05-airport-uncover-ultrafine-part…
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web search NEUTRAL — Urban background concentrations are at 0.4–1.2 × 104 cm−3 with a predominant particle size in the range 50–100 nm. Ferryboat traffic is a significant source of emissions near the shore along the regul…
https://pmc.ncbi.nlm.nih.gov/articles/PMC8779367/
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web search NEUTRAL — A new study, led by researchers of The Cyprus Institute, has produced the first global dataset of ultrafine particle (UFP) concentrations. These tiny particles are invisible to the human eye but can p…
https://emme-care.cyi.ac.cy/the-cyprus-institute-develops-fi…
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“A previous study at Frankfurt Airport had already found lubricating oil in the particulate matter.”
INSUFFICIENT EVIDENCE
No evidence was found in the provided search results regarding a previous study at Frankfurt Airport.
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“Every time a plane flew over the measuring station at an altitude of around 80 to 100 meters, the researchers recorded a sharp increase in the UFP concentration.”
INSUFFICIENT EVIDENCE
No evidence was found in the provided search results regarding the specific altitude (80-100m) and the resulting sharp increase in UFP concentration.
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“Only at altitudes above 300 meters are such peaks no longer detectable”
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“The peaks were more pronounced during landings than during takeoffs.”
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“Previous measurements taken directly at the engines showed that lubricating oil emissions do not occur in all aircraft types.”
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“Kerosene is one of the few fuels used in transportation for which no strict limits currently exist.”
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“the operation of aircraft auxiliary power units to generate electricity after the engines are shut down is prohibited [at Zurich Airport].”
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“sustainable aviation fuel (SAF) ... contains no sulfur and fewer undesirable soot precursors.”
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info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.