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Hatano Lab
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A lab that models the long-term transport of pollutants in the environment.
AboutAbout the lab
Predicting the long-term transport of pollutants with models.
The Hatano Lab studies how pollutants spread through the natural environment.
Using radionuclides as tracers, the lab builds models of long-term, wide-area pollution phenomena such as air pollution and groundwater contamination.
Some phenomena cannot be described well by the ordinary advection-diffusion equation. A new type of advection-diffusion equation has been proposed, and it reproduces observed data more accurately.
Noting that this new equation has fractal properties, the lab aims to develop useful tools that apply fractals.
Key terms
- Advection-diffusion equation
- An equation describing how pollutants spread while being carried by a flow. It has been widely used to predict groundwater contamination
- Fractal
- A shape with no characteristic length. Its features do not change when it is enlarged or reduced, and a coastline is an example in nature
- Tracer
- A substance used as a marker to follow the movement of materials. This lab uses radionuclides
NewsLab news
A paper by a research fellow (on the transport of microplastics in Lake Tana, Ethiopia) was published
A paper by a master's student was the subject of a press release from the University of Tsukuba
A paper by a master's student was published in KEK Proceedings
ResearchResearch themes
The lab investigates how pollutants spread through the natural environment, using air pollution and groundwater contamination as examples. Using radionuclides as tracers, it is building models of long-term, wide-area pollution phenomena.
*Illustrative imageLong-term, wide-area transport models for pollutants
Recent wide-area, long-term observational data have revealed phenomena that the ordinary advection-diffusion equation cannot describe. Because a new type of equation reproduces observed data more accurately, the lab uses it as the basis for models of long-term, wide-area pollution phenomena.
*Illustrative imageDeveloping tools that apply fractals
A fractal is a shape with no characteristic length, whose features do not change when it is enlarged or reduced. Using this property, the lab aims to develop useful tools that apply fractals, much like the dimensionless numbers used in engineering.
*Illustrative imageLong-term prediction of airborne radioactive materials
The lab studies models that can predict, over a long period and a wide area, the atmospheric concentrations of materials such as Cs, which has a half-life of about 30 years and was released in the Chernobyl and Fukushima nuclear accidents. Conventional studies of atmospheric dispersion have been applicable only over a period of a few years.
MembersFaculty
Members of the Hatano Lab consist of faculty members, research fellows, part-time researchers, administrative assistants, master's and undergraduate students, and international students.As of 2026
- ProfessorYuko Hatano
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Particle Pollution in Eastern China (13919)” NASA image created by Jesse Allen, Earth Observatory, using data obtained from the MODIS Rapid Response team. / Public domain (cropped)
- Long-term, wide-area transport models for pollutants: “Irene's Sediment in New York Harbor ( )” NASA Goddard Space Flight Center from Greenbelt, MD, USA / CC BY 2.0 (cropped)
- Developing tools that apply fractals: “Fractal Broccoli” Jon Sullivan / Public domain (cropped)
- Long-term prediction of airborne radioactive materials: “Dosimeter measuring radiation in the Chernobyl Exclusion Zone” Jennifer Boyer from Fredrick, Maryland, USA / CC BY 2.0 (cropped)
- Related lab (Granular Mechanics and Geotechnical Engineering Lab): “Soil nail installation for a highway abutment” AppalachianCentrist / CC BY 4.0 (cropped)
- Related lab (Computational and Structural Engineering Lab): “Fukui Earthquake 1948 - damaged building” Bert Cohen / Public domain (cropped)
- Related lab (Biomechanics Lab): “MotionCapture” T-tus at English Wikipedia / CC BY-SA 3.0 (cropped)
- Related lab (Kameda Lab): “Gas Laser Interferometer in the Electric Conversion Laboratory (GRC-1966-C-03919)” NASA Glenn Research Center / Public domain (cropped)
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