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Environmental Quality Prediction Lab (Research Center for Environmental Quality Management)
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A lab that detects microorganisms and chemicals in water to protect the urban water cycle.

AboutAbout the lab
Toward a healthy urban water cycle.
The Environmental Quality Prediction Lab studies how pollutants released by human and social activities behave in the environment, and how they affect human health and aquatic organisms.
It aims to improve and evaluate environmental quality, prevent pollution, and restore the environment.
Based on field surveys and experiments, the lab uses instrumental analysis and biological assays to determine how much of each pollutant is present.
Located at the Research Center for Environmental Quality Management on the shore of Lake Biwa, the lab also studies countermeasure technologies and management methods.
Key terms
- Combined sewer overflow (CSO)
- During heavy rain, the portion of sewage that cannot be fully treated and flows out into rivers and other water bodies together with rainwater (CSO)
- Membrane treatment
- A water treatment method that passes water through a membrane with very fine pores to filter out impurities and microorganisms
- Bioassay
- A method that uses the responses of cells or organisms to examine the toxicity or potency of a substance
ResearchResearch themes
The lab studies the behavior of pollutants from human and social activities in the environment, and their effects on human health and aquatic ecosystems. By clarifying the actual state of pollutants and studying countermeasure technologies and management methods, it aims to contribute to building a healthy urban water cycle.
*Illustrative imageTracking pathogenic microorganisms in water
In the Lake Biwa and Yodo River watershed, the lab uses tools such as next-generation sequencers to investigate the actual state and sources of contamination by microorganisms, including pathogenic viruses. It is also studying the impact and control of combined sewer overflows on rainy days, and technologies for measuring infectious viruses.
*Illustrative imageCompetitive water reuse technologies
The lab tests water reclamation technologies that combine membrane treatment, oxidation by ozone, ultraviolet light, or photocatalysis, and biological treatment, from the laboratory to the demonstration scale. This research evaluates the quality and risks of reclaimed water, and aims to ensure safety while reducing the energy and cost of treatment.
*Illustrative imageManaging everyday chemicals that transform
Chemicals change as they flow through water supply and sewerage systems and rivers, but current regulations do not take this into account. Using tests that account for these changes and high-resolution mass spectrometry, the lab identifies overlooked substances and proposes new management methods.
*Illustrative imageInvestigating the toxicity of pharmaceuticals in water
Contamination of the water environment by pharmaceuticals has been reported in Japan and abroad. By combining bioassays that measure the potency of pharmaceuticals with mass spectrometry, the lab clarifies the actual state of pharmaceuticals in the water environment and their effects on aquatic organisms, and presents guideline values for safe reduction.
MembersFaculty
The members of the Environmental Quality Prediction Lab are faculty, project researchers, technical assistants, students in the doctoral program, the master's program, and the undergraduate program, and research students.
- ProfessorFumitake Nishimura
- Program-Specific LecturerHaruka Takeuchi
- Assistant ProfessorSaiji Uyo
- Program-Specific Assistant ProfessorYANG Mingyue
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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: “EPA GULF BREEZE LABORATORY, CHEMISTRY LAB. THE CHEMIST IS TESTING WATER SAMPLES FOR PESTICIDES - NARA - 546277” William C. Shrout / Public domain (cropped)
- Tracking pathogenic microorganisms in water: “Rotavirus Reconstruction” Graham Beards / CC BY 3.0 (cropped)
- Competitive water reuse technologies: “Amberley Water Recycling Centre, Amberley, West Sussex 02” Mertbiol / CC0 (cropped)
- Managing everyday chemicals that transform: “Breto kun hejmaj kemiaĵoj kaj kosmetikaĵoj en vendejo (Zavodouspenskoje, 2021)” RG72 / CC BY-SA 4.0 (cropped)
- Investigating the toxicity of pharmaceuticals in water: “Pill 3” freestocks.org / CC0 (cropped)
- Related lab (環境リスク工学): “Soilcontam” Dumelow / CC BY-SA 4.0 (cropped)
- Related lab (環境質管理 (流域圏総合環境質研究センター)): “Algae on the River Welland in Stamford - geograph.org.uk - 6950620” Richard Humphrey / CC BY-SA 2.0 (cropped)
- Related lab (水環境工学): “ČBu, wastewater treatment plant 05” Czeva / CC BY-SA 4.0 (cropped)
- Related lab (砂防工学): “Debris flow lawina 4” Mirosław Mrozik / CC BY-SA 4.0 (cropped)
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