Assessment on the effects on ecosystems and the environment

Title of Research:
12_PT04-01-2

Comprehensive evaluation methods for chemicals registered inPRTR.
Principal Investigator:
Norihide Nakada (Research center for Environmental Quality Management, Graduate School ofEngineering, Kyoto University)
520-0811, 1-2 Yumihama, Otsu, Shiga, +81-77-527-6220, nakada.norihide.8w@kyoto-u.ac.jp
Collaborators:
Shuhei Tanaka (Graduate School of Global Environmental Studies, Kyoto University)
606-8501, Yoshida-honmachi, Sakyo, Kyoto, +81-75-753-5151, t-shuhei@eden.env.kyoto-u.ac.jpSummary of Research:
For chemicals registered in PRTR, four test methods were established to evaluate formation
potentials of trihalomethanes, aldehydes, and nitrosamines during oxidation processes usingozone, chlorine or chloramine. In addition, a quick and robust oxidation method was developed toevaluate formation potential of perfluorocarboxylic acids (PFCAs) from their precursors inwastewater samples. These methods were applied to wastewater and river water samples.
Timeline: November 1, 2012 – February 28, 2015
Topics: Poster presentation at 2nd Annual Conference of LRI
Publications:1) Yuji SUZUKI, Shuhei TANAKA, Shigeo FUJII, Norihide NAKADA, Kazuma ISHIKAWA,Kongpran JIRA, and Norimitsu SAITO, “Study on Behavior of Perfluorocarboxylic Acids inWastewater Treatment Plants in Consideration of the Formation Potential from TheirPrecursors”, Journal of Japan Society of Civil Engineers, Vol.70 (7): p.III55-p.III64, 2014.
2) Yuji SUZUKI, Shuhei TANAKA, Shigeo FUJII, Norihide NAKADA, Kongpran JIRA, Kazuma
ISHIKAWA, and Norimitsu SAITO, “Study on Formation Behavior of PerfluorinatedCompounds from Their Precursors in Wastewater Samples”, The 48th Annual Conference ofJapan Society of Water Environment, Sendai, Japan, March 2014.
3) Yuji SUZUKI, Shuhei TANAKA, Shigeo FUJII, Norihide NAKADA, Kongpran JIRA, Kazuma
ISHIKAWA, and Norimitsu SAITO, “Study on the examination methods of formation potential ofperfluorinated compounds from their precursors in wastewater samples by preservation andoxidation processes”, The 23th Annual Conference of Japan Society for Environmental
Chemistry, Kyoto, May 2014.
4) Shuhei ITAI，Norihide NAKADA，Yongkui YANG，Hiroaki TANAKA, “Development ofby-products formation potential test for PRTR chemicals during oxidation processes”, The 23th
Annual Conference of Japan Society for Environmental Chemistry, Kyoto, May 2014.
5) Yuji SUZUKI, Shuhei TANAKA, Shigeo FUJII, Norihide NAKADA, Kongpran JIRA, Kazuma
ISHIKAWA, and Norimitsu SAITO, “Study on formation potential of perfluorinated compounds
from their precursors by oxidation processes and determination of intermediate products”, The36th Annual Conference of the Association of Environmental & Sanitary Engineering
Research, Kyoto, July 2014.
6) Shuhei ITAI, Norihide NAKADA, Hiroaki Tanaka, Formation potential test for individualchemicals during oxidation processes. The 36th Annual Conference of the Association ofEnvironmental & Sanitary Engineering Research, Kyoto, July 2014.
7) Yuji SUZUKI, Shuhei TANAKA, Shigeo FUJII, Norihide NAKADA, Jira KONGPRAN, Kazuma
ISHIKAWA, and Norimitsu SAITO, “Study on Oxidation Conditions in Evaluating Formation
Potential of Perfluorinated Compounds from their Precursors”, The 17th Annual Symposium ofJapan Society of Water Environment, Hikone, Japan, September 2014.
8) Yuji SUZUKI, Shuhei TANAKA, Shigeo FUJII, Kazuma ISHIKAWA, Norihide NAKADA, Tsz Kit
LIU, and Norimitsu SAITO, “Stuvey on Occurrences of Perfluorinated Compounds and theirFormation Potentials in Wastewater Samples in Dissolved and Particulate Phases”, The 49th
Annual Conference of Japan Society of Water Environment, Kanazawa, March 2015.