Reconstruction of pollution history in tropical Asia by using sediment cores.

2009 Fiscal Year Final Research Report

• Project/Area Number: 19404001
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 海外学術
• Research Field: Environmental dynamic analysis
• Research Institution: Tokyo University of Agriculture and Technology
• Principal Investigator: TAKADA Hideshige Tokyo University of Agriculture and Technology, 大学院・共生科学技術研究院, 教授 (70187970)
• Co-Investigator(Kenkyū-buntansha): WATANABE Izumi 東京農工大学, 大学院・共生科学技術研究院, 准教授 (30302912) ; KATOH Yoshihisa 東海大学, 海洋学部, 教授 (00152752)
• Co-Investigator(Renkei-kenkyūsha): OHJI Madoka 東京農工大学, 大学院・共生科学技術研究院, 准教授 (40447511)
• Project Period (FY): 2007 – 2009
• Keywords: 柱状堆積物 / 汚染史 / 熱帯アジア / 環境汚染 / モニタリング / 多環芳香族炭化水素 / ホパン / アルキルベンゼン

Research Abstract

Sediment cores of ～50cm to ～100cm were collected from Gulf of Thailand, Straits of Johor, Jakarta Bay, and Gulf of Tonkin. Hopanes, polycyclic aromatic hydrocarbons (PAHs) and linear and branched alkylbenzenes were measured in sliced layers to reconstruct pollution history. In Gulf of Thailand, Straits of Johor, Jakarta Bay, and Gulf of Tonkin, there observed increased inputs of automobile- derived hydrocarbons. In these water bodies, increased inputs of synthetic-detergent-derived contaminants were observed. Isomeric compositions of linear alkylbenzenes suggest expansion of the coverage of sewage treatment systems in the catchment of Manila Bay and Jakarta Bay.

Research Products

• [Journal Article] Sources of sedimentary PAHs in tropical Asian waters: differentiation between pyrogenic and petrogenic sources by alkyl homolog abundance. (2009)
  • Author(s): Mahua Saha, Ayako Togo, Kaoruko Mizukawa, Michio Murakami, Hideshige Takada, Mohamad P. Zakaria, Nguyen H. Chiem, Bui Cach Tuyen, Maricar Prudente, Ruchaya Boonyatumanond, Santosh Kumar Sarkar, Badal Bhattacharya, Pravakar Mishra, Touch Seang Tana
  • Journal Title: Mar. Pollut. Bull vol.58 Pages: 189-200
• [Journal Article] Sources of polycyclic aromatic hydrocarbons (PAHs) in street dust in a tropical Asian mega-city (2007)
  • Author(s): Bangkok, Thailand. Ruchaya Boonyatumanond, Michio Murakami, Gullaya Wattayakorn, Ayako Togo, Hideshige Takada.
  • Journal Title: Sci. Total Environ vol.384 Pages: 420-432
• [Journal Article] Reconstruction of pollution history of organic contaminants in the upper Gulf of Thailand by using sediment cores: first report from Tropical Asia Core (TACO) project. (2007)
  • Author(s): Ruchaya Boonyatumanond, Gullaya Wattayakorn, Atsuko Amano, Yoshio Inouchi, Hideshige Takada.
  • Journal Title: Mar. Pollut. Bull. vol.54 Pages: 554-565
• [Presentation] Distribution and source identification of polycyclic aromatic hydrocarbons (PAHs) in aquatic environment in India. (2009)
  • Author(s): M. Saha, H. Takada, B. Bhattacharya
  • Organizer: 2nd International conference on Ecotoxicology & Environmental Sciences
  • Place of Presentation: Kolkata (India)
  • Year and Date: 2009-12-15
• [Presentation] Distribution of atmospheric polycyclic aromatic hydrocarbons (PAHs) in tropical Asian countries. (2009)
  • Author(s): M. Saha, H. Takada, B. Bhattacharya
  • Organizer: 18th symposium on Environmental Chemistry Tsukuba
  • Place of Presentation: Japan
  • Year and Date: 2009-06-10