ログイン
言語:

WEKO3

  • トップ
  • ランキング
To
lat lon distance
To

Field does not validate



インデックスリンク

インデックスツリー

メールアドレスを入力してください。

WEKO

One fine body…

WEKO

One fine body…

アイテム

  1. 139 大気海洋研究所
  2. 80 国際沿岸海洋研究センター
  3. Coastal Marine Science
  4. 29
  5. 2
  1. 0 資料タイプ別
  2. 30 紀要・部局刊行物
  3. Coastal Marine Science
  4. 29
  5. 2

An assessment of water quality along the rivers loading to the Manado Bay, North Sulawesi, Indonesia

https://doi.org/10.15083/00040809
https://doi.org/10.15083/00040809
d3644a73-8b90-4566-b862-8fd6cf86e924
名前 / ファイル ライセンス アクション
KJ00004186960.pdf KJ00004186960.pdf (809.4 kB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2007-04-05
タイトル
タイトル An assessment of water quality along the rivers loading to the Manado Bay, North Sulawesi, Indonesia
言語
言語 eng
キーワード
主題Scheme Other
主題 water quality
キーワード
主題Scheme Other
主題 wastewater management
キーワード
主題Scheme Other
主題 Manado Bay
キーワード
主題Scheme Other
主題 Manado
キーワード
主題Scheme Other
主題 Indonesia
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
ID登録
ID登録 10.15083/00040809
ID登録タイプ JaLC
著者 Lasut, Markus T.

× Lasut, Markus T.

WEKO 139666

Lasut, Markus T.

Search repository
Jensen, Kathe R.

× Jensen, Kathe R.

WEKO 139667

Jensen, Kathe R.

Search repository
Arai, Takaomi

× Arai, Takaomi

WEKO 139668

Arai, Takaomi

Search repository
Miyazaki, Nobuyuki

× Miyazaki, Nobuyuki

WEKO 139669

Miyazaki, Nobuyuki

Search repository
著者所属
著者所属 Integrated Tropical Coastal Zone Management, Asian Institute of Technology, Thailand
著者所属
著者所属 International Coastal Research Center, Ocean Research Institute, The University of Tokyo
著者所属
著者所属 Center for International Cooperation, Ocean Research Institute, The University of Tokyo
抄録
内容記述タイプ Abstract
内容記述 In the city of Manado, rivers are used for water drainage and sewer system of various wastewater discharges, including from toilets ; these rivers discharge their load to Manado Bay. Therefore it is extremely important to know the water quality of these rivers. In this study three selected rivers, Sungai Bailang (SB), S. Maasing (SM), and S. Tondano (ST), were assessed in regard to 5-days Biochemical Oxygen Demand (BOD_5), nitrate (NO_3^-), ortho phosphate (PO^<3->_4), total coliform (TC), Escherichia coli (EC), and total mercury (Hg-tot) to indicate loads of organic matter, inorganic nutrients, bacteria, and metals, respectively. Existing concentrations, variations with seasons (dry and wet), and pollution status of the rivers, are presented and discussed in this paper. Except the levels of TC and EC, which were high in all rivers and seasons, these parameters varied according to space (within the river and among the rivers) and the seasons. Average levels loaded to the bay for (1) organic were 15.30 mg/l of BOD_5 in the dry season and 7.52 mg/l of BOD_5 in wet season ; (2) inorganic of NO^-_3 and PO^<3->_4 were 2.01 mg/l of NO^-_3 and 1.71 mg/l of PO^<3->_4 in the dry season, and 1.44 mg/l of NO^-_3 and 2.20 mg/l of PO^<3->_4 in the wet season ; (3) Hg-tot in the water and the surface sediment of ST was 0.024 mg/l and 0.133 mg/kg in the dry season, and 0.081 mg/l and 0.130 mg/kg in the wet season. The level of Hg-tot accumulated in the marine bivalve, Soletellina sp., ranged between 0.012 and 0.124 mg/kg. Based on these results, the water quality of the rivers was assessed as polluted. This was perhaps attributable to the presence of input of wastewater discharging from residential sources of the city and from the hinterland agricultural area of Minahasa Regency (MR). This condition may further threaten the water quality of Manado Bay ; therefore, management measures are also identified and discussed.
書誌情報 Coastal marine science

巻 29, 号 2, p. 124-132, 発行日 2005-01-31
ISSN
収録物識別子タイプ ISSN
収録物識別子 13493000
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA11957899
フォーマット
内容記述タイプ Other
内容記述 application/pdf
日本十進分類法
主題Scheme NDC
主題 452
出版者
出版者 International Coastal Research Center, Ocean Research Institute, the University of Tokyo
出版者別名
東京大学海洋研究所国際沿岸海洋研究センター
戻る
0
views
See details
Views

Versions

Ver.1 2021-03-01 13:20:40.995378
Show All versions

Share

Mendeley Twitter Facebook Print Addthis

Cite as

エクスポート

OAI-PMH
  • OAI-PMH JPCOAR 2.0
  • OAI-PMH JPCOAR 1.0
  • OAI-PMH DublinCore
  • OAI-PMH DDI
Other Formats
  • JSON
  • BIBTEX

Confirm


Powered by WEKO3


Powered by WEKO3