Yoshiaki Tsuzuki

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Environment Kuznets Curve (EKC) Relationships between Pollutant Discharge Per Capita (PDC) of Domestic Wastewater and Income Indicators

SSRN Electronic Journal (2009)

Yoshiaki Tsuzuki

Relationships between domestic wastewater pollutant discharges per capita (PDCs) and economic development indicators were discussed in this paper. Chronological relationships of PDCs (CODMn, TN and TP) with income indicators in the drainage area of Lakes Shinji and Nakaumi in 1955-93 showed statistically significant inverted U-shaped curve, namely environmental Kuznetz curve (EKC). CODMn discharge per capita (PDC-CODMn) in 47 prefectures in Japan in 2004 spatially had one-order relationship with an income index, which was regarded as the latter portion of the EKC. However, significant relationships were not observed for TN and TP discharges per capita (PDC-TN and PDC-TP), which should reflect area-specific regulations on the nutrients discharge. Graphical distribution of PDC-BOD and PPP-GNI per capita in developing countries in coastal areas in 2000±2 showed grouping of the coutries by each region. The relationship between BOD discharge per capita (PDC-BOD) and purchase power parity based gross national income (PPP-GNI) per capita showed that PDC-BOD were in wide range when PPP-GNI per capita was smaller and in narrow range when PPP-GNI per capita was larger. The relationship between PDC-BOD and newly introduced water, sanitation and economic parameter (WSEI) showed the same tendency. The transition levels were US$ 3,000-4,000 for PPP-GNI and 1.0 for WSEI. These relationships were similar to the original Kuznets relationship of economic growth and incomeinequality.

Kuznets Curve

Per capita income

Gross national income

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Citations (2)

CURRENT CONDITIONS AND RESIDENCE PREFERENCES OR CITIZENS' PERCEPTIONS ON NONCONVENTIONAL WATER RESOURCES

Journal of Japan Society of Civil Engineers Ser G (Environmental Research) (2011)

Yoshiaki Tsuzuki Toshiya Aramaki

都市分散型水資源の一般市民の選好,認識をインターネット調査と階層分析法(AHP),支払意志額(WTP)により検討した.AHPの評価基準は自然環境,生活を重要視していた.水源は雨水,下水処理再生水,地下構造物浸出水,用途は一部に有意水準5%で有意でない順位もあるが,農業・園芸用水,災害用水,雑用水,親水用水,散水の順番で重要視していた.3種類の方法で求めた重みベクトルは理論的には一致するが,本研究では評価基準数が増すことにより代替案間の差が小さくなり,この点についてはAHPの今後の検討課題である.水源の公的WTPは53,100~55,100円/年/人,私的WTPは19,100~20,800円/年/人で,順位は重みベクトルと同様であった.属性について解析することにより,水源と用途に関する効果的な情報提供の対象と内容が抽出された.

10.2208/jscejer.67.178

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PHOSPHORUS REMOVAL AND BACTERIAL FLORA OF ANAEROBIC-AEROBIC ACTIVATED SLUDGE PROCESS

Environmental Engineering Research (1989)

Yoshiaki Tsuzuki Takashi Mino Tomonori Matsuo

Flora

10.11532/proes1983.25.197

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Citations (4)

ON-SITE TREATMENT SYSTEMS IN THE WASTEWATER TREATMENT PLANTS (WWTPs) SERVICE AREAS IN THAILAND : SCENARIO BASED POLLUTANT LOADS ESTIMATION

Journal of global environment engineering (2009)

Yoshiaki Tsuzuki Thammarat Koottatep Suraphong Wattanachira Yuttachai Sarathai Chira Wongburana

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Citations (10)

Soft Measures in Households

SpringerBriefs in water science and technology (2014)

Yoshiaki Tsuzuki

10.1007/978-3-319-04756-0_3

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Decision Support EST Evaluation System for Sustainable Eco-Industrial Estates and Regions

Chikyuu Kankyou Shimpojiumu kouen rombunshuu (2004)

Tsuyoshi Fujita Shung Fung Chiu Yoshiaki Tsuzuki Per se Stutz

This paper focuses on the application of EST guideline system on integrated urban management policies for sustainable regional growth or environmentally sound urban regeneration. It is to present strategic visions and guidelines for the environmental management for Kawasaki City, Japan. by providing significant and practical recommendations and strategies for Kawasaki City. This paper contains the thllowing contents.Firstly, planning system and driving schemes for Kawasaki Eco-town Project developments are provided. Relevant legal and financial systems of urban policies for Eco-town Projects are provided as well as project goals including the reduction of GHG for municipal urban programs are also provided. Secondly the research scheme to identify the function of Eco town project as a driving force for circular Kawasaki Metropolises is proposed. Extensive circular ties with neighboring factories; neighborhood metabolism or zero-emission districts, expansion on eco-efficient product chain management and core function for city-scale or waterfront zone circular economies are investigated.

Vision

10.2208/proge.12.197

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Citations (0)

Evaluation of the soft measures' effects on ambient water quality improvement and household and industry economies

Journal of Cleaner Production (2013)

Yoshiaki Tsuzuki

10.1016/j.jclepro.2013.10.047

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Citations (8)

Municipal wastewater pollutant discharge reduction: possibilities of "soft interventions" in households in Japan and in Thailand

Yoshiaki Tsuzuki Thammarat Koottatep Yuttachai Sarathai