List of Dissertation Abstract（Risk Management and Environmental Sciences Life and Environment Management Course）
NameSupervisor

Title

Abstract
To clear the real pollution status for the car indoor environment in Japan, measuring the concentration of theRurika

Shigeki

HATAYAMAMASUNAGA

Health Risk Assessment ofpollutants such as VOCs (Volatile Organic Compounds), aldehydes and OPFRs (Organophosphate flame

Pollutants in Car Indoor

retardants) in the air and on the dusts collected from car cabins was carried out. The health risk assessment

Environment

taking into account the effects of the volatility of the pollutants on exposure pass ways for persons in car-Effects of Volatility of Pollutants

cabins was also carried out. The assessment results indicated that the exposure to formaldehyde via car indoor

on Exposure-air has a cause for concern about the human health (HQ (Hazard Quotient)<1.
OPFRs obtained the conclusion of not affecting at the body from the result measured this time.

Yinjie LI

Satoshi
NAKAI

Development of a Land Use
Regression Model to Estimate
Traffic-related Pollutants inYokohamaLand use regression has been used as a useful tool to estimate urban air pollution
distribution in western countries. This useful tool was never been used in Japan. The objectiveof this research is to develop a land use regression model to prove that it can be used here.
Within this research it was possible to develop LUR models in Japan. Land use information,
traffic information, road information, population information and elevation information wereused as potential predictors. These models explained a large fraction of the spatial variancein measured annual NOx, SPM and Ox concentrations.

In Miyako Island, sugar cane cultivation and cattle breeding are active. However, the soil has a poor capacity
Design of the Biomass residue inNatsuki

Koichi

Miyako Island Circulation SystemITO

FUJIE

aiming to reduce Environmentalload and Depending off-islandof fertilizer retention, so that Miyako Island has groundwater contamination and depends on support from
off-island about fertilizer. This research deals with material flow analyses about sugar cane fields managed
different fertilizer, sugar mills, and cattle husbandry to design a biomass residue circulation system whichconnects sugar cane fields and processing and cattle husbandry. Besides nitrogen leaching and soil microbe
crowd structure ware analyzed. The scenario analyses based on those results shows effects which biomass
residue circulation system provides.

Cost-benefit analysis has been used in policy evaluation for ensuring efficiency and adequacy of projects, but
Policy evaluation of theKei

Shigekiphotochemical oxidants reduction

UDUKA

MASUNAGA

measures taken by the Tokyo
metropolitan government

its applications have been very few in Japan. Thus, in this study, cost-benefit analysis was applied to thephotochemical oxidants reduction measures taken by the Tokyo metropolitan government to find out
difficulties involved in the analysis process. As a result, only limited numbers of the cost and benefit items
could be evaluated based on the current data sources provided by the Tokyo metropolitan government and theJapanese government. Establishment of well planned statistical data collection system is necessary forsufficient quantitative cost-benefit analyses.

Establishment of biomass
Shunichi

Koichirecirculating system based onOBARA

FUJIE

material balance analysis atsugarcane cultivation

Analysis of Material Flow andRyota

Koichi

Assessment of Reuse System forKANAI

FUJIEConstruction of Cassava Residues
Recycling System

Development and monitoring
KumikoTakashi

KAWATA

Kameyaanalysis of multi-component highsensitivity collecting analysis of
unregulated organic pollutants inthe atmosphere and in the rain

Plantation has some problems that decreasing of soil organic matter, emission of greenhouse gas, decreasingof yield,

expance of plantation area and environmental pollution. In this study, I research the materialbalance analysis at sugarcane factory and assess the effect about soil environment and yield by cultivationand fertilizer management. Based on these research, I study the system that combines sustainable sugarcane
cultivation and reduction of the environmental effect.

Cassava is cultivated at plantation in tropical and sub-tropical. Cultivation and processing of cassava is facedsome problems such as decreasing organic carabon in soil and yield, disposing residues from processing. For
construction of cassava residues recycling system, studying effect for soil by the difference of cultivation
management baced on physico-chemical quality and biochemical character and evaluating effect byintroducing the systems, growing up cows and collecting methane, baced on material flow analysis.
In this study, it was carried out continuous monitoring and analysis to develop the collection and analysis
method of multi-component high- sensitivity for organic pollutants unregulated in the rain and in theatmosphere. This study enable the measurement of a conventional 25 times more sensitive concentration level
for the substance to be measured the analytical method high sensitivity and of 90 % or more in the atmospheresemi-volatile organic compounds .It revealed for the presence conditions of hundreds of species of organic
pollutants in the atmosphere and in the rain by continuous monitoring .

No-tillage with green weed mulch management:NTW is the one of the sustainable management supported byJumpei

Nobuhiro

KIMURAKANEKO

Soil-plant nitrogen dynamics underno-tillage with green weed mulch
management in Sumatra, Indonesia

soil-plant functions. The objective was to evaluate the N dynamics under NTW and assess the sustainabilityof NTW in tropics. The main results were below. The yield of NTW was not significantly decreased comparedwith conventional management. And NTW sequestrated soil carbon, accumulated N in soil-plant, controlled
erosion and increased the abundance of soil biota. Therefore, this paper concluded NTW is good land use
management in tropics.

TakumaTakashiSUZUKIKAMEYA

Search of Transformation Productsof PRTR Chemicals in Water
Environment

PRTR Chemicals are degraded by photolysis, hydrolysis in water environment, and become to otherchemicals. The object of this study was to show the status of PRTR Chemicals and transformation products
pollution in river water, by using a simultaneous analysis of solid phase extraction (SPE) and GC/MS orLC/MS/MS.

Potential ecological risk of copper in marine environment has become an issue worldwide. The
bioavailability-based risk assessment of copper has come to be conducted in western countries. However,RieShigeki

TAIMASUNAGA

Screening-level aquatic ecologicallittle is known about potential risk of copper in Japanese marine area. In this study, I carried out screening-risk assessment of copper onlevel aquatic ecological risk assessment of copper using plural methods adopted in Japan, EU and US. TheJapanese coast

results based on Japanese methods indicated that most of the coastal water bodies around Japan were at risk.
As excessively conservative risk assessment tends to request excessive countermeasures appropriate
assessment methods must be selected and used.
Diverse perfluorinated compounds (PFCs) are widely used and they decompose into the regulated PFAAs inProblems concerning theJunya

Shigekiquantification method of total

NEGISHIMASUNAGA

perfluoroalkyl acids (PFAAs)
precursors

the environment. Therefore, a method to measure the amounts of PFCs in the environment is necessary.
Houtz & Sedlak proposed a quantification method that is based on the chemical oxidization of the PFCs into
their corresponding PFAAs. In this research, I studied the precision of this method. I found the decompositionof the PFCs was suppressed when TOC in the sample water was higher than 130 mg/L. In addition,
perfluorinated carbon chains were broken by the sulfate radical which was the intermediate product of thismethod. To quantify more accurately, other oxidation methods must be investigated.

This study's purpose is to consider the effect of surfactant in microbubble in order to improve the microbuble
cleaning. Microbubble cleaning can improve the detergency since the hydrophobic part is increased by adding
KanakoMasaruStabilization of the microbubbles

HATTORIOYA

for cleaning application

the surfactant. However, in the case of high concentration, surfactant molecule adsorbs to the gas-liquidinterface as well as the soiled. Thus, it’s necessary to choice appropriate surfactant concentration to perform
efficient microbubble cleaning.
converted to a PDF while retaining the format (font style, size, etc)
and uploaded to our school's website.
Mass and inorganic elements concentrations of indoor and outdoor PM 2.5 were determined. TheMeasurement of PM 2.5 mass andanalytical method of inorganic elements for this study based on the "acid digestion/ICP-MS method" by theYusuke

Satoshiinorganic component

Ministry of the Environment was also examined. In some cases, indoor PM 2.5 mass concentrations wereBABA

NAKAI

concentrations inside and outside

different from outdoor concentrations. The inorganic element compositions of indoor PM 2.5 were notresidences

consistent with those of outdoor PM 2.5 at some homes with short-time ventilation, smokers, etc., even under
the same mass concentrations.
It is suggested that short-term exposure to particulate matter is related to adverse health effects. The existing
researches show that transport microenvironments always have higher exposure than others. In this study, weZHANG

Satoshi

Study on Personal Exposure ofYIBINGNAKAI

SPM while Commuting to Campus

measured personal exposure of 8 students to the SPM for 24 hours, using portable monitor and recorded theactivity pattern with GPS and questionnaire. The purpose of the study is to clarify the condition of transport
microenvironment and to find the factor of concentration fluctuation. As the result, we observed the higher
exposure during commuting and found that people crowded and heavy traffic on roads are the major
influential factors to personal exposure of SPM while commuting in this study.
In order to clarify the ecological charasteristics of climbing plants in suburban, we choose six fields including

Zhiyong

FumitoThe ecological characteristics ofBai

Koike

Climbing Plants

park in downtown, in suburban, in Satoyama and in mountainous region. As the result, we suggest that theclimbing plants which are herbaceous and can grow highly. And it is easy for the parks in downtown to be
intruded by invade climbing plants. In order to avoid the Intrusion, we can make the height of vegetation
above 6m.