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

Title

Abstract
Methods evaluating foam include a foaming examination, the measurements of surface chemical

The effect of the physicochemical
Shiori ARIMA

Masaru OYA

foam characteristics and surfactant
characteristics on the foam feelingproperties or sensory evaluation. In the present circumstances, it is common to perform a sensory evaluation
when we evaluate the foam feeling. However, a sensory evaluation has the weak points. For example, weshould consider that personal difference occurs. Furthermore, we should adopt a great number of panels forsensory evaluations to obtain reliable data. Therefore, we aim at clarifying the determinative factors of thefoam feeling to propose a method for quantitatively evaluating the foam feeling.

Development on LC/MS/MS
Toshihiro

TakashiInternal Standard Analysis

IIZUKAKAMEYA

Database for Non-regulated
Chemicals and its Application

The database of LC/MS/MS simultaneous analysis including mass spectrums, liquid chromatography
retention times and calibration curves were investigated for non-regulated chemicals, for which GC/MS
AIQS-DB system could not applied. The calibration curves using internal standards could be made for 70
chemicals and the LOQ were 1μg/L for 40 chemicals. The monitoring by using this method were done in 38
rivers, as the results, all 70 chemicals were detected and 34-49 chemicals were detected in each site.
Recently there is a growing interest and urgent demand for conservation agriculture because it will enable

KosukeNobuhiroINOUE

KANEKO

Relationship between soil foodweb

us to establish sustainable cultivation system. To adopt the conservation agriculture may enhance soil

structure and nitrogenecosystem service, like nitrogen mineralization. However, there is few study of quantify the ecosystemmineralization under theservice at conservation agriculture system. Therefore, the aim of this study is to quantity nitrogenconservation agriculture

mineralization at conservation agriculture field.

management

The results suggest that nitrogen mineralization rates in

the no-tillage were higher compared to the tillage system. The introducing no-tillage is a good managementfrom the perspective of driving nitrogen cycling by soil food web.

The heavy metals in the sediments cause recontamination of upper layer water, and they are toxic to thebenthic organisms. Elution potential and toxicity depend on the bioavailability associated with the existing

Kenta OISHI

Shigeki
MASUNAGA

Bioavailability and Chemical
Species of Metals in Enclosed Sea
Sediments

form, but in Japan there are few analysis cases that take these into consideration. In this study, I analyzed
the concentration of heavy metals in the bottom sediments from various components including the existenceform in the enclosed sea and evaluated their bioavailability. Results showed that the bioavailability of heavy
metals was difficult to predict from the total concentration and it varied depending on metal species.
Comparing the two enclosed sea, it was suggested that organic matter is an important index for evaluating
the bioavailability of metals.
Most of the discharge destination of used chemicals are atmosphere, and the monitoring is important toknow their actual situation.

TakumiTakashi

OHASHIKAMEYA

Monitoring of Japanese PRTR

Therefore, in this study, we conducted the monitoring of 299 Japanese PRTR chemicals, which can bechemicals in mobile exhaust gas

simultaneously analyzed by the GC-MS AIQS-DB method, and 15 carbonyl compounds, which can beand atmosphere

analyzed by the DNPH-LC-ESI-MS/MS method, in exhaust gas and atmosphere.
As a result, the chemicals with large emission volumes and/or without previous detection in past studies
were newly found, and they were likely to be harmful air pollutants.
The National Institute of Technology and Evaluation (NITE) conducted "questionnaire survey on humanYuki

Satoshi

KAWANO

NAKAI

Research on exposure evaluationfrom fragrance / deodorant using
life pattern data

life and behavior patterns". This survey investigated the details of acts done in the home. In this study, weused the placement type fragrance / deodorant as a target product and examined parameters required for
estimation by using exposure distribution estimated by NITE's questionnaire survey result. As a result, it
was suggested that the contribution of the indoor area to the exposure amount was large in the inhalation
exposure due to the steady emission, which is an important parameter.
A method for quantifying the total amount of perfluoroalkyl acids (PFAAs) precursors has been proposed.

Examination of total amountShoSigeki

KITAGUCHIMASUNAGA

determination method of telomer
type perfluoroalkyl acid precursor
and grasp of balance inenvironment

This is a method of decomposing precursor into perfluoroalkylcarboxylic acids (PFCAs) and quantifying it,
but there is a problem that telomeric precursors generate short chain PFCAs by decomposition. Telomericprecursors also contribute to the expansion of PFCAs contamination. Therefore, we aimed to investigate
optimal oxidative decomposition conditions of telomeric precursors and grasp the balance in theenvironment. It was found that it is difficult to grasp the total amount of precursor for each carbon chain in
optimum oxidative decomposition conditions. In addition, the balance of PFAAs and precursors did notmatch in each treatment process in grasping the balance at the sewage treatment plant.

In this study, I set up nest boxes for Ural owl in northern part of Nagano and analyzed the influence of theYukikoFumito

The life history strategy andKUSAMA

KOIKE

nesting sites of Strix uralensis

nesting sites on the life history strategy such as the number of eggs and survival rate (hatching rate). As aresult, the nesting place tends to be occupied a place with low altitude, and the landscape with many forest
edges as a nesting place. The number of eggs is larger at the place with low altitude. In addition, pairs
which have many eggs especially prefer the forest edge to breed.
Bluefin tuna (Thunnus orientalis) is an important fishery resource in Japan and is used as seedling forYuta

Hiroyuki

TAKEMOTO

MATSUDA

Evaluation of age-specific impact
by fishing to Pacific bluefin tuna(Thunnus orientalis) resources

edible or culturing. However, at the International Scientific Committee of the North Pacific Tuna (ISC) heldin 2016, the resource of bluefin tuna was evaluated as being at a low level. In order to recover the resourcesfrom the low state, it is required to quantify the influence of the fishery received by the bluefin tuna
resources and to find out what kind of management method is appropriate from there. In this research, weaim to grasp the current state of resources by quantifying the influence of bluefin tuna from fishery.
In order to speed up the environmental impact assessment (EIA) procedure for wind power generation, wedevelop an assessment method for the avian collision risk with wind turbines. We divided the target area

Impact assessment method of wind

into a 200m square grid, took the flight distance in the grid as a target variable, and selected nineKeiichiro

Hiroyuki

power generation projects on birds

environmental factors as explanatory variables. We construct a model to estimate the flight distance in theTANIMATSUDAby Bayesian model using othergrid of the project site with the estimated value in the training data area as a prior distribution, and conduct

area data as prior distribution

a risk assessment method from the fewer number of survey days. The error of estimated collision number ismostly about ±0.1 birds per year, and the EIA procedure can be accelerated by using training data in otherareas.
In a Japanese general sewage treatment plant, we measured the concentration of phosphoric acid ester flame

Determination and mass balance ofYuya

Shigeki

phosphoric acid ester flame

NAGASHIMAMASUNAGA

retardants in a Japanese generalsewage treatment plant

retardants, which was used as a substitute of brominated flame retardants which maybe had a toxicity, andestimated mass balance in each treatment process. As a result, Tris (2-chloro-1-methylethyl) phosphate was
the dominant compound in twelve phosphoric acid ester flame retardants we measured. We calculated aremoval efficiency from a mass balance we estimated from a detected concentration. The removal
efficiency of them was 33-90%. Most compounds was removed by a degradation but the compound whoselog Kow was high was also removed by an adsorption to a sludge.

It is under consideration for various metals to establish environmental quality standards for conservation ofthe living environment. Since it is widely known that the toxicity of metals depends on their speciation andYu

ShigekiNISHIMURA

MASUNAGA

Concentration and Speciation ofMetals in Seawater in Enclosed
Coastal Seasbioavailability, establishing the standards that take these into consideration is desirable. In this study, I havemeasured concentrations and evaluated speciation and bioavailability of metals in seawater in Japanesemajor enclosed coastal seas, where there are only few studies referring to them. This study has revealed that
their actual conditions are significantly different for each seas or metals, and suggested how the appropriate
environmental quality standards for metals are established. It has also mentioned the applicability ofvarious bioavailability evaluation methods and the necessity of pursuing optimal experiment conditions.

Takahiro

Fumito

NIWA

KOIKE

Range expansion of alien lizards,A.carolinensis, which invaded Anijima island in 2013, preys on endemic insects. Analyzing the data on theAnolis carolinensis, on Anijima

number of catches of A.carolinensis and effort, I estimated the parameters of spatiotemporal population

Island, Japandynamics and the number of unknown populations using Bayesian estimation.
Indoor and outdoor PM2.5 mass concentrations and their time variations were measured at 3 residences inYokohama, for 10 days during the winter and summer in 2017. Inorganic elements were analyzed by ICP-Ryosuke

Satoshi

MAKIGINAKAICharacterization of indoor-outdoor

MS and EDXRF. The measurement results in the winter are shown in this manuscript. Indoor and outdoor

PM2.5 mass concentration andconcentrations in all residences were lower than the 24hr environmental standards (35µg/m3). Althoughinorganic composition

elevation of Indoor concentrations attributed to incense sticks was not observed, smoking and cooking
contributed to indoor PM2.5 concentrations. I/O concentration ratios of inorganic elements were lower than
1 except Cd at the home with a smoker.

Chemical oxidation processes forZhixi ZHUTakashi
KAMEYA

pharmaceuticals and personal careproducts in aquatic environmental:
degradation kinetics andcharacteristics

In this research, the degradation tests of 44 pharmaceutical and personal care products, which were detected
out in aquatic environment, were performed by using 4 type of chemical oxidant (chlorine, ozone, Fenton
reagent, ferrous[Ⅱ]-activated persulfate). Concentration change were investigated by LC-ESI-MS/MS
simultaneous analysis method and the degradation characteristics of 44 compounds in different oxidation
process were classified by pseudo-first-order kinetic constants. The degradation byproducts of easilyoxidized compounds, and the influence of sewage matrix were also investigated.

Although the filter method is the standard method for measuring the mass concentration and PM
concentration of PM2.5, it is subject to the influence of artifacts such as particle reaction and volatilization,

Naichao CHI

Satoshi
NAKAI

Effects of denuders for artifacts

and the particle composition at the time of collection and analysis is changed. In this study, mass

during measurements of PM2.5

concentrations, inorganic ions and organic component concentrations were studied depending on if aconcentrations

denuder was attached. The PM2.5 mass concentration increased due to the denuder, but the change incomponent concentration did not always match. Although the concentration of NH4+ decreased with thedenuder, Cl- and NO3- increased. The change of the organic component is slight.