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| 1 | Chemical characteristics of size-resolved aerosols in winter in Beijing显示文摘Size-resolved aerosols were continuously collected by a Nano Sampler for 13 days at an urban site in Beijing during winter 2012 to measure the chemical composition of ambient aerosol particles. Data collected by the Nano Sampler and an ACSM(Aerodyne Aerosol Chemical Speciation Monitor) were compared. Between the data sets,similar trends and strong correlations were observed,demonstrating the validity of the Nano Sampler. PM10 and PM2.5concentrations during the measurement were 150.5 ± 96.0 μg/m3(mean ± standard variation)and 106.9 ± 71.6 μg/m3,respectively. The PM2.5/PM10 ratio was 0.70 ± 0.10,indicating that PM2.5dominated PM10. The aerosol size distributions showed that three size bins of 0.5–1,1–2.5 and 2.5–10 μm contributed 21.8%,23.3% and 26.0% to the total mass concentration(TMC),respectively. OM(organic matter) and SIA(secondary ionic aerosol,mainly SO42-,NO3-and NH4+) were major components of PM2.5. Secondary compounds(SIA and secondary organic carbon) accounted for half of TMC(about 49.8%) in PM2.5,and suggested that secondary aerosols significantly contributed to the serious particulate matter pollution observed in winter. Coal burning,biomass combustion,vehicle emissions and SIA were found to be the main sources of PM2.5. Mass concentrations of water-soluble ions and undetected materials,as well as their fractions in TMC,strikingly increased with deteriorating particle pollution conditions,while OM and EC(elemental carbon) exhibited different variations,with mass concentrations slightly increasing but fractions in TMC decreasing. | Kang Sun Yu Qu Qiong Wu Tingting Han Jianwei Gu Jingjing Zhao Yele Sun Qi Jiang Ziqi Gao Min Hu Yuanhang Zhang Keding Lu Stephan Nordmann Yafang Cheng Li Hou Hui Ge Masami Furuuchi Mitsuhiko Hata Xingang Liu | 2014 | Journal of Environmental Sciences2014，26，8： | 9 |
| 2 | Characteristics of nanoparticles emitted from burning of biomass fuels显示文摘The characteristics of the particles of the smoke that is emitted from the burning of biomass fuels were experimentally investigated using a laboratory-scale tube furnace and different types of biomass fuels:rubber wood,whole wood pellets and rice husks.Emitted amounts of particles,particle-bound polycyclic aromatic hydrocarbons(PAHs)and water-soluble organic carbon(WSOC)are discussed relative to the size of the emitted particles,ranging to as small as nano-size(<70 nm),and to the rate of heating rate during combustion.differential thermal analysis(DTA)and thermogravimetric analysis(TG)techniques were used to examine the effect of heating rate and biomass type on combustion behaviors relative to the characteristics of particle emissions.In the present study,more than 30%of the smoke particles from the burning of biomass fuel had a mass that fell within a range of<100 nm.Particles smaller than 0.43μm contributed greatly to the total levels of toxic PAHs and WSOC.The properties of these particles were influenced by the fuel component,the combustion conditions,and the particle size.Although TG–DTA results indicated that the heating rate in a range of 10–20°C did not show a significant effect on the combustion properties,there was a slight increase in the decomposition temperature as heating rate was increased.The nano-size particles had the smallest fraction of particle mass and particle-bound PAHs,but nonetheless these particles registered the largest fraction of particle-bound WSOC. | Mitsuhiko Hata Jiraporn Chomanee Thunyapat Thongyen Linfa Bao Surajit Tekasakul Perapong Tekasakul Yoshio Otani Masami Furuuchi | 2014 | Journal of Environmental Sciences2014，26，9： | 5 |
| 3 | 东莞市大气颗粒物中多环芳香烃的特征与来源研究显示文摘以PAHs的年度污染综合评价为基础,考察了东莞市虎门镇和松山湖地区大气颗粒物中PAHs浓度及季节变化特征;再利用文献报道的PAHs毒性指标,评价了健康影响的危害性;同时采用特定PAHs比值法,解析了东莞市大气颗粒中PAHs主要污染来源。 | 白云鹤 范洪波 Furuuchi Masami Hata Mitsuhiko 吕斯濠 | 2010 | 东莞理工学院学报2010，17，5： | 2 |
| 4 | Particle-bound organic and elemental carbons for source identification of PM<0.1μm from biomass combustion显示文摘Atmospheric nanoparticles(PM<0.1μm)are a major cause of environmental problems and also affect health risk.To control and reduce these problems,sources identification of atmospheric particulates is necessary.Combustion of bituminous coal and biomass includ-ing rubber wood,palm kernel,palm fiber,rice stubble,rice straw,maize residue,sugarcane leaves and sugarcane bagasse,which are considered as sources of air quality problems in many countries,was performed.Emissions of particle-bound chemical components includ-ing organic carbon(OC),elemental carbon(EC),water-soluble ions(NH4^(+),Cl^(-),NO_(3)^(-),SO_(4)^(2-)),elements(Ca,K,Mg,Na)and heavy metals(Cd,Cr,Ni,Pb)were investigated.The results re-vealed that PM<0.1μm from all samples was dominated by the OC component(>50%)with minor contribution from EC(3%-12%).The higher fraction of carbonaceous components was found in the particulates with smaller sizes,and lignin content may relate to concentration of pyrolyzed organic carbon(PyOC)resulting in the differences of OC/EC values.PM emit-ted from burning palm fiber and rice stubble showed high values of OC/EC and also high PyOC.Non-carbonaceous components such as Cl^(-),Cr,Ca,Cd,Ni,Na and Mg may be useful as source indicators,but they did not show any correlation with the size of PM. | Hisam Samae Surajit Tekasakul Perapong Tekasakul Worradorn Phairuang Masami Furuuchi Surapa Hongtieab | 2022 | Journal of Environmental Sciences2022，34，3： | 2 |
| 5 | Physicochemical and toxicological characteristics of nanoparticles in aerosols in southern Thailand during recent haze episodes in lower southeast Asia显示文摘Transboundary haze from biomass burning is one of the most important air pollutions in Southeast Asia.The most recent serious haze episode occurred in 2015.Southern Thailand was affected by the haze during September to October when the particulate matter concentration hit a record high.We investigated physical and chemical characteristics of aerosols,including concentration and aerosol size distribution down to sub-micron sizes during haze episodes in 2013 and 2015 and,for reference,an insignificant haze period in 2017.The highest total suspended particulates and PM 10 levels in Hat Yai city were 340.1 and 322.5μg/m^3.The mass fractions were nanoparticles(<100 nm)3.1%-14.8%and fine particles(<1μm)54.6%-59.1%.Polycyclic aromatic hydrocarbon size distributions in haze periods peaked at 0.75μm and the concentrations are 2-30 times higher than the normal period.High molecular weight(4-6 ring)PAHs during the haze episode contribute to about 56.7%-88.0%for nanoparticles.The average values of benzo(a)pyrene toxic equivalency quotient were 3.34±2.54ng/m^3 in the 2015 haze period but only 0.89±0.17 ng/m^3 in 2017.It is clear that particles smaller than 1μm,were highly toxic.Nanoparticles contributed 19.4%-26.0%of total BaP-TEQ,whereas the mass fraction is 13.1%-14.8%.Thus the nanoparticles were more carcinogenic and can cause greater health effect than larger particles.The fraction of BaP-TEQ for nanoparticles during 2017 non-haze period was nearly the same,while the mass fraction was lower.This indicates that nanoparticles are the significant source of carcinogenic aerosols both during haze and non-haze periods. | Jiraporn Chomanee Kunchira Thongboon Surajit Tekasakul Masami Furuuchi Racha Dejchanchaiwong Perapong Tekasakul | 2020 | Journal of Environmental Sciences2020，32，8： | 2 |
| 6 | Degradation of semi-crystalline PPS bag-filter materials by NO and O 2 at high temperature显示文摘 | Winyu Tanthapanichakoon Masami Furuuchi Koh-hei Nitta Mitsuhiko Hata Shigehisa Endoh Yoshio Otani | 2006 | Polymer Degradation and Stability2006，，8： | 2 |
| 7 | Emissions of particulate matter and associated polycyclic aromatic hydrocarbons from agricultural diesel engine fueled with degummed,deacidified mixed crude palm oil blends显示文摘Mixed crude palm oil(MCPO),the mixture of palm fiber oil and palm kernel oil,has become of great interest as a renewable energy source.It can be easily extracted from whole dried palm fruits.In the present work,the degummed,deacidified MCPO was blended in petroleum diesel at portions of 30% and 40% by volume and then tested in agricultural diesel engines for long term usage.The particulates from the exhaust of the engines were collected every 500 hr using a four-stage cascade air sampler.The 50% cut-off aerodynamic diameters for the first three stages were 10,2.5 and 1μm,while the last stage collected all particles smaller than 1μm.Sixteen particle bounded polycyclic aromatic hydrocarbons(PAHs) were analyzed using a high performance liquid chromatography.The results indicated that the size distribution of particulate matter was in the accumulation mode and the pattern of total PAHs associated with fine-particles(< 1μm) showed a dominance of larger molecular weight PAHs(4-6 aromatic rings),especially pyrene.The mass median diameter,PM and total PAH concentrations decreased when increasing the palm oil content,but increased when the running hours of the engine were increased.In addition,Commercial petroleum diesel(PB0) gave the highest value of carcinogenic potency equivalent(BaP eq) for all particle size ranges.As the palm oil was increased,the BaP eq decreased gradually.Therefore the degummed-deacidified MCPO blends are recommended for diesel substitute. | Khamphe Phoungthong Surajit Tekasakul Perapong Tekasakul Gumpon Prateepchaikul Naret Jindapetch Masami Furuuchi Mitsuhiko Hata | 2013 | Journal of Environmental Sciences2013，25，4： | 2 |
| 8 | Increased expres- sion of -catenin predicta better prognosis in non~ small cell lung carcinomas显示文摘 | Hommura F Furuuchi K Yamazaki K | 2002 | Cancer2002，94，： | 1 |
| 9 | Somatic mutations of the APC gene in primary breast cancers显示文摘 | Furuuchi K Tada M Yamada H | 2000 | Am J Pathol2000，156，6： | 1 |
| 10 | Relationship between dys- lipidaemia and semen quality and serum sexhormone levels : an infertility study of 167 Japanese patients 显示文摘 | Hagiuda J Ishikawa H Furuuchi T | 2014 | Andrologia2014，46，2： | 1 |
| 11 | Stereospecific formal total synthesis of ecteinascidin 743显示文摘 | Zheng S Chan C Furuuchi T | 2006 | Angew Chem Int Ed2006，45，： | 1 |
| 12 | Stereospecific formal total synthesis of ecteinascidin 743显示文摘 | Zheng S Chan C Furuuchi T | 2006 | Angew Chem Int Ed Engl2006，45，11： | 1 |
| 13 | Influence of agricultural activities,forest fires and agro-industries on air quality in Thailand显示文摘Annual and monthly-based emission inventories in northern, central and north-eastern provinces in Thailand, where agriculture and related agro-industries are very intensive,were estimated to evaluate the contribution of agricultural activity, including crop residue burning, forest fires and related agro-industries on air quality monitored in corresponding provinces. The monthly-based emission inventories of air pollutants, or, particulate matter(PM), NOx and SO_2, for various agricultural crops were estimated based on information on the level of production of typical crops: rice, corn, sugarcane, cassava, soybeans and potatoes using emission factors and other parameters related to country-specific values taking into account crop type and the local residue burning period. The estimated monthly emission inventory was compared with air monitoring data obtained at monitoring stations operated by the Pollution Control Department, Thailand(PCD) for validating the estimated emission inventory. The agro-industry that has the greatest impact on the regions being evaluated, is the sugar processing industry, which uses sugarcane as a raw material and its residue as fuel for the boiler. The backward trajectory analysis of the air mass arriving at the PCD station was calculated to confirm this influence. For the provinces being evaluated which are located in the upper northern, lower northern and northeast in Thailand, agricultural activities and forest fires were shown to be closely correlated to the ambient PM concentration while their contribution to the production of gaseous pollutants is much less. | Worradorn Phairuang Mitsuhiko Hata Masami Furuuchi | 2017 | Journal of Environmental Sciences2017，29，2： | 1 |
| 14 | Nippon shokuhin kogyo显示文摘 | FURUUCHI Y | 1981 | Gakkaishi1981，28，： | 1 |
| 15 | Suppression of pancreatic cancer by the dominant negative mutant,N116Y 显示文摘 | Shichinohe T Senmaru N Furuuchi K | 1996 | J Surg Res1996，66，2： | 1 |
| 16 | Identification and quantification of short oligomeric proanthocyanidins and other polyphenols in boysenberry seeds and juice显示文摘 | Furuuchi R Yokoyama T Watanabe Y | 2011 | J Agric Food Chem2011，59，8： | 1 |
| 17 | Intermediate crack debonding of polymer cement mortar overlay-strengthened RC beam显示文摘 | ZHANG D UEDA T FURUUCHI H | 2011 | Journal of Materials in Civil Engineering2011，23，6： | 1 |
| 18 | Protective effect of structurally diverse grape procyanidin fractions against UV- induced cell damage and death显示文摘 | Furuuchi R Yokoyama T Watanabe Y | | 0，，08： | 1 |
| 19 | In- creased expression of catenin predicts better prognosis in non small cell lung carcinomas 显示文摘 | HOMMURA F FURUUCHI K YAMAZAKI K | 2002 | Cancer2002，94，3： | 1 |
| 20 | Somatic mutations of the APC gene in primary breast cancers显示文摘 | Furuuchi K Tada M Yamada H | 2000 | Am J Pathol2000，156，6： | 1 |
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