Zobrazeno 1 - 10
of 482
pro vyhledávání: '"Kazuichi Hayakawa"'
Autor:
Hiroshi Odajima, Hiroshi Matsuzaki, Yuko Akamine, Kaoru Kojima, Akiko Sugiyama, Yoko Murakami, Ayako Yoshino, Akinori Takami, Kazuichi Hayakawa, Akinori Hara, Hiroyuki Nakamura
Publikováno v:
Applied Sciences, Vol 14, Iss 17, p 8034 (2024)
(1) Background: To date, little research has epidemiologically examined whether the concentration of particulate matter (PM) 2.5 and its ionic components is related to the prevalence of skin symptom exacerbations. Therefore, this study aimed to clari
Externí odkaz:
https://doaj.org/article/1f4540403c08438aaa476753d634a941
Autor:
Kazuichi Hayakawa, Pham Kim-Oanh, Akinori Takami, Hiroshi Odajima, Edward G. Nagato, Akinori Hara, Hiroyuki Nakamura
Publikováno v:
Heliyon, Vol 10, Iss 5, Pp e27320- (2024)
This study collected samples of particulate matter that are 2.5 μm or less in diameter (PM2.5) in Kanazawa, Japan, and Noto Peninsula located 100 km north on the windward side of the westerlies from the Asian continent and characterized the extent o
Externí odkaz:
https://doaj.org/article/fb01c1d3d2604400b2e05e590ac4fb54
Autor:
Kazuichi Hayakawa
Publikováno v:
Atmosphere, Vol 15, Iss 6, p 634 (2024)
Estimating the source contribution to polycyclic aromatic hydrocarbons (PAHs) and nitropolycyclic aromatic hydrocarbons (NPAHs) in the atmosphere is necessary for developing effective disease control and pollution control measures. The NPAH-PAH combi
Externí odkaz:
https://doaj.org/article/e7a9a31e1fd14e1296455f3f02d5a801
Autor:
Nobuo Suzuki, Masato Honda, Masayuki Sato, Shuhei Yoshitake, Kimi Kawabe, Yoshiaki Tabuchi, Toshiki Omote, Toshio Sekiguchi, Yukihiro Furusawa, Akira Toriba, Ning Tang, Yohei Shimasaki, Edward G. Nagato, Lulu Zhang, Ajai K. Srivastav, Thumronk Amornsakun, Yoichiro Kitani, Hajime Matsubara, Takashi Yazawa, Jun Hirayama, Atsuhiko Hattori, Yuji Oshima, Kazuichi Hayakawa
Publikováno v:
Ecotoxicology and Environmental Safety, Vol 234, Iss , Pp 113401- (2022)
To study the toxicity of 3-hydroxybenzo[c]phenanthrene (3-OHBcP), a metabolite of benzo[c]phenanthrene (BcP), first we compared it with its parent compound, BcP, using an in ovo-nanoinjection method in Japanese medaka. Second, we examined the influen
Externí odkaz:
https://doaj.org/article/764474b9c70f4d4c9b905969cf4fca06
Publikováno v:
Atmosphere, Vol 14, Iss 4, p 646 (2023)
Fifty-one samples were collected seasonally to estimate the amounts of total suspended particulate (TSP) in Sapporo, Japan, from 1990 to 2002. The atmospheric concentration of combustion-derived particulate (Pc) was calculated based on the NP method
Externí odkaz:
https://doaj.org/article/9479859d513a4b81a92b6ad59b4dfb62
Autor:
Akinori Hara, Hiroshi Odajima, Hiroshi Matsuzaki, Masaki Fujimura, Tomoko Toma, Taizo Wada, Noriyuki Ohkura, Jiaye Zhao, Kim-Oanh Pham, Keita Suzuki, Hiromasa Tsujiguchi, Akinori Takami, Kazuichi Hayakawa, Hiroyuki Nakamura
Publikováno v:
Applied Sciences, Vol 12, Iss 24, p 12505 (2022)
Ambient polycyclic aromatic hydrocarbons’ (PAHs) specific components are likely involved in respiratory disease development and exacerbation in children and adults. Airborne PAH exposure’s effects on cough symptoms in children and adults with chr
Externí odkaz:
https://doaj.org/article/b4d0c792f7da4ee5a6b52578c0a96011
Autor:
Jiaye Zhao, Akinori Hara, Kazuichi Hayakawa, Kim-Oanh Pham, Keita Suzuki, Hiromasa Tsujiguchi, Hiroshi Matsuzaki, Hiroshi Odajima, Akinori Takami, Hiroyuki Nakamura
Publikováno v:
Applied Sciences, Vol 12, Iss 24, p 12544 (2022)
The relationship between exposure to polycyclic aromatic hydrocarbons and nasal symptoms currently remains unclear. Therefore, we herein examine this relationship in 51 adults living in Ishikawa prefecture, Japan, and conducted a 2 month follow-up su
Externí odkaz:
https://doaj.org/article/425419b37c454dc6b4868c5e4ad5deff
Autor:
Yuliya Koudryashova, Tatiana Chizhova, Mutsuo Inoue, Kazuichi Hayakawa, Seiya Nagao, Evgeniya Marina, Rodrigo Mundo
Publikováno v:
Journal of Marine Science and Engineering, Vol 10, Iss 12, p 2015 (2022)
A vertical pattern of fractionated polycyclic aromatic hydrocarbons (PAH) was studied in the Japan Basin in the Sea of Japan. The highest PAH concentration was found in the mesopelagic realm, possibly resulting from deep convection and/or subduction
Externí odkaz:
https://doaj.org/article/ff476481c3df4928b0a8eaa63c3a2bf4
Autor:
Ayako Yoshino, Akinori Takami, Atsushi Shimizu, Kei Sato, Kazuichi Hayakawa, Ning Tang, Kim-Oanh Pham, Akinori Hara, Hiroyuki Nakamura, Hiroshi Odajima
Publikováno v:
Applied Sciences, Vol 12, Iss 22, p 11400 (2022)
Focusing on the components of fine particulate matter, i.e., PM2.5, we have analyzed the factors that led to the high concentrations of each chemical component in PM2.5 during our observations in Fukuoka, Japan in spring 2020. The backward trajectory
Externí odkaz:
https://doaj.org/article/49b38d98a5a54cde87fbfe059068b7fb
Autor:
Hiroshi Odajima, Hiroshi Matsuzaki, Yuko Akamine, Kaoru Kojima, Yoko Murakami, Ayako Yoshino, Akinori Takami, Kazuichi Hayakawa, Akinori Hara, Hiroyuki Nakamura
Publikováno v:
Applied Sciences, Vol 12, Iss 21, p 11185 (2022)
Mask wearing can protect health care workers. However, its efficacy in avoiding the health effects of air pollution is not well studied. Recently, we evaluated the relationship between air pollution and health status or peak expiratory flow rate (PEF
Externí odkaz:
https://doaj.org/article/6169e95d621a41f5b33091a84c8a09f3