A5077030490- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Vehicle emissions and performance
- Indoor Air Quality and Microbial Exposure
- Air Quality Monitoring and Forecasting
- Atmospheric Ozone and Climate
- Maritime Transport Emissions and Efficiency
- Maritime Navigation and Safety
- Ultrasound and Hyperthermia Applications
- Water Quality Monitoring and Analysis
- Odor and Emission Control Technologies
- Toxic Organic Pollutants Impact
- Catalytic Processes in Materials Science
- Listeria monocytogenes in Food Safety
- Bacterial biofilms and quorum sensing
- Impact of Light on Environment and Health
- Advanced Chemical Sensor Technologies
- Biodiesel Production and Applications
- Antimicrobial agents and applications
- Ultrasound and Cavitation Phenomena
- Plant responses to elevated CO2
- Atmospheric aerosols and clouds
- Industrial Gas Emission Control
- Maritime Ports and Logistics
- Marine and coastal ecosystems
Osaka Prefectural Institute of Public Health
2001-2022
Institute of Public Health
1998-2020
Osaka City University
2013-2019
The association between nitrogen dioxide (NO2) and asthma has been investigated. However, conventional NO2 assays measure nitrous acid (HONO) as NO2. In this pilot epidemiological observational study, we assessed exposure to indoor HONO some air pollutants in pediatric patients examined possible symptoms. Indoor nitric oxide (NO), which are primarily generated by the combustion of certain substances, were significantly associated with attacks 2010. 2010, was closely correlated NO than...
Nitrogen dioxide (NO2) is an air pollutant discharged from combustion of human activities. Nitrous acid (HONO), measured as NO2, thought to impact respiratory function more than NO2. HONO and NO2 have equilibrium relationship, their reaction affected by climate conditions. This study was conducted discuss the extent contained in depending on level urbanization. Whether conditions that promote production enhanced investigated using time series analysis. Climate outdoor pollution data April...
Investigations of air pollutants were conducted aboard a research vessel anchoring for several hours at sites while cruising over Osaka Bay and the surrounding sea area in Japan. The concentrations nitrogen oxides (NOx) within sometimes exceeded 60 ppb (parts per billion by volume) showed clear diurnal variation pattern with broad peak daytime. A similarity was observed between patterns NOx concentration traffic on bay. Outside bay, constant about 13 ppb. Atmospheric monitoring from rooftop...
都市大気は,はっきりとにおわないまでも汚染による何らかの臭気を持つ.低温濃縮-嗅覚測定法を用いて大阪市およびその周辺地域において臭気濃度を測定し,あわせて種々の物質濃度測定を行い,臭気濃度との関係について論じた.26箇所の地点で合計92件測定した臭気濃度は最小0.3から最大5.6の範囲にあり,各地点毎の幾何平均では0.6から3.6の範囲にあった.一般に沿道で臭気濃度が高く,郊外や河川敷で低い傾向にあった.測定した臭気物質の中ではアセトアルデヒドが最も一般環境の臭気濃度への寄与が大きいと考えられた.
We developed an analytical method for the detection of nitric oxide (NO), nitrogen dioxides (NO2) and ozone (O3) simultaneously with high time resolution (1 s). The fast was applied observation at Fuji mountain roadside altitude 2300 m. successfully observed concentrations NO NO2 in emissions from each vehicle a roadside, O3 concentration decreased due to reaction NO. Relative amounts NOx primary emission ratios driven on road were estimated by resolution.
Abstract In Japan, the achievement rate of environmental standards for air pollution has been improving in recent years, but photochemical oxidants, including ozone, improvement are required. this study, we investigated trends ozone counter-measures United States and Europe from State Implementation Plan (SIP) National Air Pollution Control Program (NAPCP) examined whether there any points recommended Japan. The have different policies on control. States, states that do not meet...
Background: The relationship between NO 2 and asthma has been investigated; however, the WHO (2005) reported that it is unclear to what extent health effects observed in epidemiological studies are attributable itself or other primary secondary combustion-related products with which typically correlated.Objectives: To obtain a reasonable hypothesis for contradictions concerning relationships symptoms by this descriptive study.Methods: We examined indoor monitoring station , HONO (primary...