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30 articles for “ozone”
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Research ArticleOpen accessEvery word in the titleRecent Trends in Ozone and Particle Concentrations in the Sydney (Australia) AirshedMerched Azzi, Hiep DucAn overview is presented of changes in ground level ozone and atmospheric fine particles determined using ambient monitoring data collected at selected locations in Sydney, Australia. After removing seasonally, auto-regressive and moving average dependence from the selected time series, the trend of a selected series was modelled using the fractional long-term dependent component. The selected technique was able to detect … …American Journal of Environmental Sciences, Vol. 4, Issue 5 · 31 Oct 2008 · 6,682 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDecline of Betula ermanii with Special Reference to Ozone Concentration at Mt. Mae-Shirane, Oku-Nikko, JapanY. W. Feng, N. Ohta, H. ShimizuDuring June to October 2000 and 2001 we measured the height, Diameter at Breast Height (DBH) and stand density of Betula ermanii trees at Mt. Mae-Shirane, Japan and the ozone concentration there to explore the relationship between ozone concentration and the decline of B. ermanii trees on the mountain. Height, DBH and stem volume were lower on the southeast-facing slope … …American Journal of Applied Sciences, Vol. 2, Issue 3 · 31 Mar 2005 · 7,055 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleMeasurement of Ground Level Ozone at Different LocationsYasmen A. Mustafa, Sinan J. MohammedProblem statement: Ground level ozone is the most important index substance of photochemical smog. Photochemical smog is now observed in many urban and industrial centers around the world and it has become a common phenomenon in many large cities. Ozone is a most harmful pollutant for humans, in addition it plays an important role in damaging vegetation and materials. Therefore … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 13 Jun 2012 · 7,402 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTropospheric Ozone Effects on the Productivity of Some Crops in Central Saudi ArabiaAkram Ali, Ahmad Alfarhan, Ernest Robinson et al.This study was conducted to evaluate damaging degree of ambient ozone (O3) levels in certain economically important crops in typical areas of the central KSA (Riyadh). Daily mean ozone concentrations were recorded by portable O3 analyzers in the center of Batha, Naseem, Oleya and Industrial City, from the beginning of October, 2006 to middle of June, 2007. Maseef area was … …American Journal of Environmental Sciences, Vol. 4, Issue 6 · 31 Dec 2008 · 7,247 accessesView PDFCite
Research ArticleOpen accessIn the keywordsINVESTIGATIONS ON THE PERFORMANCE OF VAPOUR COMPRESSION SYSTEM RETROFITTED WITH ZEOTROPIC REFRIGERANT R404AA. Lovelin Jerald, D. SenthilKumaranThe environmental impacts like global warming and ozone depletion has become a challenge to the refrigeration and air conditioning industry. Chloro Fluoro Carbons (CFCs) and Hydro Flouro Carbons (HCFCs) are referred to as an Ozone Depleting Substances (ODS) because once these gases are released into the environment and reach the stratosphere, depletes the ozone layer. This research paper aims to … …American Journal of Environmental Sciences, Vol. 10, Issue 1 · 11 Feb 2014 · 7,626 accessesView PDFCite
Research ArticleOpen accessIn the keywordsComparative Assessment of Ambient Air Quality in Rabia Area for Years 2001 and 2004 in the State of KuwaitBader N. Al-Azmi, V. Nassehi, A. R. KhanThe hourly air pollutants concentrations were measured continuously by fixed ambient air stations located over the polyclinics in Rabia area in Capital Governorate in the State of Kuwait. The focus of this investigation is to determine the pollution levels of SO2, NO2 and O3 in year 2001 and 2004 to assess the pollution trends. The recorded data are used in … …American Journal of Environmental Sciences, Vol. 4, Issue 1 · 29 Feb 2008 · 7,104 accessesView PDFCite
Research ArticleOpen accessIn the keywordsReview of Photochemical Smog Pollution in Jakarta Metropolitan, IndonesiaDollaris R. Suhadi, M. Awang, M. N. Hassan et al.An analysis of photochemical smog pollution in Jakarta was attempted using data from the existing air quality monitoring stations. Ground-level ozone potential is high in Jakarta due to the high traffic emissions of ozone precursors and the favorable surface meteorological conditions. Despite the frequent missing data during the 1996-1999 monitoring, which resulted in lower ozone values, ozone episodes were significantly … …American Journal of Environmental Sciences, Vol. 1, Issue 2 · 30 Jun 2005 · 7,247 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEffect of Ozonated Water on the Bond Strength of FL Bond II Adhesive to EnamelFernanda Rafaela Ribeiro, Caterine Renata Passaglia, Julio Katuhide Ueda et al.The aim of this study was to investigate the potential of ozonated water as an oxidative cleaning solution to improve the bond strength of a bioactive adhesive system to enamel without prior etching. Forty bovine anterior tooth crowns were used and divided into four groups according to the cleaning solution and storage time: AD24 h (cleaning with distilled water, 24 … …Current Research in Dentistry, Vol. 16, Issue 1 · 7 Jul 2025 · 5,787 accessesView PDFCite
Research ArticleOpen accessIn the keywordsBond Strength of Bioactive vs. Conventional Resin Composites on Dentin Cleaned with Ozonated Water: An In Vitro StudyFernanda Rafaela Ribeiro, Anna Caroliny Detogni, Julio Katuhide Ueda et al.This study aimed to compare the micro tensile bond strength (μTBS) of bioactive and conventional resin composite to human dentin after the use of ozonated water (AO) as a cavity cleaning solution. A total of 32healthy human third molars were randomly assigned to four groups (n = 8)based on the type of composite and dentin cleaning. The first group received … …Current Research in Dentistry, Vol. 16, Issue 1 · 9 Jun 2025 · 6,312 accessesView PDFCite
EditorialOpen accessIn the abstractAmerican Journal of Agricultural and Biological Sciences: Ten Years LaterMarco LandiTen years after the first issue, the American Journal of Agricultural and Biological Sciences (AJABS) continued to flourish, a clear indication of the validity of Science Publications project. Many scientists have contributed in this first decade to AJABS editorial life and to date more than 500 papers have been published with an encouraging rate of 0.73 cites per doc. Furthermore, … …American Journal of Agricultural and Biological Sciences, Vol. 11, Issue 1 · 5 Mar 2016 · 7,893 accessesView PDFCite