نتایج جستجو برای: air pollution episode

تعداد نتایج: 279356  

Journal: :Neurocomputing 2013
Kit Yan Chan Le Jian

Artificial neural network (ANN) is a commonly used approach to estimate or forecast air pollution levels, which are usually assessed by the concentrations of air contaminants such as nitrogen dioxide, sulfur dioxide, carbon monoxide, ozone, and suspended particulate matters (PMs) in the atmosphere of the concerned areas. Even through ANN can accurately estimate air pollution levels they are num...

Journal: :ارتقای ایمنی و پیشگیری از مصدومیتها 0
محمد رضا مسعودی نژاد mohamadreza massoudinejad دانشگاه علوم پزشکی شهید بهشتیسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) الهام نیک نهاد elham niknahad دانشگاه آزاد اسلامی واحد علوم تحقیقاتسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch)

background and objective: bioaerosols are particles of microbes, viruses and derivatives; they exist in a wide variety of shapes and sizes and can be measured with different air samplers. the purpose of this study is the determination of bacterial aerosol in the air of hospitals and the determination of contaminated areas for disinfection proceedings by hospital health care teams, by selecting ...

2016
Marko Tainio Audrey J. de Nazelle Thomas Götschi Sonja Kahlmeier David Rojas-Rueda Mark J. Nieuwenhuijsen Thiago Hérick de Sá Paul Kelly James Woodcock

Active travel (cycling, walking) is beneficial for the health due to increased physical activity (PA). However, active travel may increase the intake of air pollution, leading to negative health consequences. We examined the risk-benefit balance between active travel related PA and exposure to air pollution across a range of air pollution and PA scenarios. The health effects of active travel an...

Journal: :The Tohoku journal of experimental medicine 2014
Tsuyoshi Nishinakagawa Hideaki Senjyu Takako Tanaka Masaharu Asai Kenji Kotaki Yudai Yano Naomi Miyamoto Yorihide Yanagita Ryo Kozu Mitsuru Tabusadani Sumihisa Honda

Air pollution due to industrial waste and tobacco smoke is detrimental to pulmonary function. However, the combined effects of air pollution and smoking on pulmonary function have not been investigated. We examined the combined effect of air pollution of 40 years ago and concurrent smoking on the pulmonary function of officially acknowledged female victims in Japan, because females are more sus...

2013
Taraneh Yazdanparast Seyed Mohammad Seyedmehdi Soheila Khalilzadeh Sousan Salehpour Mohammad Reza Boloursaz Nooshin Baghaie Maryam Hassanzad Ali Akbar Velayati

BACKGROUND Knowledge and practice about air pollution are essential subjects in special groups such as cardio-pulmonary patients. For children with air pollution-related diseases, knowledge and attitude of parents play a determining role in this respect. Since providing a coherent curriculum needs evidence-based information, this survey was conducted to assess the knowledge and practice of asth...

2003
Allen Blackman Michael Batz David Evans

Ciudad Juárez, Chihuahua, is home to the U.S.–Mexico border’s largest maquiladora labor force, and also its worst air pollution. We marshal two types of evidence to examine the link between maquiladoras and air pollution in Ciudad Juárez, and in its sister city, El Paso, Texas. First, we use a publicly available sector-level emissions inventory for Ciudad Juárez to determine the importance of a...

2005
L. Makra P. Brimblecombe

Several comprehensive publications have been issued recently on the environmental pollution of past times (e.g. Tylecote, 1976; Nriagu, 1983a; Brimblecombe, 1987a; Goldstein, 1988; Healy, 1988; Brimblecombe and Pfister, 1990; Hughes, 1993; Markham, 1994; Brimblecombe, 1995; Karatzas, 2000, 2001; McNeill, 2001; Mészáros, 2001). The aim of this study is to give an overview of information on the s...

Environmental pollution consists of different types of pollutants in air, soil, and water. Due to the fact that plants can respond to environmental pollution, they can be used as bio-indicators for environmental monitoring. Air pollution in areas with oil and gas refineries nearby is an important problem. This study aims to survey the effects of gas refinery air pollutants on Conocarpus erectus...

2006
Isobel J. Simpson Tao Wang Hai Guo Y. H. Kwok Frank Flocke Elliot Atlas Simone Meinardi F. Sherwood Rowland Donald R. Blake

Mixing ratios of seven C1–C5 alkyl nitrates (RONO2) were measured during a 16-month study (August 2001–December 2002) at Tai O, a coastal site 30 km west of central Hong Kong in the Pearl River Delta, the fastest-growing industrial region in the world. The C3–C4 (rather than C1–C2) RONO2 were most abundant throughout the study, showing the importance of photochemical (rather than marine) RONO2 ...

Journal: :iranian journal of environmental sciences 0
seyyed mansour seyyednejad professor of plant physiology, department of biology, faculty of science, shahid chamran university of ahvaz, ahvaz, iran hossein motamedi professor of microbiololgy, department of biology, faculty of science, shahid chamran university of ahvaz, ahvaz, iran parinaz lordifard msc. student, department of biology, faculty of science, shahid chamran university of ahvaz, ahvaz, iran

environmental pollution consists of different types of pollutants in air, soil, and water. due to the fact that plants can respond to environmental pollution, they can be used as bio-indicators for environmental monitoring. air pollution in areas with oil and gas refineries nearby is an important problem. this study aims to survey the effects of gas refinery air pollutants on conocarpus erectus...

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