نتایج جستجو برای: air pollution concentration

تعداد نتایج: 611423  

Journal: :caspian journal of environmental sciences 2009
a. qayoom mir t. yazdani s. ahmad m. yunus

present transplant study was carried out across lucknow, the capital of utter pardesh using two medicinally important plants viz., ?catharanthus roseus l.? and ?ocimum sanctum l.? to assess whether certain ecophysiological responses (change in total flavonoids and total phenolics) in these two plants may serve as the biomarkers of auto exhaust pollution. samples were taken from five different s...

2009
Lindsay JL Forbes Minal D Patel Alicja R Rudnicka Derek G Cook Tony Bush John R Stedman Peter H Whincup David P Strachan HR Anderson

BACKGROUND Higher exposure to outdoor air pollution is associated with increased cardiopulmonary deaths, but there is limited evidence about the association between outdoor air pollution and diagnosed cardiovascular disease. Our study aimed to estimate the size of the association between long term exposure to outdoor air pollution and prevalent cardiovascular disease. METHODS We carried out a...

2011
Pengfei Zhang Guanghui Dong Baijun Sun Liwen Zhang Xi Chen Nannan Ma Fei Yu Huimin Guo Hui Huang Yungling Leo Lee Naijun Tang Jie Chen

BACKGROUND The relationship between ambient air pollution exposure and mortality of cardiovascular and cerebrovascular diseases in human is controversial, and there is little information about how exposures to ambient air pollution contribution to the mortality of cardiovascular and cerebrovascular diseases among Chinese. The aim of the present study was to examine whether exposure to ambient-a...

Journal: :Journal of environmental biology 2009
P C Joshi Abhishek Swami

Changes in the concentration of different photosynthetic pigments (Chlorophyll and carotenoids) were determined in the leaves of six tree species exposed to air pollution due to vehicular emissions. The six tree species, which are all economically important because of their being fruit bearers, used for timber fodder and as road side trees on the basis of their air pollution tolerance index. Th...

2015
Khaled ZoroufchiBenis Esmaeil Fatehifar Javad Ahmadi Alireza Rouhi

BACKGROUND Industrial air pollution is a growing challenge to humane health, especially in developing countries, where there is no systematic monitoring of air pollution. Given the importance of the availability of valid information on population exposure to air pollutants, it is important to design an optimal Air Quality Monitoring Network (AQMN) for assessing population exposure to air pollut...

Journal: :Risk analysis : an official publication of the Society for Risk Analysis 2005
Alain Le Tertre Joel Schwartz Giota Touloumi

In the framework of the APHEIS program (Air Pollution and Health: A European Information System), a health impact assessment of air pollution in 26 European cities was performed for particles of an aerodynamic diameter less than or equal to 10 microns (PM(10)). For short-term effects, it was based on overall estimates from the APHEA-2 project (Air Pollution and Health: A European Approach). The...

2009
Julian D. Marshall Michael Brauer Lawrence D. Frank

BACKGROUND The built environment may influence health in part through the promotion of physical activity and exposure to pollution. To date, no studies have explored interactions between neighborhood walkability and air pollution exposure. METHODS We estimated concentrations of nitric oxide (NO), a marker for direct vehicle emissions), and ozone (O(3)) and a neighborhood walkability score, fo...

2016
Liang Tang Qing-Yun Wang Zhi-Peng Cheng Bei Hu Jing-Di Liu Yu Hu

Exposure to air pollution has been linked to cardiovascular and respiratory disorders. However, the effect of air pollution on venous thrombotic disorders is uncertain. We performed a meta-analysis to assess the association between air pollution and venous thrombosis. PubMed, Embase, EBM Reviews, Healthstar, Global Health, Nursing Database, and Web of Science were searched for citations on air ...

2012
Ole Raaschou-Nielsen Zorana Jovanovic Andersen Steen Solvang Jensen Matthias Ketzel Mette Sørensen Johnni Hansen Steffen Loft Anne Tjønneland Kim Overvad

BACKGROUND Traffic air pollution has been linked to cardiovascular mortality, which might be due to co-exposure to road traffic noise. Further, personal and lifestyle characteristics might modify any association. METHODS We followed up 52 061 participants in a Danish cohort for mortality in the nationwide Register of Causes of Death, from enrollment in 1993-1997 through 2009, and traced their...

2016
Ayako Yoshino Akinori Takami Kei Sato Atsushi Shimizu Naoki Kaneyasu Shiro Hatakeyama Keiichiro Hara Masahiko Hayashi Shinji Wakamatsu

To understand the influence of trans-boundary air pollution on the air quality of Fukuoka, the mass concentration and chemical composition of fine particulate matter (PM) were observed at urban (Fukuoka) and rural (Fukue Island) sites in the northern Kyushu area in Japan. Chemical composition was measured using an aerosol mass spectrometer. Organic aerosol (OA) data were analyzed by the positiv...

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