نتایج جستجو برای: Co-pollutants

تعداد نتایج: 356880  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده منابع طبیعی 1392

nowadays, air pollution is a global problem that has had significant growth by technology development, population growth andindustrial development. industrial development brought natural resources deterioration, more manufacturing products, and more environmental pollutants. if pollutant won’t be controlled, human-being and wildlife will face the critical risks. significant release and critical...

Journal: :اقتصاد پولی مالی 0
زهرا نصراللهی مرضیه غفاری گولک

the environmental kuznets curve (ekc) hypothesis posits an inverted u relationship between environmental pollutants and per capita income. recent researches have examined this hypothesis for different pollutants in different countries. however, so far a few number of ekc studies have been carried out in iran. this might be due to the lack of reliable environmental data in this field. the aim of...

Journal: :فیزیک زمین و فضا 0
زهرا شرعی پور مؤسسه ژئوفیزیک دانشگاه تهران، کارشناس هواشناسی

in this paper, seasonal and diurnal variation of pollutants and the relation between meteorological parameters and the amount of pollutant concentrations is investigated. the data used were obtained from the air quality department of the municipality and from the synoptic station of the institute of geophysics. in this survey, the data used are from 2004 to 2007. the result of survey for season...

2016
BASANT SHUBHANKAR BALRAM AMBADE

This paper throws light on household cooking related exposures and level of indoor air pollutants (particulate matter and gaseous pollutants CO, CO2, SO2, NO, NO2) in different exposure area from the different types of cooking fuels used. Still the prevalence of biomass fuels exists in Indian households, combustion of which releases higher levels of solid and gaseous pollutants during the cooki...

Introduction and purpose: Carbon monoxide (CO) and particulate matter (PM2.5) are among the most important environmental pollutants arising from different sources, such as vehicle exhaust, industrial process, and secondary pollutants. These pollutants lead to increased pulmonary vascular diseases and decreased vision. Moreover, they damage the plants, animals, and objects. The&n...

Journal: :international journal of occupational hygiene 0
nabiollah mansouri graduate school of environment and energy, science and research branch, islamic azad university, ponak, hesarak, tehran, iran. maryam khairi graduate school of environment and energy, science and research branch, islamic azad university, ponak, hesarak, tehran, iran.

this study was focused on measuring air pollutants emission from factories producing the asphalt related products in delijan industrial estate, which is the main center of asphalt related products in iran. emissions of four factories were analyzed for air pollutants using a stack analyzer, testo 360, testo co., and germany. the average concentration of all measured stacks for pm, thc, co, nox, ...

Journal: :journal of paramedical sciences 0
amir kavousi department of basic sciences,faculty of health,safety and environment,shahid beheshti university of medical sciences, tehran reyhaneh sefidkar paramedical faculty, shahid beheshti university of medical sceinces, tehran hamid alavimajd department of biostatistics, para-medical faculty, shahid beheshti university of medical sceinces,tehran yousef rashidi tehran air quality control agency, tehran zeinab abolfazli khonbi english language department, faculty of medicine,kashan university of medical sciences, kashan,isfahan

nowadays, air pollution in cities with regard to its harmful outcomes has been turned into one of the serious challenges in urban management. pollutants as carbon monoxide, sulfur dioxide, and the aerosols that are known to be among the most important factors related to heart, vascular, and lung disease, have underlined public welfare and health, and the organizations concerned with community h...

2006
Margaret C. Bell

the main cause for concern about global warming and climate change. Primary air pollutants include carbon monoxide (CO), carbon dioxide, water vapour and un-burnt fuel, hydrocarbons, including volatile and non-volatile organic compounds, oxides of nitrogen, sulphur dioxide (traces), and particulate matter. Pollutants, such as small particles arise not only from the exhaust but also from the roa...

Journal: :Occupational and environmental medicine 2000
E Zagury Y Le Moullec I Momas

OBJECTIVES To study the exposure of Parisian taxi drivers to automobile air pollutants during their professional activity. METHODS A cross sectional study was carried out from 27 January to 27 March 1997, with measurements performed in the vehicles of 29 randomly selected drivers. Carbon monoxide (CO) content was measured over an 8 hour period by a CO portable monitor. The fine suspended part...

2017
Yang Song Xiaoming Wan Shuoxin Bai Dong Guo Ci Ren Yu Zeng Yirui Li Xuewen Li

BACKGROUND The elevation and dissipation of pollutants after the ignition of fireworks in different functional areas of a valley city were investigated. METHODS The Air Quality Index (AQI) as well as inter-day and intra-day concentrations of various air pollutants (PM10, PM2.5, SO2, NO2, CO, O3) were measured during two episodes that took place during Chinese New Year festivities. RESULTS F...

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