نتایج جستجو برای: pollutant standard index

تعداد نتایج: 903883  

Danial Dabiri Mohammad Dashti Marvili

Drought is a natural hazard that has significant impact on economic, agricultural, environmental, and social aspects. In the present study details analysis of rainfall data has been carried out for the years 1981-2011. Standard precipitation index (SPI) has been used to evaluate the precipitation deficit in the Karun watershed of Iran. The results indicated that 1981-82,82-83,83-84,84-85,88-89,...

Danial Dabiri Mohammad Dashti Marvili

Drought is a natural hazard that has significant impact on economic, agricultural, environmental, and social aspects. In the present study details analysis of rainfall data has been carried out for the years 1981-2011. Standard precipitation index (SPI) has been used to evaluate the precipitation deficit in the Karun watershed of Iran. The results indicated that 1981-82,82-83,83-84,84-85,88-89,...

2012
P. Goyal

Continuous development and increase of population in the urban areas, a series of problems related to environment such as deforestation, release of toxic materials, solid waste disposals, air pollution and many more, have attracted attention much greater than ever before. The problem of air pollution in cities has become so severe that there is a need for timely information about changes in the...

Journal: :Environment international 2016
Eric Coker Silvia Liverani Jo Kay Ghosh Michael Jerrett Bernardo Beckerman Arthur Li Beate Ritz John Molitor

Research indicates that multiple outdoor air pollutants and adverse neighborhood conditions are spatially correlated. Yet health risks associated with concurrent exposure to air pollution mixtures and clustered neighborhood factors remain underexplored. Statistical models to assess the health effects from pollutant mixtures remain limited, due to problems of collinearity between pollutants and ...

Journal: :Occupational and environmental medicine 2007
M S O'Neill A Veves J A Sarnat A Zanobetti D R Gold P A Economides E S Horton J Schwartz

BACKGROUND Particulate air pollution has been associated with several adverse cardiovascular health outcomes, and people with diabetes may be especially vulnerable. One potential pathway is inflammation and endothelial dysfunction-processes in which cell adhesion molecules and inflammatory markers play important roles. AIM To examine whether plasma levels of soluble intercellular adhesion mol...

Journal: :Journal of risk and financial management 2021

This study examines the reaction of Standard and Poor’s Regional Bank Index (SPRB) to U.S. equity market fear index (i.e., Chicago Board Trade Volatility [VIX]). The VIX is designed perform as a leading indicator volatility in markets. However, practitioners observe many periods divergence between S&P 500. Our paper daily data for period 2009 through 2019. We show that once effects consumer...

Journal: :محیط زیست طبیعی 0
عاطفه اکبری دانش آموخته کارشناسی ارشد محیط زیست دانشکده منابع طبیعی و کویرشناسی دانشگاه یزد حمیدرضا عظیم زاده دانشیار دانشگاه یزد، دانشکده منابع طبیعی و کویرشناسی، پژوهشکده مناطق خشک و بیابانی

environmental pollution by various pollutants is one of the most important problems of this century. at least 20 elements, including chromium have been classified in toxic metals group, that half of them are released in the environment in excessive amounts of standards. chromium is a toxic pollutant that is widely spread in the environment and exists in cement and concrete. the aim of this stud...

Journal: :Plant physiology 2012
Amy M Betzelberger Craig R Yendrek Jindong Sun Courtney P Leisner Randall L Nelson Donald R Ort Elizabeth A Ainsworth

Current background ozone (O(3)) concentrations over the northern hemisphere's midlatitudes are high enough to damage crops and are projected to increase. Soybean (Glycine max) is particularly sensitive to O(3); therefore, establishing an O(3) exposure threshold for damage is critical to understanding the current and future impact of this pollutant. This study aims to determine the exposure resp...

جنیدی جعفری, احمد , گل باز, سمیه ,

  Background: Air pollution is one of the most important problems in industrial cities and has affect on the lives of all people. In order to set the control programs, air pollution monitoring and determination of air quality are necessary. The aim of this study was to compare health quality of air in Tehran and Isfahan cities.   Methods: This was a descriptive–analytic study . The moment conce...

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