نتایج جستجو برای: carbon dioxide and ozone

تعداد نتایج: 16899507  

2007
T. Mueller

tor several decades, electricity production and use have been a growing source of concern among individuals and groups monitoring the quality of the environment. Emissions from coalfired power plants, impacts of hydroelectric development, and risks associated with nuclear energy use have been particular targets for political action, dating to the early days of the environmental movement in the ...

Journal: :Equipment, Technologies, Materials 2023

It has been known for more than 100 years that carbon dioxide absorbs photons in the ultraviolet and infrared ranges of radiation, creating a greenhouse effect. However, so far no one answered question: what is photon? photon corpuscular wave properties, certain pressure. An interesting experiment was carried out when dissected using Wilson chamber it left traces opposite sign. The correct conc...

1997
Fitzgerald L. Booker Chantal D. Reid Sabine Brunschön-Harti Edwin L. Fiscus Joseph E. Miller

sampling dates. The inhibitory effects of elevated O 3 on photorespiration-related parameters were generally The effects of elevated carbon dioxide (CO 2 ) and ozone commensurate with the O 3 -induced decline in A. The (O 3 ) on soybean [Glycine max (L.) Merr.] photosynthesis results suggest that elevated CO 2 could promote proand photorespiration-related parameters were deterductivity both thr...

زاهدی, مرتضی, صالح, مهران, عشقی زاده, حمید رضا,

This experiment was conducted in a greenhouse at Isfahan University of Technology, Isfahan, Iran in 2014 to evaluate 20 wheat cultivars (Navid, Pishtaz, Karaj, Kavir, Tajan, Karun, sholeh, Bahar, Khoshki 11, Gasparood, Sepahan, Sorkh tokhm, Chamran, Ghods, Shariar, Omid, Sistan, Alamut, Marvdasht and Shiraz) under two carbon dioxide concentrations (the ambient 360 and the enriched 700 µM) and t...

2017
Robert Cichowicz Grzegorz Wielgosiński Wojciech Fetter

Seasonal variation of air pollution is associated with variety of seasons and specificity of particular months which form the so-called summer and winter season also known as the "heating" season. The occurrence of higher values of air pollution in different months of a year is associated with the type of climate, and accordingly with different atmospheric conditions in particular months, chang...

Journal: :Environmental pollution 1995
W J Manning A V Tiedemann

Continued world population growth results in increased emission of gases from agriculture, combustion of fossil fuels, and industrial processes. This causes changes in the chemical composition of the atmosphere. Evidence is emerging that increased solar ultraviolet-B (UV-B) radiation is reaching the earth's atmosphere, due to stratospheric ozone depletion. Carbon dioxide (CO(2)), ozone (O(3)) a...

2015
J. Viallon S. Lee P. Moussay K. Tworek M. Petersen R. I. Wielgosz

Ozone plays a crucial role in tropospheric chemistry, is the third largest contributor to greenhouse radiative forcing after carbon dioxide and methane and also a toxic air pollutant affecting human health and agriculture. Long-term measurements of tropospheric ozone have been performed globally for more than 30 years with UV photometers, all relying on the absorption of ozone at the 253.65 nm ...

Journal: :Respiratory care 2008
Gregory B Diette Meredith C McCormack Nadia N Hansel Patrick N Breysse Elizabeth C Matsui

Management of asthma requires attention to environmental exposures both indoors and outdoors. Americans spend most of their time indoors, where they have a greater ability to modify their environment. The indoor environment contains both pollutants (eg, particulate matter, nitrogen dioxide, secondhand smoke, and ozone) and allergens from furred pets, dust mites, cockroaches, rodents, and molds....

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