Air pollution is one of the most important problems in the world’s major cities in the last century because it endangers human health and the environment. One of the indicators of air pollution is nitrogen dioxide, which is continuously measured by satellite from space and via ground-based instruments. In this paper, the data for nitrogen dioxide was measured by OMI over Tehran. Wind, surface t...

introduction sulfur dioxide has been widely studied among the human- made pollutants. air pollution is a major environmental risk to health. the less air pollution, the better the cardiovascular and respiratory health of the population will be, both long- and short-term. several studies have demonstrated relation between on short and long term effects exposure to air pollutants with human healt...

The experiment was conducted to determine the effect of nirogen levels and irrigation intervals applied with drip system on cotton yield, evapotranspiration water use efficiency in East Mediterranean Transitional Zone Agricultural Research Institute Located Kahramanmaras, Turkey during 2012 2013. In experiment, 3 different nitrogen (N0:0, N15:150, N30: 300 kg ha-1) 2 (I5: 5 I10:10 days) were in...

hydrous manganese dioxide nanoclusters are prepared by the oxidation of manganese (ii) ions with ammonium persulfate and used as a new sorbent for ag+ ion removal from aqueous medium. the synthesized compound is characterized using scanning electron microscopy, dynamic light scattering, energy dispersive analysis of x-rays, x-ray diffraction and bet surface measurements. scanning electron micro...

reaction of compound 1 with thiobenzarnide or substituted selenobenzamides afforded substituted pyrrolobenzothiazole or selenazoles (2) respectively. selenium dioxide oxidation of the semicarbazone 4 with selenium dioxide gave 6- benzenesulfonyl- 4,5-dihydro-pynolo [3,2-el benzoselenadiazole (5).

Carbon dioxide capture is a key issue in climate change mitigation. For decades the removal of carbon dioxide has been an essential step in many industrial processing operations such as the synthesis of ammonia, natural gas purification, and oil refining. In this study, a rotating packed bed has been designed for absorption of carbon dioxide from an air stream. The rotating packed bed is a comp...

sulfur dioxide has two important sources in the atmosphere and this is why most of scientists believe in a geographic split in the globe. power plants, major emitter of so2, are located in north hemisphere such as in russia, china, canada and the usa. in south hemisphere, phytoplankton produces a massive amount of dimethyl sulfide (dms) and dimethyl disulfide (dmds). then these types of reduced...

conclusions proximity to road traffic might be a risk factor for ra as there are suspected effects associated with no2 and so2. overall, the available evidence is too preliminary and scarce to draw firm conclusions. however, the results indicate the feasibility of further studies elucidating on the relationship between air pollution and ra. results four relevant papers were included in a qualit...