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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
451

Methods for the monitoring of peroxy radicals and measurement of NO←2 photolysis in the atmosphere

Gladstone, Robert Vernon January 1995 (has links)
No description available.
452

Effects of the self-cleaning oven on residential air quality

Hecht, Janet M. January 2011 (has links)
Digitized by Kansas Correctional Industries
453

Three essays on pollution regulations and international trade

Umanskaya, Victoria I. January 2006 (has links)
Thesis (Ph. D.)--University of Wyoming, 2006. / Title from PDF title page (viewed on Dec. 14, 2007). Includes bibliographical references (p. 107-113).
454

A review of marine pollution in South Australia : the case for monitoring

Rozenbilds, Gaston. January 1991 (has links) (PDF)
Bibliography : leaves 127-135
455

Samband mellan luftföroreningar och klimatfaktorer - en statistisk unersökning

Karlsson, Niklas, Erlingsson, Hanna January 2008 (has links)
<p>That air pollutants of different kind has impact on our climate can hardly have</p><p>avoided anyone during the past years environment explosion in the media. But how</p><p>is it actually with the reverse, i. e. the climate's impact on air pollutants? The aim</p><p>with our degree thesis is to try to find out if different weather factors, statistically</p><p>seen, promotes atmospheric pollutants and particles in the air and vice versa.</p><p>We got access to data on air pollutants and weather factors that was registered</p><p>during year 2007 at Femmanhusets air pollutant and weather station in Gothenburg.</p><p>In order to do a statistical investigation of these data, and to be able to analyze if it</p><p>occurs relations of various kind, we used the statistics program SPSS. In SPSS we</p><p>worked with correlation, regression and multiple linear regressions in order to get</p><p>our statistical relations between atmospheric pollutants and weather conditions.</p><p>Our results showed that ozone is the atmospheric pollutant that is most weather</p><p>sensitive and ozone has also proven to have the strongest connections to the weather</p><p>factors. Also nitrogen monoxide, nitrogen dioxide and carbon monoxide are</p><p>considerably influenced by the weather, however not in equally big extent as ozone.</p><p>Sulphur dioxide and PM10 is on the other hand influenced in a low extent and it is in</p><p>these cases difficult to say if the weather actually has any influence at all. Wind speed</p><p>was, apart from sulphur dioxide and PM10, the weather factor that were strongest</p><p>correlated to the remaining atmospheric pollutants. The relative humidity and the air</p><p>pressure were the two factors that overall gave the weakest connections to the</p><p>pollutants. As a conclusion, we can say that our results can be seen as an indication</p><p>to the public about how sensitive people should minimize their time outdoors in the</p><p>inner city on cold and calm days. It is when these weather conditions occur that the</p><p>highest concentrations of atmospheric pollutants, statistically seen, can be found.</p><p>However, this does not apply for ozone. For ozone, they should instead be aware on</p><p>sunny and windy days as it, statistically seen, is days where high concentrations of</p><p>ozone can be found in the air.</p>
456

Experimental studies of resuspension and weathering of deposited aerosol particles

Reynolds, Bradley Wayne 28 February 1979 (has links)
Graduation date:1979
457

Concentration distributions of non-buoyant, weakly buoyant and buoyant effluents from a continuous point source within a convectively mixed layer

Gurer, Kemal 21 April 1987 (has links)
Graduation date: 1987
458

Survival and persistence of Bacteroidales human and ruminant specific fecal markers and occurrence with fecal pathogens /

Walters, Sarah P. January 1900 (has links)
Thesis (Ph. D.)--Oregon State University, 2007. / Printout. Includes bibliographical references (leaves 135-150). Also available on the World Wide Web.
459

An in vitro study on the immunotoxicity of sewage effluents discharged into the Eerste River- Kuils River water catchment system.

Magcwebeba, Tandeka. January 2008 (has links)
<p>&quot / The aim of the study was to use in vitro human whole blood cultures to screen the water samples collected from the Eerste/Plankenbrug river system for cytotoxicity and inflammatory activity and for the first time investigate the impact on the cell- mediated and humoral immune pathways. Water samples were collected fronm the sites during the dry summer season and rainy winter season. Blood was collected from the healthy male volunteers and diluted with RPMI 1640. For cytotoxicity and inflammatory activity 2.5ul of blood for 18-20 hrs at 37 C... This study shows that waster from the Plankenbrug River is heavily polluted by contaminants from both the agricultural area and informal settlement of Kayamandi. These contaminants can be potentially immunotoxic during the summer season and they can result in inflammatory diarrheal disease and immunosuppression in exposed individuals...&quot / </p>
460

An improved algorithm for data filtering based on variation for short term air pollution prediction in Macau

Yang, Jing Yi January 2012 (has links)
University of Macau / Faculty of Science and Technology / Department of Computer and Information Science

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