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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.

Air quality monitoring in the Teton and Gros Ventre Wilderness areas a mixed methods approach /

Allgeier, Andrew R. January 2009 (has links)
Thesis (M.S.)--University of Wyoming, 2009. / Title from PDF title page (viewed on Apr. 20, 2010). Includes bibliographical references.

Short-term air quality forecasts for the Pacific Northwest and long-range global change predictions for the U.S.

Chen, Jack Chi-Mou. January 2007 (has links) (PDF)
Thesis (Ph. D.)--Washington State University, May 2007. / Includes bibliographical references.


King, Gavin 30 November 2011 (has links)
The AQHI, currently used by the Canadian government, is a multi-pollutant public health information tool that is based upon extensive Canadian epidemiological evidence. As the AQHI is a relatively new metric, there is little published information about the accuracy, and behaviour of this metric both spatially and temporally. The goal of this work was to provide more information to the scientific community on the spatial and temporal behaviour of the AQHI in the Halifax, Nova Scotia region. Sampling was conducted in both the winter and summer of 2009, at 50 sites distributed around the city and at the central NAPS site in downtown Halifax. Statistical analysis was conducted using daily calculated AQHI values. AQHI values in the region were predominantly in the 1 to 3 range on the AQHI scale which corresponds to very good air quality. The Government reported AQHI was found to be significantly different from the 50 sample site s AQHI values for both summer and winter (P=<0.001 for both seasons). The Government reported AQHI was significantly higher (P=0.05) than the AQHI calculated for the 50 sampling sites. Analysis identified that more than 50% of the daily AQHI index values were reported differently than the local sites, most commonly over predicted by one AQHI index point. Analysis also indicated a temporal trend of disagreement between the reported and sampled AQHI values. It was observed that during periods when the AQHI was higher, there was greater disagreement between that reported and the sample site AQHI value. This finding raises some concern regarding the behaviour of the AQHI in both larger cities and over the next decade as Halifax increases in size. The miss-reporting of AQHI values also raises some concern for epidemiological work, if the AQHI is used as an exposure metric it could over estimate exposure to air pollution. However, the AQHI is a useful scientific measure having a number of advantages, first it is a multi pollutant measure based on sound epidemiological evidence linking a mixture of three major air pollutant metrics to health effects and second that it has been distilled into a form that is readily understood by the public. This project has been successful in providing more information to the scientific community on the spatial and temporal variation of the AQHI in the Halifax region. It has been able to identify both seasonal and temporal variation, reinforced the understanding of pollutant behaviour and has begun to provide information on the behaviour of the AQHI on small urban scales and provide valuable information for both researchers and policy makers on the AQHI from a public health context.

A review of the air quality in Hong Kong over the decades /

Or, Ngai-chiu. January 2002 (has links)
Thesis (M. Sc.)--University of Hong Kong, 2002. / Includes bibliographical references (leaves 83-84).

A critical review of Hong Kong air quality data /

Ip, To-yan, Francis. January 2001 (has links)
Thesis (M. Sc.)--University of Hong Kong, 2001. / Includes bibliographical references (p. [84-85]).

The New Zealand national environmental standards for ambient air quality : analysis and modelling case study : a thesis submitted in fulfilment of the requirements for the degree of Master of Science in the University of Canterbury /

Thornton, D. P. January 2007 (has links)
Thesis (M. Sc.)--University of Canterbury, 2007. / Typescript (photocopy). Includes bibliographical references (leaves 130-139). Also available via the World Wide Web.

Developing computer models to study the effect of outdoor air quality on indoor air for the purpose of enhancing indoor air quality

Marsik, Tomas. January 2007 (has links)
Thesis (Ph.D.)--University of Alaska Fairbanks, 2007. / Adviser: Ron Johnson. Includes bibliographical references.

Breathe the air in Hong Kong air quality sustainability /

Tang, Hing-fai. January 2002 (has links)
Thesis (M. Sc.)--University of Hong Kong, 2002. / Includes bibliographical references (leaves 79-84).

Clean air requires everyone : a community guidebook to achieve healthier air in the San Joaquin Valley /

Saklar, Jennifer Lee. January 1900 (has links)
Thesis (M.A.)--Humboldt State University, 2008. / Includes bibliographical references (leaves 49-56). Also available via Humboldt Digital Scholar.

Air quality study inside and outside vehicular tunnels in Hong Kong /

Lai, Kam-hung. January 1994 (has links)
Thesis (M. Sc.)--University of Hong Kong, 1994. / Includes bibliographical references (leaves 44-46).

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