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open access

Conceptual Framework for the Development of an Air Quality Monitoring Station in Denton, Texas

Description: Denton, Texas consistently reaches ozone nonattainment levels. This has led to a large focus of air pollution monitoring efforts in the region, with long-range transport being explored as a key contributor. For this study, the University of North Texas Discovery Park campus was chosen as a prospective location for an extensive air quality monitoring station. Sixteen years of ozone and meteorological data for five state-run monitoring sites within a 25 mile radius, including the nearest Denton A… more
Date: August 2016
Creator: Boling, Robyn
Partner: UNT Libraries

Automated Low-cost Instrument for Measuring Total Column Ozone

Description: Networks of ground-based and satellite borne instruments to measure ultraviolet (UV) sunlight and total column ozone have greatly contributed to an understanding of increased amounts of UV reaching the surface of the Earth caused by stratospheric ozone depletion. Increased UV radiation has important potential effects on human health, and agricultural and ecological systems. Observations from these networks make it possible to monitor total ozone decreases and to predict ozone recovery trends … more
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: May 2006
Creator: Nebgen, Gilbert Bernard
Partner: UNT Libraries
captions transcript

[News Clip: Water]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 22, 1983, 5:00 p.m.
Duration: 2 minutes 02 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

Evaluation of the Influence of Non-Conventional Sources of Emissions on Ambient Air Pollutant Concentrations in North Texas

Description: Emissions of air pollutants from non-conventional sources have been on the rise in the North Texas area over the past decade. These include primary pollutants such as volatile organic compound (VOC) and oxides of nitrogen (NOx) which also act as precursors in the formation of ozone. Most of these have been attributed to a significant increase in oil and gas production activities since 2000 within the Barnett Shale region adjacent to the Dallas-Fort Worth metroplex region. In this study, air q… more
Date: August 2015
Creator: Lim, Guo Quan
Partner: UNT Libraries
captions transcript

[News Clip: Freon AC]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story by reporter Deborah Ferguson about the rising cost of Freon due to the Environmental Protection Agency (EPA) banning Refrigerant 12 (R12). This footage includes interviews with an unidentified man at a car dealership, and unidentified man at an automobile repair shop, and a disabled man who is unable to afford the Freon. Broadcast at 6:00pm.
Date: June 29, 1993, 6:00 p.m.
Duration: 1 minute 51 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

An Evaluation of the Correlation Between Shale Gas Development and Ozone Pollution within the Barnett Shale Region

Description: Presentation for the 2014 Fracturing Impacts and Technologies Conference. This presentation discusses an evaluation of the correlation between shale gas development and ozone pollution within the Barnett Shale region.
Date: September 4, 2014
Creator: Ahmadi, Mahdi & John, Kuruvilla
Partner: UNT College of Arts and Sciences
open access

Evaluating spatial patterns of seasonal ozone exposure and incidence of respiratory emergency room visits in Dallas-Fort Worth

Description: This article examines the relationships between spatial patterns of long-term ozone exposure and respiratory illness within Dallas-Fort Worth to better understand impacts on health outcomes.
Date: April 13, 2021
Creator: Northeim, Kari; Marks, Constant & Tiwari, Chetan
Partner: University of North Texas
open access

[News Script: Hill- EPA]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story about Texas attorney general John Hill who told members of the rotary club that he stands ready to go to court if the environmental protection agency tries to enforce it's recently proposed transportation anti pollution rules.
Date: August 29, 1973, 6:00 p.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

Ozone

Description: Although it represents only a tiny fraction of the atmosphere, ozone is crucial for life on Earth. Depending on where ozone resides, it can protect or harm life on Earth.
Date: 2002
Creator: NASA Earth Observatory
Partner: UNT Libraries
open access

Ozone

Description: In the stratosphere, ozone is created primarily by ultraviolet radiation. When high-energy ultraviolet rays strike ordinary oxygen molecules (O2), they split the molecule into two single oxygen atoms, known as atomic oxygen. A freed oxygen atom then combines with another oxygen molecule to form a molecule of ozone. There is so much oxygen in our atmosphere, that these high-energy ultraviolet rays are completely absorbed in the stratosphere.
Date: 2002
Creator: NASA Earth Observatory
Partner: UNT Libraries
open access

Ozone

Description: The term "ozone depletion" means more than just the natural destruction of ozone, it means that ozone loss is exceeding ozone creation.
Date: 2002
Creator: NASA Earth Observatory
Partner: UNT Libraries
open access

Ozone

Description: The amount and distribution of ozone molecules in the stratosphere varies greatly over the globe. Ozone molecules are transported around the stratosphere much as water clouds are transported in the troposphere. Therefore, scientists observing ozone fluctuations over just one spot could not know whether a change in local ozone levels meant an alteration in global ozone levels, or simply a fluctuation in the concentration over that particular spot. Satellites have given scientists the ability to … more
Date: 2002
Creator: NASA Earth Observatory
Partner: UNT Libraries
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