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343 Matching Results
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Asthma and air pollution in the Los Angeles area. Technical report No. 35
Daily asthma attack diaries of sixteen panels of asthmatics residing in the Los Angeles area were collected by the Environmental Protection Agency for 34 week periods during the years 1972 to 1975. These data are examined here for the relationship between daily attack occurrence and daily levels of photochemical oxidant, total suspended particulates, minimum temperature, relative humidity, and average wind speed. A separate multiple logistic regression is used for each panelist's attack data. Variables representing the presence or absence of attack on the preceding day, as well as day of week and time since the start of the study, are included in the regressions. The most significant predictor of attacks was the presence of an attack on the preceding day. On the average, the panelists tended to have increased attacks on days with high oxidant and particulate pollution, on cool days, and during the first two months of the study. Panelists' attack propensity also differed by day of week; in particular they had more attacks on Saturdays (the last day of the weekly reporting period) than on Sundays. Each panelist's regression coefficients are classified according to his age, sex, hay fever status and self-assessed attack precursors; this classification is used …
Date:
March 1, 1980
Creator:
Whittemore, A S & Korn, E L
Object Type:
Report
System:
The UNT Digital Library
Comparison of normal and asthmatic subjects' responses to sulfate pollutant aerosols
Epidemiological studies support an association between elevated levels of sulfates and acute respiratory disease. To determine if these pollutants produce airway hyperreactivity, 16 normal and 17 asthmatic subjects inhaled a control NaCl aerosol and the following sulfates: ammonium sulfate, sodium bisulfate, ammonium bisulfate, and sulfuric acid. A Lovelace generator produced particles with an average MMAD of approx. 1.0 ..mu..m (sigma/sub g/ approx. = 2.0) and concentrations of 0.1 and 1.0 mg/m/sup 3/. By double-blind randomization, all subjects breathed these aerosols for a 16-minute period. To determine if sulfate inhalation caused increased reactivity to a known bronchoconstrictor, all subjects inhaled carbachol following each 16-minute exposure. Before, during, and after exposure, pulmonary function studies were performed. When compared to NaCl, sulfate (1 mg/m/sup 3/) produced significant reductions in airway conductance and flow rates in asthmatics. The two most sensitive asthmatics demonstrated changes even at 0.1 mg/m/sup 3/ sulfate. To a far more significant degree, the bronchoconstrictor action of carbachol was potentiated by sulfates more or less in relation to their acidity in normals and asthmatics.
Date:
January 1, 1980
Creator:
Utell, M. J.; Morrow, P. E. & Hyde, R. W.
Object Type:
Article
System:
The UNT Digital Library
Pawhuska Daily Journal-Capital (Pawhuska, Okla.), Vol. 71, No. 121, Ed. 1 Tuesday, June 17, 1980
Daily newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 17, 1980
Creator:
Spencer, Frank
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Sun (Alvin, Tex.), Vol. 90, No. 227, Ed. 1 Tuesday, June 24, 1980
Daily newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
June 24, 1980
Creator:
Looney, Richard
Object Type:
Newspaper
System:
The Portal to Texas History
Sulphur Springs News-Telegram (Sulphur Springs, Tex.), Vol. 102, No. 144, Ed. 1 Tuesday, June 17, 1980
Daily newspaper from Sulphur Springs, Texas that includes local, state, and national news along with advertising.
Date:
June 17, 1980
Creator:
Keys, Clarke
Object Type:
Newspaper
System:
The Portal to Texas History
The Chickasha Daily Express (Chickasha, Okla.), Vol. 88, No. 67, Ed. 1 Tuesday, June 17, 1980
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 17, 1980
Creator:
Drew, Charles C.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Stephenville Empire-Tribune (Stephenville, Tex.), Vol. 111, No. 257, Ed. 1 Tuesday, June 17, 1980
Daily newspaper from Stephenville, Texas that includes local, state, and national news along with advertising.
Date:
June 17, 1980
Creator:
Doggett, Denver
Object Type:
Newspaper
System:
The Portal to Texas History
The Perry Daily Journal (Perry, Okla.), Vol. 87, No. 116, Ed. 1 Tuesday, June 17, 1980
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 17, 1980
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Hereford Brand (Hereford, Tex.), Vol. 80, No. 234, Ed. 1 Wednesday, May 28, 1980
Daily newspaper from Hereford, Texas that includes local, state, and national news along with advertising.
Date:
May 28, 1980
Creator:
Sims, Paul
Object Type:
Newspaper
System:
The Portal to Texas History
The Chickasha Daily Express (Chickasha, Okla.), Vol. 87, No. 262, Ed. 1 Monday, January 21, 1980
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 21, 1980
Creator:
Drew, Charles C.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Pawhuska Daily Journal-Capital (Pawhuska, Okla.), Vol. 71, No. 158, Ed. 1 Thursday, August 7, 1980
Daily newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 7, 1980
Creator:
Adkisson, Larry R.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 87, No. 159, Ed. 1 Thursday, August 7, 1980
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 7, 1980
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Hereford Brand (Hereford, Tex.), Vol. 81, No. 65, Ed. 1 Tuesday, September 30, 1980
Daily newspaper from Hereford, Texas that includes local, state, and national news along with advertising.
Date:
September 30, 1980
Creator:
Steiert, Jim
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 58, No. 245, Ed. 1 Tuesday, July 22, 1980
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
July 22, 1980
Creator:
Brown, Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Chickasha Daily Express (Chickasha, Okla.), Vol. 87, No. 256, Ed. 1 Monday, January 14, 1980
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 14, 1980
Creator:
Drew, Charles C.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Hereford Brand (Hereford, Tex.), Vol. 81, No. 54, Ed. 1 Sunday, September 14, 1980
Daily newspaper from Hereford, Texas that includes local, state, and national news along with advertising.
Date:
September 14, 1980
Creator:
Steiert, Jim
Object Type:
Newspaper
System:
The Portal to Texas History
Health effects of fossil-fuel combustion products: needed research
An examination is made of the research needed to expand and clarify the understanding of the products of fossil-fuel combustion, chiefly that taking place in stationary sources of power. One of the specific objectives that guided the study on which this report is based was to identify the pollutants potentially hazardous to man that are released into the environment in the course of the combustion of fossil fuels. The hazards of principal concern are those which could cause deleterious, long-term somatic and genetic effects. Another objective was to specify the nature of the research needed to determine the health effects of these pollutants on the general population. Special attention was paid to the interaction of pollutants; the meteorologic and climatic factors that affect the transport, diffusion, and transformation of pollutants; the effects of concentrations of aerosol, particulate, and thermal loads on biologic systems; and the susceptibility of some portions of the population to the effects of pollutants on the skin and cardiovascular, pulmonary, and urinary systems. Other objectives were to evaluate the methods of the proposed research, including analytic and interpretation techniques, to identify fields in which the available scientific information is inadequate for regulatory decision-making and to recommend a …
Date:
January 1, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Chickasha Daily Express (Chickasha, Okla.), Vol. 88, No. 141, Ed. 1 Tuesday, September 9, 1980
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 9, 1980
Creator:
Drew, Charles C.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Texas Jewish Post (Fort Worth, Tex.), Vol. 34, No. 43, Ed. 1 Thursday, October 23, 1980
Weekly Jewish newspaper from Fort Worth, Texas that includes local, state, and national news along with extensive advertising.
Date:
October 23, 1980
Creator:
Wisch, J. A.
Object Type:
Newspaper
System:
The Portal to Texas History
Sulphur Springs News-Telegram (Sulphur Springs, Tex.), Vol. 102, No. 187, Ed. 1 Thursday, August 7, 1980
Daily newspaper from Sulphur Springs, Texas that includes local, state, and national news along with advertising.
Date:
August 7, 1980
Creator:
Keys, Clarke
Object Type:
Newspaper
System:
The Portal to Texas History
The Chickasha Daily Express (Chickasha, Okla.), Vol. 88, No. 111, Ed. 1 Thursday, August 7, 1980
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 7, 1980
Creator:
Drew, Charles C.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 87, No. 187, Ed. 1 Tuesday, September 9, 1980
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 9, 1980
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Pawhuska Daily Journal-Capital (Pawhuska, Okla.), Vol. 71, No. 181, Ed. 1 Tuesday, September 9, 1980
Daily newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 9, 1980
Creator:
Adkisson, Larry R.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Sulphur Springs News-Telegram (Sulphur Springs, Tex.), Vol. 102, No. 41, Ed. 1 Monday, February 18, 1980
Daily newspaper from Sulphur Springs, Texas that includes local, state, and national news along with advertising.
Date:
February 18, 1980
Creator:
Keys, Clarke
Object Type:
Newspaper
System:
The Portal to Texas History