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Showing papers on "Air pollutant concentrations published in 1973"


Journal ArticleDOI
TL;DR: In this article, the authors describe the design and evaluation of an open-top field chamber that was developed to provide an environment more closely resembling ambient conditions than the environment found in closed-top chambers.
Abstract: Reasonable air pollution control policies depend upon a comparison of the costs of air pollution losses with the costs of controls. Present estimates of national economic losses to agricultural and ornamental vegetation are based primarily on field observations and partially on growth and yield data obtained from closed-top field chambers and greenhouses. This research describes the design and evaluation of an open-top field chamber that was developed to provide an environment more closely resembling ambient conditions than the environment found in closed-top chambers. Temperature and relative humidity within open-top chambers were similar to ambient conditions. Direct sunlight reached the plants for a portion of each day and rain entered, although not always uniformly over the chamber base. Chambers receiving charcoal-filtered air protected sensitive ‘Bel W₃’ tobacco plants (Nicotiana tabacum L.) from ambient ozone concentrations. Plants growing in chambers receiving unfiltered air or in ambient air plots were severely injured.

503 citations




Journal ArticleDOI
G. Wall1
TL;DR: The authors discusses the attitudes of Sheffield residents to atmospheric pollution and the Clean Air Act, 1956, and finds that the majority are aware of air pollution but it is an issue which is low in their problem hierarchy.
Abstract: This paper discusses the attitudes of Sheffield residents to atmospheric pollution and the Clean Air Act, 1956. The majority are aware of air pollution but it is an issue which is low in their problem hierarchy. The magnitude of concentrations of gaseous pollutants is overlooked, and declining levels of participate pollution, the existence of legislation, and press reports have reduced public concern for atmospheric pollution.

15 citations


Journal ArticleDOI
TL;DR: The physician should be prepared to counsel susceptible patients on avoiding and reducing risks and to give them special attention to avoid and reduce risks.
Abstract: Air pollution can be a minor health problem or a threat to life The physician should be prepared to counsel susceptible patients on avoiding and reducing risks and to give them special attention d

3 citations


Journal ArticleDOI
26 Oct 1973-Science

3 citations




Book ChapterDOI
01 Jan 1973
TL;DR: The Clean Air Act of 1970 is the basis of air pollution control regulations as they are being developed as discussed by the authors, which constitutes the basis for air pollution regulation as they were being developed.
Abstract: On the 30th of December 1970, the President signed the Clean Air Act of 1970 which constitutes the basis of air pollution control regulations as they are being developed. This provided that the Environmental Protection Agency (EPA) should issue national ambient air standards, which was done on April 30, 1971. These provided nationwide standards for particulate matter, sulfur dioxide, carbon monoxide, oxides of nitrogen, hydrocarbons, and photochemical oxidants. The last two arising from coatings solvents are the two of concern to the coatings industry.

1 citations



Journal ArticleDOI
01 Jan 1973
TL;DR: In this article, the authors present an analysis of three policies for air pollution abatement: air pollution removal, air pollution control, and air pollution mitigation, with the goal of reducing air pollution.
Abstract: (1973). Air pollution abatement: An examination of three policies. C R C Critical Reviews in Environmental Control: Vol. 3, No. 1-4, pp. 121-128.