The information available on the biological activity of hydrogen sulfide has been examined for present status of critical results pertaining to the toxicity of hydrogen sulfide. This review of the literature is intended as an evaluative report rather than an annotated bibliography of all the source material examined on hydrogen sulfide. The information was selected as it might relate to potential toxic effects of hydrogen sulfide to man and summarized, noting information gaps that may require further investigation. Several recommendations are listed for possible consideration for either toxicological research or additional short- and long-term tests. Two bibliographies have been provided to assist in locating references considered in this report: (1) literature examined but not cited and (2) reference citations. The majority of the references in the first bibliography were considered peripheral information and less appropriate for inclusion in this report.

A Critical Review of the Literature on Hydrogen Sulfide Toxicity

An analytical model for air pollutant transport and deposition from a point source

Chimney plumes in neutral and stable surroundings

Mapping methane concentrations from a controlled release experiment using the next generation airborne visible/infrared imaging spectrometer (AVIRIS-NG)

Pollutants are introduced into the air by many of man’s activities. The potentially harmful effects these can cause are, broadly speaking, of two kinds: long-term, possibly large-scale and wide-spread chronic effects, including long-term effects on the earth’s climate; and acute, short-term effects such as those associated with urban air pollution. This section is concerned with mathematical cloud or plume models describing the role of the atmosphere, primarily in relation to the second of these, the acute effects of air pollution, i.e. those arising from comparatively high concentration levels. The need for such air pollution modeling studies has increased spectacularly as a result of the National Environmental Policy Act of 1968 and, especially, two key court decisions; the Calvert Cliffs decision, and the Sierra Club ruling on environmental non-degradation. This increase is being met in several ways. Many more individuals and companies, a large number, have entered the environmental consulting field.* Similarly many more universities now offer special training in atmospheric diffusion. This workshop itself is a response to the greatly increased demand that exists for information on applications of diffusion modeling to a wide variety of urgent, practical, air-pollution problems.

Atmospheric Dispersion Models for Environmental Pollution Applications

The body of information presented in this paper is directed to those individuals who may be concerned with principal plume dispersion models at coal-burning power plants. About 20 years of comprehensive field surveillance and documentation of dispersion of power plant emissions for a varied range of unit sizes, stack heights, and meteorological conditions have determined the Tennessee Valley Authority’s interpretation of principal plume dispersion models. TVA’s experience indicates that as unit sizes are increased and taller stacks are constructed, the plume dispersion model associated with maximum surface concentrations changes. Maximum surface concentrations for principal plume dispersion models were approximately equal for the early small plants. However, the coning model was considered the critical plume dispersion model because the frequency of recurrence of surface concentrations from this model was appreciably greater than other models. There were progressive changes because of an increase in unit ...

Principal Plume Dispersion Models: TVA Power Plants

A simplified method which is used by the Tennessee Valley Authority to estimate ambient concentrations of atmospheric emissions from its large power plants is presented. The technique requires the use of three nomogrdms for the rapid graphic solution of three dispersion models—coning, inversion breakup, and trapping. A discussion of the meteorological conditions that are associated with these dispersion models, supporting appendices, and a worked example are also presented.

A Simplified Technique Used to Evaluate Atmospheric Dispersion of Emissions from Large Power Plants

This paper is directed to those individuals concerned with preserving the local air quality in areas affected by power plant operations. A meteorological forecast and field measurement program has been developed by the Tennessee Valley Authority for limiting stack emissions at the Paradise Steam Plant to preserve the air quality during adverse atmospheric dispersion conditions. Meteorological and plume dispersion criteria, developed from analysis of prior experience, govern the program. The criteria values are designed for limiting surface sulfur dioxide (SO2) concentrations below an established threshold level. Daily forecasts of vertical wind and temperature distribution, maximum surface temperature, and sky condition are issued each afternoon by the National Oceanic and Atmospheric Administration National Weather Service, Knoxville, Tennessee. Through use of power plant computer facilities, the forecast data are processed to determine quantitative criteria values. If the values indicate that the thresh...

meteorological program for limiting power plant stack emission

(1972) Results of Recent TVA Investigations of Plume Rise Journal of the Air Pollution Control Association: Vol 22, No 10, pp 779-784

https://www.tandfonline.com/doi/pdf/10.1080/00022470.1972.10469713

Results of Recent TVA Investigations of Plume Rise

Cost Analysis for Development and Implementation of a Meteorologically Scheduled SO2 Emission Limitation Program for Use by Power Plants in Meeting Ambient Air Quality SO2 Standards

Thomas L. Montgomery

Papers

Principal Plume Dispersion Models: TVA Power Plants

A Simplified Technique Used to Evaluate Atmospheric Dispersion of Emissions from Large Power Plants

meteorological program for limiting power plant stack emission

Results of Recent TVA Investigations of Plume Rise

Cost Analysis for Development and Implementation of a Meteorologically Scheduled SO2 Emission Limitation Program for Use by Power Plants in Meeting Ambient Air Quality SO2 Standards