Impact of NOx Emissions Released from a Gas Turbine-Based Power Plant on the Ambient Air Quality

An analysis of gas turbine ambient air quality impact is presented, from the standpoint of the acceptability of alternate fuels having higher sulfur content and possibly higher particulate emissions. Various plume rise formulas are compared, and formulas are given for maximum ground level concentrations for both short term (1 to 3 hr) and intermediate (3 to 24 hr) periods. The results show that the U.S. Federal Air quality standards may allow large gas turbine complexes (∼500 mw) burning up to 1% sulfur fuel, for example. Taking advantage of this capability could increase the supply of lower sulfur fuels for home heating and/or transportation use.

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An assessment of ambient air quality in two major cities in the state of Kuwait

International Journal of Engineering & Technology ◽

10.14419/ijet.v4i2.4550 ◽

2015 ◽

Vol 4 (2) ◽

pp. 358 ◽

Cited By ~ 2

Author(s):

Raslan Alenezi ◽

Bader Al-anezi

Keyword(s):

Air Pollution ◽

Air Quality ◽

Power Plant ◽

Air Pollutants ◽

Road Traffic ◽

Ambient Air ◽

The State ◽

Oil Fields ◽

Ambient Air Quality ◽

The State Of Kuwait

In this study, hourly mean continuous air pollution data for the year 2010 from two monitoring stations in major urban districts in the State of Kuwait were analyzed. The ambient air quality in the Al-Mansouriah and Al-Jahra districts was evaluated in terms of the hourly average concentrations of selected major air pollutants during the winter and summer seasons. The diurnal variations of these pollutants were analyzed, and in-depth comparisons of the two pollutant concentrations for the two districts were conducted to determine the predominant sources of the air pollutants. The concentrations of CO, PM10 and NO2 in the two districts exhibited different patterns in the summer and winter due to differences in the activities that take place in the surrounding areas. The concentrations of SO2 were high in both cities because of the Al-Doha power plant and oil fields near the city in Al-Jahra. The ozone concentration is highly correlated with NOx emissions and is greater in the summer than in the winter. The results confirm that road traffic is a major source of air pollution in the Al-Mansouriah district. The Al-Doha power plant and the oil fields near Al-Jahra greatly affect the air quality in that district.

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Health effects of power plant emissions through ambient air quality

Journal of the Royal Statistical Society Series A (Statistics in Society) ◽

10.1111/rssa.12547 ◽

2020 ◽

Vol 183 (4) ◽

pp. 1677-1703

Author(s):

Chanmin Kim ◽

Lucas R. F. Henneman ◽

Christine Choirat ◽

Corwin M. Zigler

Keyword(s):

Air Quality ◽

Power Plant ◽

Health Effects ◽

Ambient Air ◽

Ambient Air Quality ◽

Power Plant Emissions ◽

Plant Emissions

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Coping With Gas Turbine Emissions Regulations

Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations ◽

10.1115/87-gt-239 ◽

1987 ◽

Author(s):

J. C. Solt

Keyword(s):

Air Quality ◽

Gas Turbine ◽

Quality Standards ◽

Ambient Air ◽

The United States ◽

The State ◽

Federal Regulations ◽

Ambient Air Quality ◽

Air Quality Standards ◽

Ambient Air Quality Standards

The subject of emissions regulations is complex. Worldwide there are over 20 countries that regulate permissible emissions, each with its own regulations. Certain groups, such as the European Economic Community (EEC) have regulations for all of their members. In the United States, federal regulations (Fig. 1) fall under the Environmental Protection Agency (EPA), while there are separate regulations for each of the 50 states. Fortunately, most of the state regulations are simply adapted from and are quite similar to federal regulations. However, several states have significantly more stringent standards than the federal regulations. The State of California, for example, not only has separate regulations, but each of the 45 pollution control districts within the state has its own regulations, most of which differ substantially from each other. The following is a discussion of the U.S. federal regulations as they apply to areas that presently meet the ambient air quality standards. These are called attainment areas. Areas that do not meet the ambient air quality standards are called nonattainment areas. For a gas turbine application in a nonattainment area, such as Denver, or in the State of California, it is imperative to check local regulations, which result from the federal regulations for nonattainment areas.

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UK surface NO2 levels dropped by 42 % during the COVID-19 lockdown: impact on surface O3

Atmospheric Chemistry and Physics ◽

10.5194/acp-20-15743-2020 ◽

2020 ◽

Vol 20 (24) ◽

pp. 15743-15759

Author(s):

James D. Lee ◽

Will S. Drysdale ◽

Doug P. Finch ◽

Shona E. Wilde ◽

Paul I. Palmer

Keyword(s):

Air Quality ◽

Sharp Decrease ◽

Ambient Air ◽

Air Pollutant ◽

Urban Traffic ◽

Nox Emissions ◽

Ambient Air Quality ◽

Urban Background ◽

Quality Objective ◽

The Uk

Abstract. We report changes in surface nitrogen dioxide (NO2) across the UK during the COVID-19 pandemic when large and rapid emission reductions accompanied a nationwide lockdown (23 March–31 May 2020, inclusively), and compare them with values from an equivalent period over the previous 5 years. Data are from the Automatic Urban and Rural Network (AURN), which forms the basis of checking nationwide compliance with ambient air quality directives. We calculate that NO2 reduced by 42 %±9.8 % on average across all 126 urban AURN sites, with a slightly larger (48 %±9.5 %) reduction at sites close to the roadside (urban traffic). We also find that ozone (O3) increased by 11 % on average across the urban background network during the lockdown period. Total oxidant levels (Ox=NO2+O3) increased only slightly on average (3.2 %±0.2 %), suggesting the majority of this change can be attributed to photochemical repartitioning due to the reduction in NOx. Generally, we find larger, positive Ox changes in southern UK cities, which we attribute to increased UV radiation and temperature in 2020 compared to previous years. The net effect of the NO2 and O3 changes is a sharp decrease in exceedances of the NO2 air quality objective limit for the UK, with only one exceedance in London in 2020 up until the end of May. Concurrent increases in O3 exceedances in London emphasize the potential for O3 to become an air pollutant of concern as NOx emissions are reduced in the next 10–20 years.

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UK surface NO2 levels dropped by 42 % during the COVID-19 lockdown: impact on surface O3

10.5194/acp-2020-838 ◽

2020 ◽

Cited By ~ 1

Author(s):

James D. Lee ◽

Will S. Drysdale ◽

Doug P. Finch ◽

Shona E. Wilde ◽

Paul I. Palmer

Keyword(s):

Air Quality ◽

Sharp Decrease ◽

Ambient Air ◽

Air Pollutant ◽

Urban Traffic ◽

Nox Emissions ◽

Ambient Air Quality ◽

Urban Background ◽

Quality Objective ◽

The Uk

Abstract. We report changes in surface nitrogen dioxide (NO2) across the UK during the COVID-19 pandemic when large and rapid emission reductions accompanied a nationwide lockdown (23rd March–31st May, 2020, inclusively), and compare them with values from an equivalent period over the previous five years. Data are from the Automatic Urban and Rural Network (AURN) that form the basis of checking nationwide compliance with ambient air quality directives. We calculate that NO2 reduced by 42 % on average across all 126 urban AURN sites, with a slightly larger (48 %) reduction at sites close to the roadside (urban traffic). We also find that ozone (O3) increased by 11 % on average across the urban background network during the lockdown period. Total oxidant levels (Ox = NO2 + O3) increased only slightly on average (3 %), suggesting the majority of this change can be attributed to photochemical repartitioning due to the reduction in NOx. Generally, we find larger, positive Ox changes in southern UK cities which we attribute to increased UV radiation and temperature in 2020 compared to previous years. The net effect of the NO2 and O3 changes is a sharp decrease in exceedances of the NO2 air quality objective limit for the UK, with only one exceedance in London in 2020 up until the end of May. Concurrent increases in O3 exceedances in London emphasize the potential for O3 to become an air pollutant of concern as NOx emissions are reduced in the next 10–20 years.

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Application of Electron Optics to Characterization of Particulate Pollutants

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010009508x ◽

1972 ◽

Vol 30 ◽

pp. 364-365

Author(s):

J. B. Moran ◽

J. L. Miller

Keyword(s):

Air Quality ◽

Quality Standards ◽

Ambient Air ◽

Hazardous Substances ◽

Fuel Additives ◽

Ambient Air Quality ◽

Air Quality Standards ◽

Emission Standards ◽

Stationary Sources ◽

Ambient Air Quality Standards

The Clean Air Act Amendments of 1970 provide the basis for a dramatic change in Federal air quality programs. The Act establishes new standards for motor vehicles and requires EPA to establish national ambient air quality standards, standards of performance for new stationary sources of pollution, and standards for stationary sources emitting hazardous substances. Further, it establishes procedures which allow states to set emission standards for existing sources in order to achieve national ambient air quality standards. The Act also permits the Administrator of EPA to register fuels and fuel additives and to regulate the use of motor vehicle fuels or fuel additives which pose a hazard to public health or welfare.National air quality standards for particulate matter have been established. Asbestos, mercury, and beryllium have been designated as hazardous air pollutants for which Federal emission standards have been proposed.

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