scholarly journals Death of Coal and Breath of Life: The Effect of Power Plant Closure on Local Air Quality

2020 ◽  
Author(s):  
Jason Brown ◽  
Colton Tousey
Keyword(s):  
Air Quality ◽  
Power Plant ◽  
Plant Closure

scholarly journals Air quality measurements in the coal-fired power plant environment of Colstrip, Montana

1979 ◽  
Author(s):  
J.D. Ludwick ◽  
D.B. Weber ◽  
K.B. Olsen ◽  
S.R. Garcia
Keyword(s):  
Air Quality ◽  
Power Plant ◽  
Plant Environment ◽  
Air Quality Measurements ◽  
Quality Measurements

Status of and experience with NOx reduction in coal-fired power plants

1997 ◽  
Vol 211 (1) ◽  
pp. 27-41 ◽  
Author(s):  
M Stöhr ◽  
H Schütz ◽  
H Krüger
Keyword(s):  
Air Quality ◽  
Power Plant ◽  
Environmental Impact ◽  
Flue Gas ◽  
Power Plants ◽  
Nox Reduction ◽  
Small Power

Power plant operators in Germany, Europe and other countries are reducing flue gas NOx emissions of large and small power plants to meet air quality regulations for the population and the environment. Beginning with the environmental impact, the use of different techniques for NOx reduction and experience with these techniques is given.

Air quality modeling and inhalation health risk assessment for a new generation coal-fired power plant in Central Italy

2018 ◽  
Vol 644 ◽  
pp. 884-898 ◽  
Author(s):  
Antonio Piersanti ◽  
Mario Adani ◽  
Gino Briganti ◽  
Andrea Cappelletti ◽  
Luisella Ciancarella ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Air Quality ◽  
Power Plant ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Central Italy ◽  
Air Quality Modeling ◽  
Quality Modeling ◽  
New Generation

Air quality impacts of power plant emissions in Beijing

2007 ◽  
Vol 147 (2) ◽  
pp. 401-408 ◽  
Author(s):  
Jiming Hao ◽  
Litao Wang ◽  
Minjia Shen ◽  
Lin Li ◽  
Jingnan Hu
Keyword(s):  
Air Quality ◽  
Power Plant ◽  
Power Plant Emissions ◽  
Plant Emissions

Study on the Countermeasures of NOx Emission Reduction in Chengdu Economic Circle

2013 ◽  
Vol 726-731 ◽  
pp. 2324-2332
Author(s):  
Wen Yong Wang ◽  
Xiao Juan Ma
Keyword(s):  
Air Quality ◽  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Ambient Air ◽  
Control Measures ◽  
Cement Plant ◽  
Air Quality Model ◽  
Quality Model ◽  
Mean Concentration

Based on the detailed survey on the source and volume of NOx emission over Chengdu Economic Circle, the third-generation air quality model CMAQ is adopted for simulating the density of NOx in the air over Chengdu Economic Circle. The result shows that the hourly concentration, daily mean concentration and annual mean concentration of NOx in air exceed the standard data, and the affected areas respectively account for 0.2%, 0.18% and 0.12% of the total area of the economic circle. Meanwhile, in accordance with the simulation calculation, The NOX emission of the vehicle exhaust, the thermal power plant and the cement plant are the major NOX concentration contribution sources in air, contribution rate is amounting to 39.13%, 21.41% and 15.34% respectively. Thus, three main measures to reduce the emission of NOx of Chengdu Economic Circle are proposed as follows: firstly, strengthen the management of vehicle and reduce the emission of NOx by the vehicle; secondly, manage the NOx of the industrial enterprise; flue gas denitrification equipment must be constructed in the thermal power plant and cement manufacturing enterprise, and the comprehensive denitration efficiency of the thermal power plant should be not less than 70% and the comprehensive denitration efficiency of the cement plant should not be less than 60%; thirdly, joint prevention and control measures should be implemented between the cities, so as to reduce the transport of NOx. With the application of the above measures, the emission reductions of NOx can be reduced to 55% of the existing volume, and the concentration of NOx in the air can meet with the Class II of national ambient air quality Standard.

scholarly journals Now you see it, now you don't: impact of temporary closures of a coal-fired power plant on air quality in the Columbia River Gorge National Scenic Area

2009 ◽  
Vol 9 (3) ◽  
pp. 14235-14261 ◽  
Author(s):  
D. A. Jaffe ◽  
D. R. Reidmiller
Keyword(s):  
Air Quality ◽  
Power Plant ◽  
Pacific Northwest ◽  
Columbia River ◽  
Back Trajectories ◽  
The Pacific ◽  
Full Capacity ◽  
The Difference ◽  
Plant Emissions ◽  
East End

Abstract. We have analyzed 14 years of aerosol data spanning 1993–2006 from the IMPROVE site at Wishram, Washington (45.66° N, 121.00° W; 178 m above sea level) in the Columbia River Gorge (CRG) National Scenic Area (http://www.fs.fed.us/r6/columbia/) of the Pacific Northwest of the US. Two types of analyses were conducted. First, we examined the transport for days with the highest fine mass concentrations (particulate matter with diameter <2.5μm or, PM2.5) using HYSPLIT back-trajectories. We found that the highest PM2.5 concentrations occurred during autumn and were associated with easterly flow, down the CRG. Such flow transports emissions from a large coal power plant and a large agricultural facility into the CRG. This transport was found on 20 out of the 50 worst PM2.5 days and resulted in an average daily concentration of 20.1 μg/m3, compared with an average of 18.8 μg/m3 for the 50 highest days and 5.9 μg/m3 for all days. These airmasses contain not only high PM2.5 concentrations but also elevated aerosol NO3− concentrations. These results suggest that emissions from large industrial and agricultural sources on the east end of the CRG, including the coal-fired power plant at Boardman, Oregon, have a significant impact on air quality in the region. In the second analysis, we examined PM2.5 concentrations in the CRG during periods when the Boardman power plant was shut down due to repairs and compared these values with concentrations when the facility was operating at near full capacity. We also examined this relationship on the days when trajectories suggested the greatest influence from the power plant on air quality in the CRG. From this analysis, we found significantly higher PM concentrations when the power plant was operating at or near full capacity. We use these data to calculate that the contribution to PM2.5 mass in the CRG from the Boardman plant was 0.90 μg/m3 averaged over the entire year, 3.94 μg/m3 if only the month of November is considered and 7.40 ug/m3 if only November days when the airflow is "down-gorge" (from east to west). This represents 15–56% of PM2.5 mass in the CRG. In all 3 cases the difference in PM2.5 concentrations are statistically significant at a >95% confidence interval for the comparison of normal plant emissions vs shutdown conditions. We, therefore, find that the coal-fired power plant at Boardman, Oregon is a significant contributor to PM2.5 concentrations in the CRG.

scholarly journals Supplementary material to "Power Plant Fuel Switching and Air Quality in a Tropical Forested Environment"

2017 ◽  
Author(s):  
Adan S. S. Medeiros ◽  
Gisele Calderaro ◽  
Patricia C. Guimarães ◽  
Mateus R. Magalhaes ◽  
Marcos V. B. Morais ◽  
...  
Keyword(s):  
Air Quality ◽  
Power Plant ◽  
Fuel Switching ◽  
Supplementary Material
Sign in / Sign up

Export Citation Format

Share Document