Reformulated and Alternative Fuels:  Modeled Impacts on Regional Air Quality with Special Emphasis on Surface Ozone Concentration

2002 ◽  
Vol 36 (14) ◽  
pp. 3147-3156 ◽  
Author(s):  
Benedikt Schell ◽  
Ingmar J. Ackermann ◽  
Heinz Hass
Keyword(s):  
Air Quality ◽  
Ozone Concentration ◽  
Alternative Fuels ◽  
Surface Ozone ◽  
Regional Air Quality ◽  
Surface Ozone Concentration

Observational studies on the variations in surface ozone concentration at Anantapur in southern India

2010 ◽  
Vol 98 (1) ◽  
pp. 125-139 ◽  
Author(s):  
B. Suresh Kumar Reddy ◽  
K. Raghavendra Kumar ◽  
G. Balakrishnaiah ◽  
K. Rama Gopal ◽  
R.R. Reddy ◽  
...  
Keyword(s):  
Ozone Concentration ◽  
Observational Studies ◽  
Surface Ozone ◽  
Southern India ◽  
Surface Ozone Concentration

scholarly journals Modeling the Surface Ozone Concentration in Campo Grande (MS)—Brazil Using Neural Networks

2015 ◽  
Vol 07 (04) ◽  
pp. 171-178 ◽  
Author(s):  
Amaury de Souza ◽  
Flavio Aristone ◽  
Ismail Sabbah
Keyword(s):  
Neural Networks ◽  
Ozone Concentration ◽  
Surface Ozone ◽  
Surface Ozone Concentration

Variation of the surface ozone concentration during precipitation

2020 ◽  
Author(s):  
Igor V. Ptashnik ◽  
Boris D. Belan ◽  
Denis E. Savkin ◽  
Gennadii N. Tolmachev ◽  
Tatayana K. Sklyadneva ◽  
...  
Keyword(s):  
Diurnal Variation ◽  
Ozone Concentration ◽  
Tropospheric Ozone ◽  
Surface Ozone ◽  
Chem Phys ◽  
Global Scale ◽  
Washington Dc ◽  
American Geophysical ◽  
The Impact ◽  
Surface Ozone Concentration

<p>In the review compiled by Monks et al. (2015), it is noted that the main variations in the tropospheric ozone are determined by the exchange between the troposphere and the stratosphere, in-situ photochemical production from gaseous precursors depending on their composition and concentration, solar radiation income, and meteorological conditions. The impact of precipitation on the surface ozone concentration is a less well-studied factor.</p><p>The process of ozone interaction with precipitation was studied theoretically (Heicklen, 1982). Two ways of the above process were analyzed: adsorption of gas molecules on the surface of a particle and a chemical reaction with its surface. There are no direct data on the verification of these findings in the literature. At the same time, there is some evidence of a possible link between precipitation and ozone.</p><p>This study is aimed to analyze the presence or absence of changes in the ozone concentration during precipitation. Variations of the surface ozone concentration (SOC) in the presence of precipitation were analyzed using the long-term data obtained at the TOR-station established in 1992 for ozone monitoring in Tomsk. It was revealed that these changes can be both positive (increase in concentration) and negative. The sharp changes in the SOC are observed when frontal precipitation takes place. In the presence of air-mass precipitation, the sign and magnitude of the change is determined by the diurnal variation of ozone concentration.</p><p>The analysis showed a coincidence of the SOC growth during precipitation with its increase in diurnal variation in 59% of cases. The coincidence in the wave of the concentration decline in the diurnal variation with decreasing precipitation rate is even higher and amounts to 85%.</p><p>Airborne sounding carried out in the vicinity of the TOR-station shown that in a number of cases the ozone deposition from the boundary layer is observed upon the transition of thermal stratification during the precipitation to neutral.</p><p> </p><p>Monks P. S, Archibald A. T., Colette A., Cooper O., Coyle M., Derwent R., Fowler D., Granier C., Law K. S., Mills G. E., Stevenson D. S., Tarasova O., Thouret V., von Schneidemesser E., Sommariva R., Wild O., Williams M. L. Tropospheric ozone and its precursors from the urban to the global scale from air quality to short-lived climate forcer. Atmos. Chem. Phys., 2015, v.15, N15, p.8889–8973.</p><p>Heicklen J. The Removal of Atmospheric Gases by Particulate Matter. In Heterogeneous Atmospheric Chemistry, ed. D. R. Schryer, Geophysical Monograph 26. American Geophysical Union, Washington, DC, USA, 1982, p. 93-98.</p>

scholarly journals Effects of ozone–vegetation coupling on surface ozone air quality via biogeochemical and meteorological feedbacks

2017 ◽  
Vol 17 (4) ◽  
pp. 3055-3066 ◽  
Author(s):  
Mehliyar Sadiq ◽  
Amos P. K. Tai ◽  
Danica Lombardozzi ◽  
Maria Val Martin
Keyword(s):  
Air Quality ◽  
Ozone Concentration ◽  
Dry Deposition ◽  
Surface Ozone ◽  
Stomatal Closure ◽  
Deposition Velocity ◽  
Ecosystem Structure ◽  
Earth System ◽  
Hazardous Air Pollutants ◽  
Semi Empirical

Abstract. Tropospheric ozone is one of the most hazardous air pollutants as it harms both human health and plant productivity. Foliage uptake of ozone via dry deposition damages photosynthesis and causes stomatal closure. These foliage changes could lead to a cascade of biogeochemical and biogeophysical effects that not only modulate the carbon cycle, regional hydrometeorology and climate, but also cause feedbacks onto surface ozone concentration itself. In this study, we implement a semi-empirical parameterization of ozone damage on vegetation in the Community Earth System Model to enable online ozone–vegetation coupling, so that for the first time ecosystem structure and ozone concentration can coevolve in fully coupled land–atmosphere simulations. With ozone–vegetation coupling, present-day surface ozone is simulated to be higher by up to 4–6 ppbv over Europe, North America and China. Reduced dry deposition velocity following ozone damage contributes to ∼ 40–100 % of those increases, constituting a significant positive biogeochemical feedback on ozone air quality. Enhanced biogenic isoprene emission is found to contribute to most of the remaining increases, and is driven mainly by higher vegetation temperature that results from lower transpiration rate. This isoprene-driven pathway represents an indirect, positive meteorological feedback. The reduction in both dry deposition and transpiration is mostly associated with reduced stomatal conductance following ozone damage, whereas the modification of photosynthesis and further changes in ecosystem productivity are found to play a smaller role in contributing to the ozone–vegetation feedbacks. Our results highlight the need to consider two-way ozone–vegetation coupling in Earth system models to derive a more complete understanding and yield more reliable future predictions of ozone air quality.

Surface ozone concentration variability in Moscow and Kiev

2010 ◽  
Vol 35 (12) ◽  
pp. 806-812 ◽  
Author(s):  
A. M. Zvyagintsev ◽  
I. B. Belikov ◽  
N. F. Elanskii ◽  
I. N. Kuznetsova ◽  
Ya. O. Romanyuk ◽  
...  
Keyword(s):  
Ozone Concentration ◽  
Surface Ozone ◽  
Surface Ozone Concentration

scholarly journals Effects of ozone-vegetation coupling on surface ozone air quality via biogeochemical and meteorological feedbacks

2016 ◽  
Author(s):  
Mehliyar Sadiq ◽  
Amos P. K. Tai ◽  
Danica Lombardozzi ◽  
Maria Val Martin
Keyword(s):  
Air Quality ◽  
Ozone Concentration ◽  
Dry Deposition ◽  
Surface Ozone ◽  
Stomatal Closure ◽  
Deposition Velocity ◽  
Ecosystem Structure ◽  
Earth System ◽  
Hazardous Air Pollutants ◽  
Semi Empirical

Abstract. Tropospheric ozone is one of the most hazardous air pollutants as it harms both human health and plant productivity. Foliage uptake of ozone via dry deposition damages photosynthesis and causes stomatal closure. These foliage changes could lead to a cascade of biogeochemical and biogeophysical effects that not only modulate the carbon cycle, regional hydrometeorology and climate, but also cause feedbacks onto surface ozone concentration itself. In this study, we implement a semi-empirical parameterization of ozone damage on vegetation in the Community Earth System Model to enable online ozone-vegetation coupling, so that for the first time ecosystem structure and ozone concentration can coevolve in fully coupled land-atmosphere simulations. With ozone-vegetation coupling, present-day surface ozone is simulated to be higher by up to 6 ppbv over Europe, North America and China. Reduced dry deposition velocity following ozone damage contributes to ~ 40–100 % of those increases, constituting a significant positive biogeochemical feedback on ozone air quality. Enhanced biogenic isoprene emission is found to contribute to most of the remaining increases, and is driven mainly by higher vegetation temperature that results from lower transpiration rate. This isoprene-driven pathway represents an indirect, positive meteorological feedback. The reduction in both dry deposition and transpiration is mostly associated with reduced stomatal conductance following ozone damage, whereas the modification of photosynthesis and further changes in ecosystem productivity (which are significant per se) are found to play a smaller role in contributing to the ozone-vegetation feedbacks. Our results highlight the need to consider two-way ozone-vegetation coupling in Earth system models to derive a more complete understanding and yield more reliable future predictions of ozone air quality.

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