Investigating the Real Air Pollution Exchange at Urban Sites Based on Time Variation of Columnar Content of the Components

Alföldy, Bálint; Steib, Roland

doi:10.1007/s11270-010-0730-4

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…Atmospheric dilution and dispersion significantly affect the pollution accumulation in the planetary boundary layer and play an essential role in the formation of the concentration level (Alfoldy and Steib, 2011). For the quantification of the dispersion of the pollution, the ventilation coefficient (VC, m 2 s −1 ) as the product of the horizontal wind speed and the depth of the planetary boundary layer was applied.…”

Section: Meteorological Situationmentioning

confidence: 99%

Source apportionment of black carbon and combustion-related CO₂ for the determination of source-specific emission factors

Alföldy

Gregorič²,

Ivančič³

et al. 2023

Atmos. Meas. Tech.

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Abstract. Black carbon (BC) aerosol typically has two major sources in the urban environment: traffic and domestic biomass burning, which has a significant contribution to urban air pollution during the heating season. Traffic emissions have been widely studied by both laboratory experiments (individual vehicle emission) and real-world measurement campaigns (fleet emission). However, emission information from biomass burning is limited, especially an insufficiency of experimental results from real-world studies. In this work, the black carbon burden in the urban atmosphere was apportioned to fossil fuel (FF) and biomass burning (BB) related components using the Aethalometer source apportionment model. Applying the BC source apportionment information, the combustion-related CO2 was apportioned by multilinear regression analysis, supposing that both CO2 components should be correlated with their corresponding BC component. The combination of the Aethalometer model with the multilinear regression analysis (AM-MLR) provided the source-specific emission ratios (ERs) as the slopes of the corresponding BC–CO2 regressions. Based on the ER values, the source-specific emission factors (EFs) were determined using the carbon content of the corresponding fuel. The analysis was carried out on a 3-month-long BC and CO2 dataset collected at three monitoring locations in Ljubljana, Slovenia, between December 2019 and March 2020. The measured mean site-specific concentration values were in the 3560–4830 ng m−3 and 458–472 ppm ranges for BC and CO2, respectively. The determined average EFs for BC were 0.39 and 0.16 g(kg fuel)−1 for traffic and biomass burning, respectively. It was also concluded that the traffic-related BC component dominates the black carbon concentration (55 %–64 % depending on the location), while heating has the major share in the combustion-related CO2 (53 %–62 % depending on the location). The method gave essential information on the source-specific emission factors of BC and CO2, enabling better characterization of urban anthropogenic emissions and the respective measures that may change the anthropogenic emission fingerprint.

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Section: Meteorological Situationmentioning

confidence: 99%

Source apportionment of black carbon and combustion-related CO₂ for the determination of source-specific emission factors

Alföldy

Gregorič²,

Ivančič³

et al. 2023

Atmos. Meas. Tech.

View full text Add to dashboard Cite

show abstract

Section: Meteorological Situationmentioning

confidence: 99%

Source apportionment of black carbon and combustion-related CO₂ for the determination of source-specific emission factors

Alföldy

Gregorič

Ivančič

et al. 2022

Preprint

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Abstract. Black carbon aerosol (BC) typically has two major sources in the urban environment; traffic, and domestic biomass burning which has a significant contribution to urban air pollution during the heating season. Traffic emissions have been widely studied by both laboratory experiments (individual vehicle emission) and real-world measurement campaigns (fleet emission). However, emission information from biomass burning is limited, especially an insufficiency of experimental results from real-world studies. In this work, the black carbon burden in the urban atmosphere was apportioned to fossil fuel (FF) and biomass burning (BB) related components using the Aethalometer source apportionment model. Applying the BC source apportionment information, the combustion-related CO2 was apportioned by multi-linear regression analysis, supposing that both CO2 components should be correlated with their corresponding BC component. The combination of the Aethalometer model with the multi-linear regression analysis (AM-MLR) provided the source-specific emission ratios (ER) as the slope of the corresponding BC-CO2 regression. Based on the ER values, the source-specific emission factors (EFs) were determined using the carbon content of the corresponding fuel. The analysis has been carried out on a three-month long BC and CO2 dataset collected at three monitoring locations in Ljubljana, Slovenia, between December 2019 and March 2020. The measured mean site-specific concentration values were in the 3500–4800 ng m-3 and 458–472 ppm range for BC and CO2, respectively. The determined average EFs for BC were 0.39 and 0.16 g/(kg fuel) for traffic and biomass burning, respectively. It was also concluded that the traffic-related BC component dominates the black carbon concentration (55–65 % depending on the location), while heating has the major share in the combustion-related CO2 (53–62 % depending on the location). The method gave essential information on the source-specific emission factors of BC and CO2, enabling better characterization of urban anthropogenic emissions and the respective measures that may change the anthropogenic emission fingerprint.

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“…Govindaraju et al (2010) analyzed the impact assessment of air pollution stress on plants species through biochemical estimations. Alföldy and Steib (2011) and Seeyeednejad et al (2009aSeeyeednejad et al ( , b, 2011 and investigated varied effects of air pollution on certain plants.…”

Section: Introductionmentioning

confidence: 99%

Efficient control of air pollution through plants, a cost-effective alternative: studies on Dalbergia sissoo Roxb

Kapoor

Bamniya

Kapoor

2013

Environ Monit Assess

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Plants can be used as both passive biomonitors and biomitigators in urban and industrial environments to indicate the environmental quality and to ameliorate pollution level in a locality. Many studies reveal that plants are negatively affected by the ambient levels of air pollutants. The present study was conducted to evaluate the impact of air pollution on comparative basis with reference to changes in photosynthetic pigments, plant height, leaves, as well as, biochemical parameters of plants of different sites around Udaipur city receiving varying levels of pollution load. The investigated tree species Dalbergia sissoo Roxb. (Family: Fabaceae) exhibited a reduction in various physiological and biochemical growth parameters that correspond with air pollution levels at different sites. The tree species growing in polluted and control areas were compared with respect to foliar dust load, leaf area, and chlorophyll and total carbohydrate and total protein concentration in the leaves. Our studies suggest that D. sissoo Roxb. can successfully be grown in an area for monitoring air pollution, where it is mild and droughts are common. It will prove as an ideal tree species to control pollution effectively beside acting as a shade tree and being a source of food for birds and animals. By plantation of D. sissoo Roxb., mitigative measure at the polluted sites to control generation of particulate matter and the air quality required can be ensured. Our results also confirm that industrial and vehicular air pollution level in Udaipur city is shifting beyond limits.

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Investigating the Real Air Pollution Exchange at Urban Sites Based on Time Variation of Columnar Content of the Components

Cited by 5 publications

References 12 publications

Source apportionment of black carbon and combustion-related CO₂ for the determination of source-specific emission factors

Source apportionment of black carbon and combustion-related CO₂ for the determination of source-specific emission factors

Source apportionment of black carbon and combustion-related CO₂ for the determination of source-specific emission factors

Efficient control of air pollution through plants, a cost-effective alternative: studies on Dalbergia sissoo Roxb

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Investigating the Real Air Pollution Exchange at Urban Sites Based on Time Variation of Columnar Content of the Components

Cited by 5 publications

References 12 publications

Source apportionment of black carbon and combustion-related CO2 for the determination of source-specific emission factors

Source apportionment of black carbon and combustion-related CO2 for the determination of source-specific emission factors

Source apportionment of black carbon and combustion-related CO2 for the determination of source-specific emission factors

Efficient control of air pollution through plants, a cost-effective alternative: studies on Dalbergia sissoo Roxb

Contact Info

Product

Resources

About

Source apportionment of black carbon and combustion-related CO₂ for the determination of source-specific emission factors

Source apportionment of black carbon and combustion-related CO₂ for the determination of source-specific emission factors

Source apportionment of black carbon and combustion-related CO₂ for the determination of source-specific emission factors