Temporal variations of black carbon, carbon monoxide, and carbon dioxide in Mexico City: Mutual correlations and evaluation of emissions inventories

Liñán-Abanto, Rafael N.; Salcedo, D.; Arnott, P.; Paredes-Miranda, G.; Grütter, Michel; Peralta, Oscar; Carabalí, Giovanni; Serrano-Silva, Nancy; Ruíz-Suárez, L. G.; Castro, T.

doi:10.1016/j.uclim.2021.100855

Cited by 12 publications

(9 citation statements)

References 28 publications

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“…Considering the widespread geographical scope and large differences in economic development, we select BRI countries to focus on. Our study finds that there are indeed differences in BRI countries; there are also differences within various economic cooperation organizations [17,20]. Compared to other organizations, the BRI has a greater degree of variation.…”

Section: Discussionmentioning

confidence: 53%

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Differences of Carbon Emission Efficiency in the Belt and Road Initiative Countries

Sun

Bai

2022

Energies

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Carbon emission efficiency, which is mainly affected by economic output, energy efficiency and energy structure, is the effect of carbon emissions generated in economic activities. Improving carbon emission efficiency and narrowing regional differences are very important for green development in Belt and Road Initiative regions with developing countries as the main body. The existing literature mostly uses the Theil index to study the temporal differences in carbon emission efficiency, but spatial differences and the reasons for the differences have rarely been examined. This paper measures the differences of carbon emission efficiency using the Theil index and examines the reasons based on the Logarithmic Mean Divisia index (LMDI) method in five groups of 60 Belt and Road Initiative countries. The results show that the Theil index of carbon emission efficiency in these countries is 0.196, with an intra-group difference of 0.165 and an inter-group difference of 0.031. Between most of the groups, energy efficiency is the dominant factor affecting carbon emission efficiency differences, especially between East Asia and Central and Eastern Europe, South Asia and East Asia. Between most of the countries with the highest and lowest carbon emission efficiency in the same group, such as Singapore and Vietnam in East Asia, energy efficiency is still the primary factor affecting the differences. Only some differences between a few groups, countries and sectors have been caused mainly by energy structures. Therefore, improving energy efficiency is the first way for those countries with low carbon emission efficiency to catch up other countries with high carbon emission efficiency, followed by improving the energy structure.

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Section: Discussionmentioning

confidence: 53%

“…This total-factor method focuses on the contribution of total factors with the results more comprehensive [14]. Existing studies of carbon emission efficiency pay close attention to the temporal changes [19,20] and spatial differences [21,22] in one country or between different countries.…”

Section: Introductionmentioning

confidence: 99%

Differences of Carbon Emission Efficiency in the Belt and Road Initiative Countries

Sun

Bai

2022

Energies

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“…On the other hand, both CO and CO 2 showed the same diurnal patterns as BC. This was expected since the sources of CO and CO 2 were similar to BC and their concentrations at WLG were influenced by up- and down-slopes as well as BLH ( García-Franco et al, 2018 ; Liñán-Abanto et al, 2021 ; X. Zhang et al, 2015 ).…”

Section: Resultsmentioning

confidence: 86%

“…Furthermore, we utilized ΔBC/ΔCO 2 (the slope of BC-CO 2 ) and ΔBC/ΔCO (the slope of BC-CO) to determine the contributions of the sources, and the results were showed in Fig. 4 b and c, which can reflect the source of BC to some extent ( Table 3 ) ( Liñán-Abanto et al, 2021 ; Verma et al, 2010 ). During the sampling period, ΔBC/ΔCO 2 and ΔBC/ΔCO were 0.0633 ± 0.0007 μg m −3 ppm −1 (R 2 = 0.79, p < 0.05) and 0.0027 ± 0.0001 μg m −3 ppb −1 (R 2 = 0.78, p < 0.05) respectively, responding that the sources of BC at WLG are transmitted gasoline or diesel and domestic coal combustion.…”

Section: Resultsmentioning

confidence: 99%

Decrease of atmospheric black carbon and CO2 concentrations due to COVID-19 lockdown at the Mt. Waliguan WMO/GAW baseline station in China

Xie¹,

Lin²,

Ren³

et al. 2022

Environmental Research

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“…The coherent acoustic noise is suppressed with filters at the pressure nodes of the resonator. The laser wavelengths selected for the photoacoustic spectrometers avoid absorption of gaseous atmospheric light, with a gaseous absorption coefficient of 0.1 Mm -1 (Liñán-Abanto et al, 2021). The instruments have also a wide-angle integrating reciprocal nephelometer to measure the scattering coefficient of light.…”

Section: Particle Optical Propertiesmentioning

confidence: 99%

Carbonaceous particles and PM2.5 optical properties in Mexico City during the ACU15 campaign

Santiago-de la Rosa,

Prieto,

Pavia

et al. 2024

Atm.

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We measured the optical properties of aerosols with two photoacoustic spectrometers operating at 532 and 870 nm wavelengths and sampled PM2.5 to analyze the organic carbon (OC) and elemental carbon (EC) content. The measuring site was in the southwest corner of Mexico City. We sorted the data by OC/EC ratios and calculated four mass absorption efficiencies (MAEs) for each wavelength with linear regressions. The MAEs ranged from 2.27 to 19.75 and 2.03 to 15.26 m2 g–1 at 532 and 870 nm, respectively, with determination coefficients above 0.88, showing that the amount of OC modifies the absorption properties of particles, sometimes underestimating or overestimating the black carbon concentration. It is possible to choose the MAE based on the daily median O3 concentration when there is no information about the EC and OC composition.

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Temporal variations of black carbon, carbon monoxide, and carbon dioxide in Mexico City: Mutual correlations and evaluation of emissions inventories

Cited by 12 publications

References 28 publications

Differences of Carbon Emission Efficiency in the Belt and Road Initiative Countries

Differences of Carbon Emission Efficiency in the Belt and Road Initiative Countries

Decrease of atmospheric black carbon and CO2 concentrations due to COVID-19 lockdown at the Mt. Waliguan WMO/GAW baseline station in China

Carbonaceous particles and PM2.5 optical properties in Mexico City during the ACU15 campaign

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