Sustainable Energy Efficient Human-Centered Digital Solutions for ESG Megacities Development

Frontiers in Energy Research, Год журнала: 2022, Номер 10

Опубликована: Июль 12, 2022

This study demonstrates algorithms that assist municipal administrations to make the best environmental decisions. The developed by large alpha-class governments with assistance of department agency data analyst. Mathematical and econometric modeling techniques as well optimum solution theories adhered develop a model, criteria is functionality, which reflects balance between maximum profit, comfort in living circumstances, environment, need avoid market failure scenario. ensuing results allow for most optimal administrative decisions, such rate taxes. empirical findings show higher environmental, social governance performance digital finance has improved corporate financing efficiency, influence ESG on energy all at 1% significance level.

Язык: Английский

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Concentration Characteristics and Correlations with Other Pollutants of Atmospheric Particulate Matter as Affected by Relevant Policies

International Journal of Environmental Research and Public Health, Год журнала: 2023, Номер 20(2), С. 1051 - 1051

Опубликована: Янв. 6, 2023

With the increase in global environmental pollution, it is important to understand concentration characteristics and correlations with other pollutants of atmospheric particulate matter as affected by relevant policies. The data presented this paper were obtained at monitoring stations Xi’an, China, years from 2016 2020, spatial distribution mass quantity concentrations atmosphere, well its correlation pollutants, analyzed depth. results showed that annual average PM10 PM2.5 decreased year 2020. 20.3 μg/m3, 47.3 μg/m3. days exceeding standards 82 days, a decrease 66.7%. 40 35.4%. values roughly consistent monthly daily trends. change was U-shaped, double-peak behavior. highest appeared about 8:00~9:00 am 11:00 pm, they greatly human activity. proportion particles 0~1.0 μm 1.94%, 0~2.5 2.00% A multivariate linear regression model calculate established. This study provides reference for comprehensive analysis control air Xi’an even worldwide.

Язык: Английский

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Atmospheric CO2 and 14CO2 observations at the northern foot of the Qinling Mountains in China: Temporal characteristics and source quantification

The Science of The Total Environment, Год журнала: 2024, Номер 920, С. 170682 - 170682

Опубликована: Фев. 5, 2024

Язык: Английский

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The Performance Testing and Analysis of Common New Filter Materials: A Case of Four Filter Materials

Materials, Год журнала: 2024, Номер 17(12), С. 2802 - 2802

Опубликована: Июнь 8, 2024

The complex air environment makes it urgent to build good and safe indoor environments, the study application of new materials have become focus current research. In this study, we tested analyzed structural parameters filtration performances four most commonly used filter in market. results showed that all a trend first increasing then decreasing their efficiency with an increase velocity. was as follows: PTFE > glass fiber nanomaterial electret. reached its maximum when velocity 0.2 m/s. for PM10, PM2.5, PM1.0 higher than other three materials, values 0.87% 24.93%, 1.21% 18.69%, 0.56% 16.03%, respectively. more effective capturing particles smaller 1.0 μm. Within testing range, resistance electret nanomaterial, fitting effect. It is also necessary match during use, well effectiveness blocking microorganisms absorbing toxic gases. Overall, best comprehensive performance, providing data support selection related or synthesis research future.

Язык: Английский

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Comparative Filtration Performance of Composite Air Filter Materials Synthesized Using Different Impregnated Porous Media

Materials, Год журнала: 2023, Номер 16(13), С. 4851 - 4851

Опубликована: Июль 6, 2023

Indoor environment quality is currently a hot research topic. In this study, composite air filter materials were synthesized using different impregnated porous medium materials, and their filtration performance structural parameters analyzed. The results showed that materials' structures changed at the fibers' surfaces when material layers. efficiency of media reached maximum 0.8 m/s velocity, PM10, PM2.5, PM1.0 increased by 1.67~26.07, 1.19~26.96, 1.10~21.98%, respectively. efficiencies reduced graphene oxide for 21.26, 20.22, 18.50% higher, respectively, than those carbon black composite. addition, reducing improved 0 to 1.0 μm particulates was more effective comparison. Filtration resistance comprehensively considered during use provide useful values selection preparation in future.

Язык: Английский

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Characterization and Seasonal Variation of PM_2.5 Composition in Xi’an, Northwest China: Oxygenated and Nitrogenous Organic Aerosol

ACS Earth and Space Chemistry, Год журнала: 2024, Номер 8(7), С. 1370 - 1384

Опубликована: Июнь 20, 2024

Oxygenated (CHO) and nitrogenous (CHON) organic aerosols (OA) are important components of fine particulate matter (PM2.5) in urban environments. To achieve a molecular-level understanding the seasonal variation OA fraction, ambient PM2.5 samples collected from April 2018 to March 2019 Xi'an, Northwest China, were analyzed using an iodide Chemical Ionization Mass Spectrometer combined with Filter Inlet for Gases AEROsols (FIGAERO–CIMS). The set compounds identified by FIGAERO–CIMS was estimated represent 28.6% PM2.5. Evaporation temperatures measured indicated that semivolatile (SVOCs) dominant among analytes. Concentrations CHO (6.01 ± 4.24 μg m–3) CHON (3.17 2.34 increased winter, especially during severe haze episode January 2019. comprised up 75.3 3.2% total detected compounds. average carbon oxidation state (OSC¯) slightly elevated summer samples. mainly nitro-aromatics their abundance substantially which attributed extensive biomass burning demonstrated high levels levoglucosan. Biomass-burning related sources accounted 61.0 19.6% 68.3 21.9% concentration autumn respectively, while secondary formation source species spring (70.1 11.6%) (79.8 7.0%). These results emphasize importance as reveal clear need control used heating Xi'an its surroundings.

Язык: Английский

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Comparison of the Application of Three Methods for the Determination of Outdoor PM2.5 Design Concentrations for Fresh Air Filtration Systems in China

International Journal of Environmental Research and Public Health, Год журнала: 2022, Номер 19(24), С. 16537 - 16537

Опубликована: Дек. 9, 2022

With the increasing popularity of fresh-air filtration systems, methods determining outdoor PM2.5 design concentration have become more important. However, monitoring atmospheric fine particles in China started relatively late, and there are few cities with complete data, obvious regional differences, which led to many problems selection air filters for systems. In this paper, three were analyzed using daily average 31 provincial capital from 2016 2020. Six typical different regions also taken as examples. The advantages disadvantages existing statistical compared analyzed, well corresponding differences value on filter results showed that method mathematical induction was accurate reasonable calculation concentrations. local could be quickly calculated recommended coefficient K annual region, especially small medium-sized without data. should provided based specific divided into values strict conditions normal during use. This would provide a simple effective way select correct practical engineering.

Язык: Английский

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Environmental Impact Assessment (EIA) of CPEC road project by following EIA index approach for sustainability

European Journal of Sustainable Development Research, Год журнала: 2023, Номер 7(3), С. em0220 - em0220

Опубликована: Март 24, 2023

Environmental impact assessment (EIA) is a framework to provide all the socioeconomic and environmental impacts of mega projects for sustainability. Section 12 Pakistan Protection Act (PEPA) 1997 regulates EIA procedure that need be approved by respective Agency (EPA) reduce impacts. This study identified inadequacies linked with procedures CPEC western road project initiated from Rehmani Khel Kot Balian (package-2A). To evaluate selected project, an index has been formulated based on questionnaire responses. The respondents this included experts, social consultants relevant departments. secondary sources involved comprehensive literature review reports project. For testing variables, statistical analysis, i.e., gamma test, correlation factor analysis were used. current revealed vehicle emissions, land degradation, loss biodiversity, atmospheric pollution. calculated was 0.47, which deficiencies among stages, management efficiency index, statement (EISI), mitigation projects. Statistical indicated insignificant relationship variables sustainability will implementation degradation contribute long-term

Язык: Английский

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Environmental Management from the Point of View of the Energy Intensity of Road Freight Transport and Shocks

International Journal of Environmental Research and Public Health, Год журнала: 2022, Номер 19(21), С. 14417 - 14417

Опубликована: Ноя. 3, 2022

The research aimed to identify the directions of rationalization energy intensity road freight transport in context long-term balance drifting economy. study was related case Poland, and its scope spans 8.5 years. drift economy shocks from production process construction, industry, processing sectors were taken into account research. In addition, structural decomposed validated. Twenty-one statistically significant multidirectional varying relationships between consumption confirmed, including 7 14 immediate relationships. leakage has been demonstrated sectors. shock construction sector lowered long run. greatest impact occurred only after 6-12 months slowly stabilized approximately 24 months. On other hand, industry reduced short term but increased term. transformed relatively quickly.

Язык: Английский

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Long-term spatiotemporal evolution and coordinated control of air pollutants in a typical mega-mountain city of Cheng-Yu region under the “dual carbon” goal

Journal of the Air & Waste Management Association, Год журнала: 2023, Номер 73(9), С. 649 - 678

Опубликована: Июль 14, 2023

Clarifying the spatiotemporal distribution and impact mechanism of pollution is prerequisite for megacities to formulate relevant air prevention control measures achieve carbon neutrality goals. Chongqing one dual-core key in Cheng-Yu region as a typical mountain-city China, environmental problems are complex sensitive. This research aims investigate exceeding standard levels spatio-temporal evolution criteria pollutants between 2014 2020. The results indicated that PM10, PM2.5, CO SO2 were decreased significantly by 45.91%, 52.86%, 38.89% 66.67%, respectively. Conversely, concentration pollutant O3 present fluctuating growth found "seesaw" phenomenon it PM. Furthermore, PM highest winter summer, SO2, NO2, CO, showed "U-shaped", an inverted "U-shaped" seasonal variation. concentrations still far behind WHO, 2021AQGs standards. Significant spatial heterogeneity was observed distribution. These great significance "double double reduction" PM2.5 pollution, regional peaking roadmap under climate coordination. Besides, can provide important platform exploring terrain around world references related epidemiological research.Implication: mountain city, Under background "14th Five-Year Plan", construction "Cheng-Yu Dual-City Economic Circle" "Dual-Carbon" goal, this article comprehensively discussed annual excess multiple policy newest international standards (WHO,2021AQG) backgrounds from 2020 Chongqing. suggestions collaborative management discussed. Finally, limitations recommendations also put forward.Clarifying cities study coordination action plan sustained improvement quality.In addition, advanced our understanding terrain. promote China national strategic economic circle build beautiful west. Moreover, provides scientific insights local policymakers guide smart urban planning, industrial layout, energy structure, transportation planning improve quality throughout region. conducive future other regions even with world.

Язык: Английский

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