Response of air quality to short-duration high-strength human tourism activities at a natural scenic spot: a case study in Zhangjiajie, China

This study presents an explosion-resistant hybrid system containing a steel slab and a carbon fiber-reinforced polymer (CFRP) frame. CFRP, which is a high-strength material, acts as an impact reflection part. Steel slab, which is a high-ductility material, plays a role as an impact energy absorption part. Based on the elastoplastic behavior of steel, a numerical model is proposed to simulate the dynamic responses of the hybrid system under the air pressure from an explosion. Based on this, a case study is conducted to analyze and identify the optimal design of the proposed hybrid system, which is subjected to an impact load condition. The observations from the case study show the optimal thicknesses of 8.2 and 7 mm for a steel slab and a ϕ100 mm CFRP pipe for the hybrid system, respectively. In addition, the ability of the proposed hybrid system to resist an uncertain explosion is demonstrated in the case study based on the reliability methodology.

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Air quality evaluation during COVID-19 in Avellino (South Italy): A significant case study to drive an urgent policy decision making

Environmental Research ◽

10.1016/j.envres.2021.111803 ◽

2021 ◽

pp. 111803

Author(s):

Raffaele Cucciniello ◽

Letizia Raia ◽

Ermanno Vasca

Keyword(s):

Decision Making ◽

Air Quality ◽

Quality Evaluation ◽

Policy Decision ◽

South Italy ◽

Significant Case ◽

Policy Decision Making

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Sensitivity of air quality modelling to different emission inventories: a case study over Europe

Atmospheric Environment X ◽

10.1016/j.aeaoa.2021.100111 ◽

2021 ◽

pp. 100111

Author(s):

Philippe Thunis ◽

Monica Crippa ◽

Cornelis Cuvelier ◽

Diego Guizzardi ◽

Alexander de Meij ◽

...

Keyword(s):

Air Quality ◽

Emission Inventories ◽

Air Quality Modelling

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From Black to Blue Skies: Civil Society Perceptions of Air Pollution in Shanghai

The China Quarterly ◽

10.1017/s0305741021000588 ◽

2021 ◽

pp. 1-22

Author(s):

Amanda K. Winter ◽

Huong Le ◽

Simon Roberts

Keyword(s):

Air Pollution ◽

Civil Society ◽

Air Quality ◽

Qualitative Case Study ◽

Field Research ◽

Ecological Civilization ◽

Civil Society Participation ◽

Quality Indexes

Abstract This paper explores the perception and politics of air pollution in Shanghai. We present a qualitative case study based on a literature review of relevant policies and research on civil society and air pollution, in dialogue with air quality indexes and field research data. We engage with the concept of China's authoritarian environmentalism and the political context of ecological civilization. We find that discussions about air pollution are often placed in a frame that is both locally temporal (environment) and internationally developmentalist (economy). We raise questions from an example of three applications with different presentations of air quality index measures for the same time and place. This example and frame highlight the central role and connection between technology, data and evidence, and pollution visibility in the case of the perception of air pollution. Our findings then point to two gaps in authoritarian environmentalism research, revealing a need to better understand (1) the role of technology within this governance context, and (2) the tensions created from this non-participatory approach with ecological civilization, which calls for civil society participation.

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