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In the evolution process of building construction accidents, there are key nodes of risk change. This paper aims to quickly identify the key nodes and quantitatively assess the node risk. Furthermore, it is essential to propose risk accumulation assessment method of building construction.

Authors analyzed 419 accidents investigation reports on building construction. In total, 39 risk factors were identified by accidents analysis. These risk factors were combined with 245 risk evolution chains. Based on those, Gephi software was used to draw the risk evolution network model for building construction. Topological parameters were applied to interpret the risk evolution network characteristic.

Combining complex network with risk matrix, the standard of quantitative classification of node risk level is formulated. After quantitative analysis of node risk, 7 items of medium-risk node, 3 items of high-risk node and 2 items of higher-risk nodes are determined. The application results show that the system risk of the project is 44.67%, which is the high risk level. It can reflect the actual safety conditions of the project in a more comprehensive way.

This paper determined the level of node risk only using the node degree and risk matrix. In future research, more node topological parameters that could be applied to node risk, such as clustering coefficients, mesoscopic numbers, centrality, PageRank, etc.

This article can quantitatively assess the risk accumulation of building construction. It would help safety managers could clarify the system risk status. Moreover, it also contributes to reveal the correspondence between risk accumulation and accident evolution.

This study comprehensively considers the likelihood, consequences and correlation to assess node risk. Based on this, single-node risk and system risk assessment methods of building construction systems were proposed. It provided a promising method and idea for the risk accumulation assessment method of building construction. Moreover, evolution process of node risk is explained from the perspective of risk accumulation.

Higher education institutions are widely known both for their promotion to education for sustainable development (ESD) and for their contribution as living labs to urban management strategies. As for strategies, smart and learning campuses have recently gained significant attention. This paper aims to report an air quality monitoring experience with focus on the smart and learning campus and discuss its implications for the university context with regard to ESD and sustainable development goal (SDG) integration.

The air quality monitoring was held at the main campus of University of Passo Fundo and focused on three pollutants directly related to vehicle emissions. The air quality index (AQI) was presented on a website, along with information regarding health problems caused by air pollution, main sources of emissions and strategies to reduce it.

The results showed how the decrease in air quality is related to the traffic emissions and the fact that exposing students to a smart and learning environment could teach them about sustainability education.

This case study demonstrated how monitoring air quality in a smart environment could highlight and communicate the impact of urban mobility on air quality and alerted to the need for more sustainable choices, including transports.

This paper contributes to the literature by showing the potential of a smart-learning campus integration and its contribution towards the ESD and the UN SDGs.

The purpose of this paper is to discuss how long term risk prevention and civil protection may enter in university programs for environmental engineers and urban and regional planners.

First the distinction between long term risk prevention and emergency preparedness is made, showing that while the first has entered in university programs the second is still considered too practical. The opposite is sustained by the author, providing as an argument the demand coming from the same civil protection officials who are aware of the capabilities that are required to face large emergencies. They want to learn how to make recourse to the large knowledge acquired in risk studies and to experiences and models so as to forecast the event's potential development.

The paper describes how this expertise has been enacted in special programs designed for EU and Italian professionals in the field of civil protection. The development of an external emergency plan for a hazardous installation in the vicinity of Bergamo (Italy) has been also described as a good example of training and knowledge acquirement in the field.

The examples provided above show the importance of matching practical experience gained on the ground with theoretical approaches, enhancing the capabilities to recognise links among various systems as well as value different types of knowledge in a transdisciplinary fashion.

The inevitable link between risk related issues and transdisciplinary approaches is discussed, indicating how a relatively new field of study may enter the academic arena, opening to new types of expertise and new forms of teaching.

The COVID-19 pandemic has led to changes in academic routines. These changes have also contributed to an increase in the number of papers submitted to journals, citations and, ultimately, to changes in metrics. This study aims to address a gap between theory and practice, analysing the changes in the impact factor (IF) of a sample of 30 environment/sustainability-related journals, in the face of the COVID-19 pandemic.

The study used an expert-driven literature analysis and an assessment of a selected sample of 30 environment/sustainability-related journals’ increased trends.

The unprecedented trend observed when analysing the results obtained in the IF of environment/sustainability-related journals contribute to the body of knowledge on this topic, allowing us to understand how specifically the COVID-19 pandemic has influenced scientific publishing, despite the restrictions imposed by lockdowns and access to research knowledge and facilities.

Based on a sample of 30 environment/sustainability-related journals, this study can highlight lessons learned from the COVID-19 pandemic, suggesting specific measures which may be addressed to contribute to upkeep levels of publishing in the environment/sustainability field covered in this study.

This study will contribute to setting the stage for additional research on the influences of the COVID-19 pandemic on scientific publishing’s impact in environment/sustainability areas of knowledge. The implications of this research will allow us to set the basis for more extensive research in other areas of knowledge.

To the best of the authors’ knowledge, this study is unique, as it addresses the implications of the COVID-19 pandemic in 30 considered exemplary environment/sustainability-related journals, the main research area of all the authors involved in this publication.

Various impacts of direct venting of natural gas into the environment, both in the upstream and downstream petroleum operations, often compel the chemical engineer to specify air pollution control equipment for installation on new and existing platforms/facilities. Flares, a special class of such equipment, are considered in this paper. The major types of flares used in the oil industry are reviewed and the principles guiding their operation and performance discussed. Information which would aid the choice of flare system for new applications is also discussed.

This article aims to show how communities with severe river flooding can develop sustainable flood plans that remediate environmental problems caused by previous river straightening and other structural flood controls.

The article builds on a case study of the nationally recognized Napa River Flood Protection Project (USA), which incorporates an ecological living river strategy and builds on strong community participation to restore a river and its floodplain. After discussing the drawbacks of structural flood control measures, and especially of river straightening, reviews the contents of the Napa Flood Project and the public participation process necessary for its design, approval and implementation.

The key lessons learned from Napa's flood project are that: undoing past structural works is difficult but feasible; ecological criteria can and should be used to design modern flood projects; involvement of a wide and diverse group of stakeholders is crucial to developing and implementing an environmentally sustainable flood management project; and the US Army Corps of Engineers can work with communities and depart from its typical, structural flood control approaches.

Information on straightened rivers is extremely limited. Furthermore, this study focuses on flood planning for US rivers, and may therefore be less useful elsewhere in the world where the frequency of river straightening may differ.

This case study provides a critique on river straightening, which is a poorly documented but fairly frequent approach to flood control. This article helps to fill gaps in the knowledge of how communities can, and are, addressing environmental concerns associated with flood controls and river straightening.

The German Chamber of Industry and Commerce in the United Kingdom and the Rheinisch‐Westfälischer Technischer Uberwachungs‐Verein e.V. (RWTUV) (Technical Inspectorate and Information Service) joined forces to make a further contribution towards the promotion of British‐German trade, and have accordingly set up a special information service. In the safety engineering and environmental protection fields, the agreement between these two bodies envisages the provision of information, for both German and British companies, on the applicability of both British and German rules and regulations. To this end, an RWTUV Information Bureau has been set up in partnership with the German Chamber of Industry and Commerce in London. It is at the disposal of all interested companies, and its address is:

This paper aims to evaluate of the microalgae potential for commercial application, in particular to conduct experimental study of biogenic compounds removal from sewage waters by microalgae, and to calculate economical benefits from biofertizers and biofuel production.

Experimental study in the concentration change of nitrogen and phosphorus compounds in the cultivation of Chlorella Vulgaris microalgae in various types of sewage water was carried out.

The efficiency wastewater treatment by microalgae was confirmed. The economic benefit from the biomass utilization as biofuel production was calculated.

Implementation of wastewater treatment technology with biomass recycling for biofuel and biofertilizers production will minimize the impact on the environment.

As a results of experimental studies, the ability of microalgae to reduce biogenic elements in wastewater was confirmed. Microalgae can be used both for wastewater treatment to biogenic elements removal, such as phosphorous and nitrogen compounds, and biofuel, biofertilizers production. Prospects of the commercial use of microalgae are obvious. They are specially adapted to an environment dominated by viscous forces.

Clarifying the risk evolution mechanism of housing construction for work-safety management is essential. Existing studies have inadequately discussed the risk-accumulation process in housing construction. Therefore, this study aimed to use the complex network theory and risk allocation mechanisms to explore the evolution of risk factors.

The authors analysed a database of housing construction accidents in China from 2015 to 2020 to identify risk factors. Moreover, the causal relationship between risk factors was determined through a systematic analysis of the logical sequence of risk factors. A complex network was used to construct a risk network for housing construction accidents (RNHCA).

The risk matrix method was used to define the factor risk threshold, and a risk value was assigned based on the correlation between risk factors. This contributes to the examination of the evolution mechanism of risk networks in the process of risk factor transmission. The case verification results show that the RNHCA quantitative assessment model can better evaluate the system risk status of housing construction accidents. Furthermore, this model can identify the key risk factors and risk chains with high risk in the evolution of the risk network.

Accident investigation reports need to be classified and processed to analyse the evolution law of risk networks under different scales of construction project, such as high-rise buildings, middle-rise buildings, and low-rise buildings.

This study clarified the risk evolution process of complex systems in housing construction and provided a new method for analysing accidents.

This study clarifies the risk value allocation of risk factors in the transmission process and reveals the process of risk factor evolution in housing construction. This study explains the individual risk factors that form a systemic risk through the transmission chain. Moreover, this paper clarified the transformation relationship between system risk and accidents. The paper also provided a new perspective for risk analysis.

The world society as a whole and Ukraine are realizing that climate change and decarbonization are critical issues. This study aims to determine whether the aviation and transportation industries in Ukraine have rearranged their priorities as a result of this investigation. The process of decarbonization and adaptation begins with a legislative point of view and then moves on to technology, improvements, infrastructure, energy and emissions stages to meet the primary goals.

An analysis of the content of the literature about decarbonization and the legislation and application processes for airport de-carbonization in Ukraine. The study focuses on the landing and take-off cycle of the airports. The statistics on the transportation of the Ukrainian territory have been looked at over time to determine whether or not there have been any shifts.

There are significant reduction figures found in the Poltava region. Double-figure emissions reductions in four years of series are 5.9%, 41.0% and 19.3%, in the respective years of 2018, 2019 and 2020, which is a 55.3% reduction compared with 2020 to 2017.

Because the transportation industry and aviation generate a significant amount of carbon dioxide, steps must be taken to cut emissions. The decarbonization process ought to proceed in the form of a series of actions to achieve carbon reduction goals with a broader range of participants. In addition, an aviation subsidy for biofuels may be required to initiate the shift by having the taxation change.

As far as the literature surveys, to the best of the authors’ knowledge, this is the first comprehensive Ukrainian decarbonization analysis that considers legislation, technology, improvements, infrastructure, energy and emissions in addition to just those four categories.