scholarly journals A Study on a High-Purity Filter System of an Air Charger for an Air Respirator

2021 ◽  
Vol 35 (5) ◽  
pp. 45-50
Author(s):  
Si-Min Sung ◽  
Jung-Mo Yang ◽  
Tae-yul Park ◽  
Dae-Jun Ji ◽  
Jaesung Oh ◽  
...  
Keyword(s):  
Air Quality ◽  
High Purity ◽  
Environmental Problems ◽  
Performance Standard ◽  
Filter System ◽  
Pollutant Discharge ◽  
Standard Range

The air charged through the air charger must be pure and free from impurities; hence, the role of a filter that removes pollutants, such as moisture, oil, and carbides is very important. The lifespan of the filter is approximately 50 h, and if exceeded, the purification function decreases rapidly. Therefore, it must be replaced periodically. However, economic and environmental problems occur in the process of replacing the filter. This study investigated the extension of the filter lifespan (60 h) and enhancement of the purification function. An auto drain system was installed. The pollutant discharge, maximum noise, and lifespan were confirmed through experiments and commissioned inspections to check the performance. The compatibility of the pollutant discharge function and the structure of the auto drain system was verified by checking the discharge of pollutants. In addition, the maximum noise was certified to be less than 80 dB according to the performance-standard. Finally, the charged air quality was analyzed after 60 h of use, and all the analyzed values were confirmed to be within the performance-standard range.

PERAN MASYARAKAT TERHADAP PEMBAYARAN RETRIBUSI SAMPAH DI KOTA SAMARINDA

2018 ◽  
Vol 2 (1) ◽  
pp. 33
Author(s):  
Abd Rachim AF,
Keyword(s):  
Waste Management ◽  
Population Growth ◽  
Frequency Analysis ◽  
Urban Areas ◽  
Relative Frequency ◽  
Environmental Problems ◽  
Living Standards ◽  
The Public ◽  
And Behavior

One of the environmental problems in urban areas is the pollution caused by garbage. The waste problem is caused by various factors such as population growth, living standards changes, lifestyles and behavior, as well as how the waste management system. This study aims to determine how the role of society to levy payments garbage in Samarinda. This research was descriptive; where the data is collected then compiled, described and analyzed used relative frequency analysis. The participation of the public to pay a "levy junk", which stated to pay 96.67%, for each month and the rates stated society cheap, moderate and fairly, respectively 46.08%, 21.21%, 21.04%. Base on the data , the role of the community to pay "levy junk" quite high.

GREEN BONDS AS A NEW FINANCIAL INSTRUMENT

2020 ◽  
Vol 3 (7) ◽  
pp. 98-102
Author(s):  
M. V. DUBROVA ◽  
◽  
N. N. ZHILINA ◽  
Keyword(s):  
Raw Materials ◽  
Financial Burden ◽  
Environmental Problems ◽  
Green Economy ◽  
Non Profit ◽  
The Public ◽  
Economic Problems ◽  
Green Finance ◽  
Non Profit Organizations

The relevance of the article is determined by the fact that in Russia there is no effective mechanism of state support for the activities of non-profit organizations in the field of “green Finance”. The role of non-profit organizations is leveled, which can become a serious help in solving economic problems, in particular, the problems of recycling and processing of secondary raw materials, the placement of industrial waste and household garbage, and landscaping of large megacities. The main financial burden in the field of “green economy” falls on States and large enterprises. Meanwhile, we cannot ignore the important role of non-profit organizations that can not only draw attention to environmental problems to the public, but also offer their own measures to solve environmental problems. In this regard, it becomes relevant to consider the participation of non-profit organizations in the implementation of environmental projects by attracting “green Finance”.

POTENTIAL DEVELOPMENT OF «GREEN BONDS» IN THE RUSSIAN ECONOMY

2020 ◽  
Vol 1 (8) ◽  
pp. 119-123
Author(s):  
M. V. DUBROVA ◽  
◽  
N. N. ZHILINA ◽  
Keyword(s):  
Raw Materials ◽  
Financial Burden ◽  
Environmental Problems ◽  
Green Economy ◽  
Non Profit ◽  
Russian Economy ◽  
Green Finance ◽  
Potential Development ◽  
Non Profit Organizations

he relevance of the article is determined by the fact that in Russia there is no effective mechanism of state support for the activities of non-profit organizations in the field of «green Finance». The role of non-profit organizations is leveled, which can become a serious help in solving economic problems, in particular, the problems of recycling and processing of secondary raw materials, the placement of industrial waste and household garbage, and landscaping of large megacities. The main financial burden in the field of «green economy» falls on States and large enterprises. Meanwhile, we cannot ignore the important role of non-profit organizations that can not only draw attention to environmental problems to the public, but also offer their own measures to solve environmental problems. In this regard, it becomes relevant to consider the participation of non-profit organizations in the implementation of environmental projects by attracting «green Finance».

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

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.

Imagining Technology and Environmental Law

2016 ◽  
Author(s):  
Elizabeth Fisher
Keyword(s):  
Potential Role ◽  
Environmental Law ◽  
Environmental Problems ◽  
Limited Resources ◽  
Sociotechnical Imaginaries ◽  
Law And Technology ◽  
Starting Point ◽  
Chemicals Regulation ◽  
The Commons

Understandings of environmental law and technology are often co-produced as part of distinctive sociotechnical imaginaries. This essay explores this phenomenon by showing how Hardin’s famous essay, the ‘Tragedy of the Commons’, is capable of being interpreted in two different ways, which provide divergent visions of the potential role of environmental law and technology in addressing environmental problems. The first, and more popular, interpretation characterizes law and technology as instruments for bringing about shifts in morality in light of limited resources. A different reading of Hardin’s essay portrays law and technology in more constitutive terms. Identifying these different characterizations provides a starting point for a richer and more nuanced debate about the interaction between environmental law and technology. This is illustrated by an example from chemicals regulation.

scholarly journals A new diagnostic for tropospheric ozone production

2017 ◽  
Author(s):  
Peter M. Edwards ◽  
Mathew J. Evans
Keyword(s):  
Air Quality ◽  
Tropospheric Ozone ◽  
Transport Model ◽  
Chemical Transport ◽  
Ozone Production ◽  
Chemical Transport Model ◽  
Organic Species ◽  
Earth’S Climate ◽  
Oxidation Of Organics

Abstract. Tropospheric ozone is important for the Earth’s climate and air quality. It is produced during the oxidation of organics in the presence of nitrogen oxides. Due to the range of organic species emitted and the chain like nature of their oxidation, this chemistry is complex and understanding the role of different processes (emission, deposition, chemistry) is difficult. We demonstrate a new methodology for diagnosing ozone production based on the processing of bonds contained within emitted molecules, the fate of which is determined by the conservation of spin of the bonding electrons. Using this methodology to diagnose ozone production in the GEOS-Chem chemical transport model, we demonstrate its advantages over the standard diagnostic. We show that the number of bonds emitted, their chemistry and lifetime, and feedbacks on OH are all important in determining the ozone production within the model and its sensitivity to changes. This insight may allow future model-model comparisons to better identify the root causes of model differences.

Measuring the Role of Urban Vegetation on Air Quality: The Case Study of the Real Bosco di Capodimonte in Naples, Italy

2017 ◽  
pp. 13-17 ◽  
Author(s):  
Raffaela Esposito ◽  
Gabriele Guidolotti ◽  
Emanuele Pallozzi ◽  
Corrado Leone ◽  
Michele Mattioni ◽  
...  
Keyword(s):  
Air Quality ◽  
Urban Vegetation ◽  
The Real

scholarly journals Legal regulation of solving problems of pollution prevention Oceans

2020 ◽  
Author(s):  
S.V. Strygina
Keyword(s):  
Social Responsibility ◽  
International Cooperation ◽  
Marine Environment ◽  
Pollution Prevention ◽  
Environmental Problems ◽  
Legal Regulation ◽  
Legal Basis ◽  
National Legislation ◽  
The World

The article analyses the legal basis of activities of cleaning up the world oceans. It is emphasized that they are complex. The role of the UN in solving environmental problems is also highlighted. The need for international cooperation in the protection of the marine environment is mentioned. The article raises the problem of improving both international and national legislation and eliminating gaps in the law. The importance of social responsibility of business is emphasized.

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