scholarly journals VERTICAL GARDEN : PENGHIJAUAN UNTUK MENDUKUNG SMART LIVING DI KOTA YOGYAKARTA

2020 ◽  
Vol 5 (1) ◽  
pp. 41
Author(s):  
Aviana Vety Jayanti ◽  
Eko Priyo Purnomo ◽  
Aulia Nurkasiwi
Keyword(s):  
Air Quality ◽  
Negative Impact ◽  
Human Life ◽  
Vacant Land ◽  
Smart Environment ◽  
City Development ◽  
Noise Levels ◽  
Smart Living ◽  
The Impact ◽  
The City

Abstract: Increasingly dynamic city development without being accompanied by the provision of vacant land for reforesting has a negative impact on the environment. Increasing air quality and noise levels make a city have to prepare solutions to solve problems that have an impact on the environment of human life. The concept of vertical garden emerged as an alternative greening that can be applied in cities with a level of availability of narrow vacant land such as the city of Yogyakarta. The impact of applying this concept can overcome problems such as decreased air quality due to pollution. This study uses qualitative methods to describe how the effect of applying vertical gardens as an alternative to greening in supporting smart environments.Keywords: Smart Environment, Vertical Garden, Environment;

scholarly journals The State of Air Pollution as a Factor Determining the Assessment of a City’s Tourist Attractiveness—Based on the Opinions of Polish Respondents

2020 ◽  
Vol 12 (4) ◽  
pp. 1466 ◽  
Author(s):  
Aleksandra Łapko ◽  
Aleksander Panasiuk ◽  
Roma Strulak-Wójcikiewicz ◽  
Marek Landowski
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Negative Impact ◽  
Subjective Assessment ◽  
The State ◽  
City Tourism ◽  
Number Of Factors ◽  
Travel Decisions ◽  
The Impact ◽  
The City

Cities are multifunctional by definition, and an increasingly significant function is the tourist function. City tourism is one of the most dynamically developing forms of tourism. Tourists’ decisions regarding choosing a destination are influenced by a number of factors determining the subjective assessment of the tourist attractiveness of a given city, and one of them may be the state of air pollution, as it can have a negative impact on the health of both city dwellers and tourists. This article is an attempt to determine whether potential tourists consider information about the level of a city’s air quality in the assessment of its tourist attractiveness and the impact of this information on their travel decisions. The article presents the results of surveys conducted among a group of 509 respondents from Poland. On this basis, an assessment was made of the extent to which information on the condition of air quality in a given city is relevant for persons planning a tourist trip. In the conducted research, decisions regarding both business and private trips were evaluated. In addition, information on factors that could increase the respondents’ interest in the condition of air quality in the city of the intended trip (e.g., trip with children, trip length) was collected. Due to the fact that tourism is a significant source of income for many cities, the research results presented in the article may be of significant importance for entities creating the urban tourist product and responsible for its management. The article also draws attention to the fact that reducing pollution in cities can contribute to increases in their tourist attractiveness.

Urbanization of fauna on the example of marsh frog (Pelophylax ridibundus)

2015 ◽  
Vol 26 (3-4) ◽  
pp. 116-123
Author(s):  
A. P. Korzh ◽  
T. V. Zahovalko
Keyword(s):  
Urban Areas ◽  
Cognitive Modeling ◽  
Negative Impact ◽  
Natural Populations ◽  
Cellular Level ◽  
Anthropogenic Factors ◽  
Migration Routes ◽  
Corrective Effect ◽  
The Impact ◽  
The City

Recently, the number of published works devoted to the processes of synanthropization of fauna, is growing like an avalanche, which indicates the extreme urgency of this theme. In our view, the process of forming devices to coexist with human and the results of his life reflects the general tandency of the modern nature evolution. Urbanization is characteristic for such a specific group of animals like amphibians, the evidence of which are numerous literature data. Many researchers use this group to assess the bioindicative quality of the environment. For this aim a variety of indicators are used: from the cellular level of life of organization up to the species composition of the group in different territories. At the same time, the interpretation of the results is not always comparable for different areas and often have significantly different interpretations by experts. Urban environment, primarily due to the contamination is extremely aggressive to amphibians. As a consequence, the urban populations of amphibians may be a change in the demographic structure, affecting the reproductive ability of the population, the disappearance of the most sensitive species or individuals, resizing animals, the appearance of abnormalities in the development, etc. At the same time play an important amphibians in the ecosystems of cities, and some species in these conditions even feel relatively comfortable. Therefore, it is interesting to understand the mechanisms of self-sustaining populations of amphibians in urban environments. To assess the impact of natural and anthropogenic factors on the development of amphibian populations were used cognitive modeling using the program Vensim PLE. Cognitive map of the model for urban and suburban habitat conditions were the same. The differences concerned the strength of connections between individual factors (migration, fertility, pollution) and their orientation. In general, factors like pollution, parasites, predators had negative impact on the population, reducing its number. The birth rate, food and migration contributed to raising number of individuals. Some of the factors affected on the strength to of each other as well: the majority of the factors affected the structure of the population, had an influence on the fertility. Thanks to it the model reflects the additive effect of complex of factors on the subsequent status of the population. Proposed and analyzed four scenarios differing strength and duration of exposure. In the first scenario, a one-time contamination occurs and not subsequently repeated. The second and third scenario assumes half board contamination, 1 year (2 scenario) and two years (scenario 3). In the fourth scenario, the pollution affected the population of amphibians constantly. In accordance with the results of simulation, much weaker than the natural populations respond to pollution - have them as an intensive population growth and its disappearance at constant pollution is slow. Changes to other parameters of the model showed that this pollution is the decisive factor -only the constant action leads to a lethal outcome for the populations. All other components of the model have a corrective effect on the population dynamics, without changing its underlying trand. In urban areas due to the heavy impact of pollution maintaining the population is only possible thanks to the migration process – the constant replenishment of diminishing micropopulations of natural reserves. This confirms the assumption that the form of existence metapopulations lake frog in the city. In order to maintain the number of amphibians in urban areas at a high level it is necessary to maintain existing migration routes and the creation of new ones. Insular nature of the placement of suitable habitats in urban areas causes the metapopulation structure of the types of urbanists. Therefore, the process of urbanization is much easier for those species whicht are capable of migration in conditions of city. In the initial stages of settling the city micropopulationis formed by selective mortality of the most susceptible individuals to adverse effects. In future, maintaining the categories of individuals is provided mainly due to migration processes metapopulisation form of the species of existence is supported). It should be noted that the changes in the previous levels are always saved in future. In the case of reorganizations of individuals we of morphology can assume the existence of extremely adverse environmental conditions that threaten the extinction of the micropopulations. 

TO THE QUESTION OF THE IMPACT OF CLIMATE CHANGE ON THE ECOLOGICAL STATE OF ARTIFICIAL PLANTATIONS OF PITSUNDSKAYA PINE IN THE SEASIDE AREA OF GELENDZHIK

2017 ◽  
Author(s):  
Elizaveta Derevenets ◽  
Elizaveta Derevenets
Keyword(s):  
Negative Impact ◽  
Standard Technique ◽  
Negative Influence ◽  
Exhaust Gases ◽  
The Road ◽  
Industrial Enterprises ◽  
Federal Highway ◽  
On The Road ◽  
The Impact ◽  
The City

Gelendzhik is the resort town, there aren't a lot of industrial enterprises here. The main pollutant is transport. The work purpose is the assessment of a condition of the artificial landings of a pine located along the Federal highway "Don" and landings, which is nearly the sea coast. Researches were conducted to a standard technique of the General vital state (A. S. Bogolyubov). The assessment of a condition of pines was carried out during 6 years: from 2010 to 2015. For carrying out research we used 6 experimental grounds on the Markotkhsky spine and 2 control grounds within the town. We investigated 24 trees on each platform, middle age of the trees were 30 - 40 years. Results. 1. The condition of trees in the pine forests located in immediate proximity with the Federal highway "Don" (No. 1, 2, 3) is unsatisfactory. As even weak influences of the majority of atmospheric gaseous pollutants (sulphurous gas, nitrogen oxides, etc.) give effect of a necrosis and hloroz of pine needles, the condition of pines is connected with technogenic pollution. So near the Federal highway "Don" the air environment is strongly polluted by exhaust gases. Information of 2012 confirm that negative influence of the route on Markotkh's vegetation decreases at reduction of load of the route. 2. On the sites located above on a slope (No. 4,5,6) thanks to remoteness and the wind mode intensity of influence of pollutants is lower and a condition of pines the quite satisfactory. 3. Trees on the sites located near the sea (No. 7,8) are in a good shape. Small deterioration of a state is noted in very droughty years. Conclusion. Results of six years' research show that the condition of the plantings which are in close proximity with the road worsens. It is explained by increase in intensity of the movement on the road, especially during a resort season. Gelendzhik is the city with a good ecological shape, but the damage to environment is already caused. If not to take measures, we can lose a unique part of the nature in the future, recreate it will be impossible. Measures of reduction of negative impact of exhaust gases were offered. Results of researches are transferred to ecological department of the City administration of Gelendzhik.

TO THE QUESTION OF THE IMPACT OF CLIMATE CHANGE ON THE ECOLOGICAL STATE OF ARTIFICIAL PLANTATIONS OF PITSUNDSKAYA PINE IN THE SEASIDE AREA OF GELENDZHIK

2017 ◽  
Author(s):  
Elizaveta Derevenets ◽  
Elizaveta Derevenets
Keyword(s):  
Negative Impact ◽  
Standard Technique ◽  
Negative Influence ◽  
Exhaust Gases ◽  
The Road ◽  
Industrial Enterprises ◽  
Federal Highway ◽  
On The Road ◽  
The Impact ◽  
The City

Gelendzhik is the resort town, there aren't a lot of industrial enterprises here. The main pollutant is transport. The work purpose is the assessment of a condition of the artificial landings of a pine located along the Federal highway "Don" and landings, which is nearly the sea coast. Researches were conducted to a standard technique of the General vital state (A. S. Bogolyubov). The assessment of a condition of pines was carried out during 6 years: from 2010 to 2015. For carrying out research we used 6 experimental grounds on the Markotkhsky spine and 2 control grounds within the town. We investigated 24 trees on each platform, middle age of the trees were 30 - 40 years. Results. 1. The condition of trees in the pine forests located in immediate proximity with the Federal highway "Don" (No. 1, 2, 3) is unsatisfactory. As even weak influences of the majority of atmospheric gaseous pollutants (sulphurous gas, nitrogen oxides, etc.) give effect of a necrosis and hloroz of pine needles, the condition of pines is connected with technogenic pollution. So near the Federal highway "Don" the air environment is strongly polluted by exhaust gases. Information of 2012 confirm that negative influence of the route on Markotkh's vegetation decreases at reduction of load of the route. 2. On the sites located above on a slope (No. 4,5,6) thanks to remoteness and the wind mode intensity of influence of pollutants is lower and a condition of pines the quite satisfactory. 3. Trees on the sites located near the sea (No. 7,8) are in a good shape. Small deterioration of a state is noted in very droughty years. Conclusion. Results of six years' research show that the condition of the plantings which are in close proximity with the road worsens. It is explained by increase in intensity of the movement on the road, especially during a resort season. Gelendzhik is the city with a good ecological shape, but the damage to environment is already caused. If not to take measures, we can lose a unique part of the nature in the future, recreate it will be impossible. Measures of reduction of negative impact of exhaust gases were offered. Results of researches are transferred to ecological department of the City administration of Gelendzhik.

scholarly journals Residents’ Opinions and Perceptions of Tourism Development in the Historic City of Toledo, Spain

2019 ◽  
Vol 11 (14) ◽  
pp. 3854
Author(s):  
Luis Alfonso Escudero Gómez
Keyword(s):  
Negative Impact ◽  
Tourism Development ◽  
Host Community ◽  
Residential Areas ◽  
Tourist Destinations ◽  
Historic Center ◽  
The Impact ◽  
Historic City ◽  
The City ◽  
Historic Cities

Historic centers have become first-line tourist destinations. In order to achieve sustainable development, it is essential to get to know the opinions of the host community on the impact of tourism, the positives, as well as the negatives. This paper aims to understand the residents’ opinions and perceptions of destinations as the historic cities. This research looks into the residents’ opinions on the impact of tourism in the historic city of Toledo, Spain. The results of a quantitative survey among 442 residents in the city of Toledo are presented. The study is a revision of the literature and analysis and explanation of an empiric study’s results. Descriptive statistics have been used, as well as factor analysis and non-parametric tests to analyze data. The main results point out that residents have a positive vision of tourism development, rather than negative. The economic importance of tourism and its ability to create jobs stand out. However, they also think that the historic center is being turned into a museum for tourists. Analyzing their opinions according to certain demographic and socioeconomic characteristics, some major differences come up, such as that the inhabitants of residential areas have a more positive opinion than those who live in the historic center. Understanding the perspective of the residents can help the managers and planners of the tourism in the city to play down the potential negative impact of tourism and to achieve support from the host community in regards to tourism.

scholarly journals Applying of green building standards for implementation of the city development strategies in Kyiv.

2019 ◽  
Vol 3 (1) ◽  
pp. 16-30
Author(s):  
Dmytro Varavin ◽  
Tetiana Kryvomaz
Keyword(s):  
Environmental Protection ◽  
Public Space ◽  
Development Strategy ◽  
Negative Impact ◽  
Green Building ◽  
Building Structures ◽  
City Development ◽  
Land Relations ◽  
Building Standards ◽  
The City

The main tasks of the "Kyiv City Development Strategy until 2025" are in development and reconstruction of the city, improvement of its infrastructure and environmental protection, which perfectly correlates with the basic principles of green building. This is the modern practice in construction, reconstruction and the exploitation of buildings, in which they im-plement optimal architectural solutions, advanced engineering systems and materials for re-ducing of energy consumption and material resources, it is the process of improving the qual-ity of buildings and the comfort of their internal environment, improving of impact of build-ings on the health of people by minimizing the negative impact on the environment at all stag-es of life cycle of building structures. The practice of the tasks outlined in the Strategy will significantly contribute to the implementation of international environmental standards and to the application of constructive solutions of green building technologies. In particular it ap-peals to such urban development sectors as city development and land relations, housing and communal services, transport and urban mobility, environmental policy and environmental protection, public space, security and civil protection, historical and architectural heritage.

scholarly journals Impact of Diakonia, Koinonia and Marturia Services for the Growth of the Indonesian Christian Church Resident Sudirman Surabaya

2020 ◽  
Vol 3 (2) ◽  
pp. 38-49
Author(s):  
Wimpie Tanojo
Keyword(s):  
Church Growth ◽  
Human Life ◽  
Theoretical Data ◽  
Field Research ◽  
Main Task ◽  
Sources Of Information ◽  
Christian Church ◽  
The Impact ◽  
The City ◽  
The Church

The ministries of Diakonia, Koinonia and Marturia are the foundation of a church, meaning that a church that is aware of its duty and calling on this earth must rely on these three ministries. It can be said that the true main duty of the church is reflected in the ministry of Diakonia, Koinonia and Marturia. Based on this main task, the church must be able to demonstrate and impart the life of Diakonia, Koinonia and Marturia with the aim of impacting and changing human life. This is what the Ressud Sudirman Surabaya Indonesian Christian Church is aware of in the context of its duties and vocation as a church that has been present in the midst of the Surabaya community, of course its presence is required to fulfill God's plan to become salt and light, a blessing for the surrounding community in general and the congregation in particular. through Diakonia, Koinonia and Marturia's ministry. This research uses a descriptive method. The author directly conducts research, both literature and field research. Bibliography that contains various theoretical data related to topic material from various sources of information which contains important statements to support the accuracy of the research. In addition, this research is also complemented by field research either through questionnaires or direct interviews with several trusted sources including congregants, church activists, servants, sympathizers so that the results of the research present a strong and accurate combination because they are supported by strong theoretical aspects but are also followed by field research evidence. The purpose of this study: first to realize how important the services of Diakonia, Koinonia and Marturia are for the growth of the Indonesian Christian Church in Ressud Surabaya in particular and to the Lord's church in general. Second, the Church is aware of her duty and calling on this earth which has been mandated by God to be her witness so that the impact is evident in church growth both in quality and quantity. Third, the Church of God has the correct concept of the impact of the ministry of Diakonia, Koinonia and Marturia on church growth from the perspective of Missiology, Theology and Ecclesiology. Based on the research conducted by the author, the results obtained are how the extraordinary impact of the services of Diakonia, Koinonia and Marturia on the growth of the Indonesian Christian Church Ressud Surabaya.   This is evidenced by the increasing number of church members from year to year and the increasing quality of the congregation's faith. By having a correct understanding of the ministry of Diakonia, Koinonia and Marturia, the congregation will be more active and diligent in carrying out the duties and responsibilities that have been mandated by God to become a blessing, to become salt and light in this world, in various forms of diaconial services such as selling rice. cheap for the congregation and partly distributed by the surrounding community, cheap medical treatment and even free for the congregation and the poor by establishing a polyclinic "Waluyojati", scholarships for underprivileged congregations ranging from elementary, junior high and even vocational levels, house renovation program held 1 a year one to two times for the congregation. In the form of Koinonia, it can be seen from the congregation that is divided into several sectors or regions, the congregation will continue to grow and increase even out of the city, namely Lamongan, Denpasar and even to Batam, the Denpasar congregation was institutionalized in 2003, while in the city of Surabaya the Indonesian Christian Church Lebak Jaya was matured in 1994 and the Kutisari area in 1998 was instituted simultaneously in 1998 the Batam Indonesian Christian Church was also institutionalized where the Batam Indonesia Christian Church is the fruit of the ministry of several Indonesian Christian Churches including the Indonesian Christian Church Ressud in it. The goal is to be a witness through this service, but the most important of this research is that the Indonesian Christian Church congregation in Ressud is a congregation that has marturia diaconiality, while the implementation of Marturia directly or verbally is not optimal, this is also acknowledged by the council is a local church based on interviews and research based on a questionnaire.

Ecosystem approach to the development of sustainable transport mobility in a metropolis

2021 ◽  
pp. 18-27
Author(s):  
Dmitriy Vadimovich Zavyalov ◽  
Nadezhda Borisovna Zavyalova ◽  
Olga Vitalievna Saginova
Keyword(s):  
Data Integration ◽  
Water Surface ◽  
Negative Impact ◽  
Ecosystem Approach ◽  
Urban Transport ◽  
Sustainable Transport ◽  
Operational Management ◽  
The Impact ◽  
Transport Mobility ◽  
The City

The article presents an analysis of the impact of urban transport on the environmental situation in the metropolis. A variant of the database modification based on the results of monitoring of the level of pollution of the atmosphere, soil mantle and water surface is proposed. Data integration will allow assessing the effectiveness of the measures applied in the city to reduce the negative impact of urban transport and make operational management decisions.

NESTED HIGH-RESOLUTION NOx AND PM SIMULATIONS OVER ZÜRICH

2021 ◽  
Author(s):  
Ivo Suter ◽  
Lukas Emmenegger ◽  
Dominik Brunner
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Boundary Conditions ◽  
Meteorological Conditions ◽  
Model Systems ◽  
Multi Scale ◽  
Wide Range ◽  
The Impact ◽  
The City ◽  
Concentration Levels

<p>Reducing air pollution, which is the world's largest single environmental health risk, demands better-informed air quality policies. Consequently, multi-scale air quality models are being developed with the goal to resolve cities. One of the major challenges in such model systems is to accurately represent all large- and regional-scale processes that may critically determine the background concentration levels over a given city. This is particularly true for longer-lived species such as aerosols, for which background levels often dominate the concentration levels, even within the city. Furthermore, the heterogeneous local emissions, and complex dispersion in the city have to be considered carefully.</p><p>In this study, the impact of processes across a wide range of scales on background concentrations over Switzerland and the city of Zurich was modelled by performing one year of nested European and Swiss national COSMO-ART simulations to obtain adequate boundary conditions for gas-phase chemical, aerosol and meteorological conditions for city-resolving simulations. The regional climate chemistry model COSMO-ART (Vogel et al. 2009) was used in a 1-way coupled mode. The outer, European, domain, which was driven by chemical boundary conditions from the global MOZART model, had a 6.6 km horizontal resolution and the inner, Swiss, domain one of 2.2 km. For the city scale, a catalogue of more than 1000 mesoscale flow patterns with 100 m resolution was created with the model GRAMM, based on a discrete set of atmospheric stabilities, wind speeds and directions, accounting for the influence of land-use and topography. Finally, the flow around buildings was solved with the CFD model GRAL forced at the boundaries by GRAMM. Subsequently, Lagrangian dispersion simulations for a set of air pollutants and emission sectors (traffic, industry, ...) based on extremely detailed building and emission data was performed in GRAL. The result of this nested procedure is a library of 3-dimensional air pollution maps representative of hourly situations in Zurich (Berchet et al. 2017). From these pre-computed situations, time-series and concentration maps can be obtained by selecting situations according to observed or modelled meteorological conditions.</p><p>The results were compared to measurements from air quality monitoring network stations. Modelled concentrations of NO<sub>x</sub> and PM compared well to measurements across multiple locations, provided background conditions were considered carefully. The nested multi-scale modelling system COSMO-ART/GRAMM/GRAL can adequately reproduce local air quality and help understanding the relative contributions of local versus distant emissions, as well as fill the space between precise point measurements from monitoring sites. This information is useful for research, policy-making, and epidemiological studies particularly under the assumption that exceedingly high concentrations become more and more localised phenomenon in the future.</p>

scholarly journals The impact of ship emissions on air quality and human health in the Gothenburg area – Part 1: 2012 emissions

2020 ◽  
Vol 20 (12) ◽  
pp. 7509-7530 ◽  
Author(s):  
Lin Tang ◽  
Martin O. P. Ramacher ◽  
Jana Moldanová ◽  
Volker Matthias ◽  
Matthias Karl ◽  
...  
Keyword(s):  
Air Quality ◽  
Road Traffic ◽  
Ship Emissions ◽  
The North ◽  
Relative Contribution ◽  
Premature Deaths ◽  
The North Sea ◽  
The Baltic ◽  
The Impact ◽  
The City

Abstract. Ship emissions in and around ports are of interest for urban air quality management in many harbour cities. We investigated the impact of regional and local ship emissions on urban air quality for 2012 conditions in the city of Gothenburg, Sweden, the largest cargo port in Scandinavia. In order to assess the effects of ship emissions, a coupled regional- and local-scale model system has been set up using ship emissions in the Baltic Sea and the North Sea as well as in and around the port of Gothenburg. Ship emissions were calculated with the Ship Traffic Emission Assessment Model (STEAM), taking into account individual vessel characteristics and vessel activity data. The calculated contributions from local and regional shipping to local air pollution in Gothenburg were found to be substantial, especially in areas around the city ports. The relative contribution from local shipping to annual mean NO2 concentrations was 14 % as the model domain average, while the relative contribution from regional shipping in the North Sea and the Baltic Sea was 26 %. In an area close to the city terminals, the contribution of NO2 from local shipping (33 %) was higher than that of road traffic (28 %), which indicates the importance of controlling local shipping emissions. Local shipping emissions of NOx led to a decrease in the summer mean O3 levels in the city by 0.5 ppb (∼2 %) on average. Regional shipping led to a slight increase in O3 concentrations; however, the overall effect of regional and the local shipping together was a small decrease in the summer mean O3 concentrations in the city. In addition, volatile organic compound (VOC) emissions from local shipping compensate up to 4 ppb of the decrease in summer O3 concentrations due to the NO titration effect. For particulate matter with a median aerodynamic diameter less than or equal to 2.5 µm (PM2.5), local ship emissions contributed only 3 % to the annual mean in the model domain, while regional shipping under 2012 conditions was a larger contributor, with an annual mean contribution of 11 % of the city domain average. Based on the modelled local and regional shipping contributions, the health effects of PM2.5, NO2 and ozone were assessed using the ALPHA-RiskPoll (ARP) model. An effect of the shipping-associated PM2.5 exposure in the modelled area was a mean decrease in the life expectancy by 0.015 years per person. The relative contribution of local shipping to the impact of total PM2.5 was 2.2 %, which can be compared to the 5.3 % contribution from local road traffic. The relative contribution of the regional shipping was 10.3 %. The mortalities due to the exposure to NO2 associated with shipping were calculated to be 2.6 premature deaths yr−1. The relative contribution of local and regional shipping to the total exposure to NO2 in the reference simulation was 14 % and 21 %, respectively. The shipping-related ozone exposures were due to the NO titration effect leading to a negative number of premature deaths. Our study shows that overall health impacts of regional shipping can be more significant than those of local shipping, emphasizing that abatement policy options on city-scale air pollution require close cooperation across governance levels. Our findings indicate that the strengthened Sulphur Emission Control Areas (SECAs) fuel sulphur limit from 1 % to 0.1 % in 2015, leading to a strong decrease in the formation of secondary particulate matter on a regional scale was an important step in improving the air quality in the city.

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