scholarly journals Air Pollution and Its Impacts – The City of Rijeka Case Study

10.5772/20907 ◽  
2011 ◽  
Author(s):  
Ana Alebic-Jureti
Keyword(s):  
Air Pollution ◽  
The City

scholarly journals IMPROVING THE QUALITY OF INFORMATION SUPPORT FOR MONITORING AIR POLLUTION FROM VEHICLES (CASE STUDY OF ST. PETERSBURG)

2021 ◽  
Vol 26 (2) ◽  
pp. 65-74
Author(s):  
V. N. Lozhkin ◽  
◽  
O. V. Lozhkina ◽  
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Information Support ◽  
Information Process ◽  
Limit Values ◽  
Standard Limit ◽  
The City ◽  
Original Information

Introduction. St. Petersburg is the cultural and sea capital of Russia. The city is characterized by environmental problems typical for the largest cities in the world. It has a technical system for instrumental online monitoring and computational forecasting of air quality. Methods. The system maintains the information process by means of computational monitoring of its current and future state. Results. The paper describes methodological approaches to the generation of instrumental information about the structure and intensity of traffic flows in the urban road network and its digital transformation into GIS maps of air pollution in terms of pollutants standard limit values excess. Conclusion. The original information technology for air quality control was introduced at the regional level in the form of an official methodology and is used in environmental management activities.

A System for Multi-Passenger Urban Ridesharing Recommendations with Ordered Multiple Stops

2019 ◽  
Vol 63 (5) ◽  
pp. 657-687
Author(s):  
Eleonora D’Andrea ◽  
Beatrice Lazzerini ◽  
Francesco Marcelloni
Keyword(s):  
Air Pollution ◽  
Recommender Systems ◽  
Shortest Path ◽  
Directed Acyclic Graph ◽  
Matching Criterion ◽  
Acyclic Graph ◽  
Ordering Constraints ◽  
The City

Abstract Traffic and air pollution caused by the increasing number of cars have become important issues in nowadays cities. A possible solution is to employ recommender systems for efficient ridesharing among users. These systems, however, typically do not allow specifying ordered stops, thus preventing a large amount of possible users from exploiting ridesharing, e.g. parents leaving kids at school while going to work. Indeed, if a parent desired to share a ride, he/she would need to indicate the following constraint in the path: the stop at school should precede the stop at work. In this paper, we propose a ridesharing recommender, which allows each user to specify an ordered list of stops and suggests efficient ride matches. The ride-matching criterion is based on a dissimilarity between the driver’s path and the shared path, computed as the shortest path on a directed acyclic graph with ordering constraints between the stops defined in the single paths. The dissimilarity value is the detour requested to the driver to visit also the stops of the paths involved in the ride-share, respecting the visiting order of the stops within each path. Results are presented on a case study involving the city of Pisa.

scholarly journals Assessing the Immediate Effect of Covid-19 Lockdown on Air Quality: A Case Study of Delhi, India

2020 ◽  
Vol 13 (3-4) ◽  
pp. 27-33
Author(s):  
Ankit Sikarwar ◽  
Ritu Rani
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Spatial Interpolation ◽  
World Health ◽  
Guideline Values ◽  
Distance Weighting ◽  
Health Organization ◽  
The City ◽  
Inverse Distance

Abstract In India, a nationwide lockdown due to COVID-19 has been implemented on 25 March 2020. The lockdown restrictions on more than 1.3 billion people have brought exceptional changes in the air quality all over the country. This study aims to analyze the levels of three major pollutants: particulate matter sized 2.5 μm (PM2.5) and 10 μm (PM10), and nitrogen dioxide (NO2) before and during the lockdown in Delhi, one of the world’s most polluted cities. The data for PM2.5, PM10, and NO2 concentrations are derived from 38 ground stations dispersed within the city. The spatial interpolation maps of pollutants for two times are generated using Inverse Distance Weighting (IDW) model. The results indicate decreasing levels of PM2.5, PM10, and NO2 concentrations in the city by 93%, 83%, and 70% from 25 February 2020 to 21 April 2020 respectively. It is found that one month before the lockdown the levels of air pollution in Delhi were critical and much higher than the guideline values set by the World Health Organization. The levels of air pollution became historically low after the lockdown. Considering the critically degraded air quality for decades and higher morbidity and mortality rate due to unhealthy air in Delhi, the improvement in air quality due to lockdown may result as a boon for the better health of the city’s population.

scholarly journals Emission of Air Pollution in the Transport Sector: Case Study of the City of Campos dos Goytacazes, Brazil

Engineering ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 851-862
Author(s):  
Marcenilda A. Lima ◽  
Marcelo S. Sthel
Keyword(s):  
Air Pollution ◽  
Transport Sector ◽  
The City

scholarly journals Awareness of Air Pollution and Ecosystem Services Provided by Trees: The Case Study of Warsaw City

2021 ◽  
Vol 13 (19) ◽  
pp. 10611
Author(s):  
Karolina Kais ◽  
Marlena Gołaś ◽  
Marzena Suchocka
Keyword(s):  
Air Pollution ◽  
Urban Areas ◽  
Negative Impact ◽  
Urban Spaces ◽  
Social Awareness ◽  
Ecosystem Functions ◽  
Green Areas ◽  
The City

One of the consequences of the constant urban development in numerous countries is a growing concentration of air pollution, which adversely affects both the environment and people’s health. One of the ways of changing this negative trend is to maintain green areas and trees within cities, as they serve many ecosystem functions, including biological absorption of particles and other types of air pollution. This article provides the findings of a study carried out among the residents of Warsaw, the capital of Poland, in order to assess social awareness of air pollution and the importance of trees. The study of the residents’ awareness was supplemented with the assessment of the parameters of the trees’ capacity for pollution absorption in selected locations performed with the help of the i-Tree Eco tool, which allowed the authors to compare the residents’ impressions on the role of trees in the process of absorption of pollution with their actual potential. The analyses showed that the majority of city residents are concerned with the problem of air in the city, but at the same time failing to notice its negative impact on their health. The majority of respondents were not aware of the role the trees play in the process of pollution absorption, suggesting that there is a real need for raising social awareness of functions served by trees and green areas in urban spaces. The comparison of the city residents’ opinions on the importance of trees in the process of pollution absorption with objective data obtained with the help of i-Tree Eco tool shows that the majority of people’s impressions of pollution absorption by trees in urban areas is correct.

scholarly journals Assessing the immediate effect of COVID-19 lockdown on air quality: A case study of Delhi, India

2020 ◽  
Author(s):  
Ankit Sikarwar ◽  
Ritu Rani
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Spatial Interpolation ◽  
World Health ◽  
Guideline Values ◽  
Distance Weighting ◽  
Health Organization ◽  
The City ◽  
Inverse Distance

Abstract In India, the nationwide lockdown due to COVID-19 has been implemented on 25 March 2020. The lockdown restrictions on more than 1.3 billion people have brought exceptional changes in the air quality all over the country. This study aims to analyze the levels of three major pollutants (PM2.5, PM10, and NO2) before and during the lockdown in Delhi, one of the world’s most polluted cities. The data for PM2.5, PM10, and NO2 concentrations are derived from 38 ground stations dispersed within the city. The spatial interpolation maps of pollutants for two times are generated using Inverse Distance Weighting (IDW) model. The results indicate the lowering of PM2.5, PM10, and NO2 concentrations in the city by 93%, 83%, and 70% from 25 February 2020 to 21 April 2020 respectively. It is found that before one month of the lockdown the levels of air pollution in Delhi were critically high and far beyond the guideline values set by the World Health Organization. The levels of air pollution are historically low after the lockdown. Considering the critically degraded air quality for decades and higher morbidity and mortality rate due to unhealthy air in Delhi, the improvement in air quality due to lockdown may result as a boon for the better health of the city’s population.

scholarly journals PENERAPAN TRANSIT ORIENTED DEVELOPMENT (TOD) SEBAGAI UPAYA MEWUJUDKAN TRANSPORTASI YANG BERKELANJUTAN

Pondasi ◽  
2019 ◽  
Vol 24 (1) ◽  
pp. 45
Author(s):  
Sekar Hapsari Ayuningtias ◽  
Mila Karmilah
Keyword(s):  
Air Pollution ◽  
Energy Use ◽  
Healthy Lifestyles ◽  
Mass Transportation ◽  
Sustainable Transport ◽  
Transit Oriented Development ◽  
Transportation Sector ◽  
Transportation Modes ◽  
The City

ABSTRACTUrban sprawl causes the lifestyle of private vehicle use as the main preference in the choice of transportation modes which results in congestion, air pollution and energy use in the transportation sector which continues to increase. Transit Oriented Development (TOD) is an alternative solution in solving these problems, with the concept of urban development that maximizes diverse and integrated land use by promoting healthy lifestyles through walking and cycling and maximizing the use of mass transportation modes. Therefore, this research was conducted with the aim of knowing the application of the development of TOD for planning to achieve sustainable transportation.The variables used in this study are density, diversity, design and transit which are a combination of the theories of Cervero (1997) and ITDP (2014). The results of the study showed that the city of Surabaya was dominated by transit, Bandung Cit y and Jakarta City variables which were both dominated by density and transit variables. Based on inter-case studies there are differences between indicators theory and indicators case study, and each case study also has different parameters. Thus, there has been an adjustment in the theory of the application of TOD in Indonesia, besides that the indicators of TOD implementation are also adjusted according to the characteristics and policies of the region concernedKeywords: TOD, sustainable, transport ABSTRAKUrban sprawl menyebabkan terjadinya gaya hidup penggunaan kendaraan pribadi sebagai preferensi utama dalam pemilihan moda transportasi yang berakibat pada kemacetan, pencemaran udara dan penggunaan energi pada sektor transportasi yang terus meningkat. Transit Oriented Development (TOD) merupakan salah satu solusi alternatif dalam menyelesaikan permasalahan tersebut, dengan konsep pengembangan kota yang memaksimalkan penggunaan lahan beragam dan terintegrasi dengan mempromosikan gaya hidup sehat melalui berjalan kaki dan bersepeda serta memaksimalkan penggunaan moda transportasi massal. Oleh sebab itu, penelitian ini dilakukan dengan tujuan untuk mengetahui penerapan pengembangan TOD bagi perencanaan guna mencapai transportasi yang berkelanjutan.Variabel yang digunakan dalam penelitian ini adalah density, diversity, design dan transit yang merupakan gabungan dari teori Cervero (1997) dan ITDP (2014). Hasil penelitian menunjukkan bahwa Kota Surabaya didominasi dengan variabel transit, Kota Bandung dan Kota Jakarta sama-sama didominasi oleh variabel density dan transit. Berdasarkan kajian antar studi kasus terdapat perbedaan antara indikator teori dan indikator studi kasus, dan masing-masing studi kasus juga memiliki parameter yang berbeda pula. Sehingga, terjadi penyesuaian teori penerapan TOD di Indonesia, selain itu indikator penerapan TOD juga disesuaikan sesuai dengan karakteristik dan kebijakan kawasan yang bersangkutan.Kata kunci: TOD, transportasi, berkelanjutan

scholarly journals The Fatal Accident at Biodiversity Flyover in Hyderabad - A Case Study

2021 ◽  
Vol 11 (6) ◽  
Author(s):  
Raja Sekhar Mamillapalli ◽  
Srihari Vedartham
Keyword(s):  
Air Pollution ◽  
Waiting Time ◽  
Economic Benefit ◽  
Heavy Traffic ◽  
Fatal Accident ◽  
Road Space ◽  
Penal Codes ◽  
The Government ◽  
The City

Urban disasters, Traffic is unavoidable due to increase in density of vehicles without adding more road space to the city. This is demanding for more flyovers, grade separators to avoid congestion at the junctions. Hyderabad is congesting with many junctions adding up to the heavy traffic and waiting time, energy, fuel and polluting the city with noise and air pollution. For economic benefit and decongestion of major junctions, Flyovers were planned and constructed. To meet this demand in Gachibowli and Hi-Tech city area, a flyover was constructed by MVR Infra projects near biodiversity junction. The present paper describes the incident of fatal accident taken place on November 23, 2019. The study also reveals aftermath actions taken by the government of Telangana and suggested various sections in the Indian penal codes for such incidents.

scholarly journals SUPREME COURT BANS CRACKERS: JUDICIAL ACTIVISM AND IMPACT ON DELHI AIR POLLUTION USING TREND ANALYSIS

2021 ◽  
pp. 4521-4529
Keyword(s):  
Air Pollution ◽  
Supreme Court ◽  
Trend Analysis ◽  
Natural Environment ◽  
Judicial Activism ◽  
Supreme Court Of India ◽  
Analysis Technique ◽  
Human Habitation ◽  
The City

One of the prime concerns of all the growing economies around the globe is a environmental hazard. Due to the trends of industrialization and globalization, every economy is facing the challenges of increasing pollutants concentration in their natural environment and India is no exception. The capital of the country is having the worse levels of pollutants in its air making it dangerous for human habitation. This has been further brought into limelight recently towards 2017-year end, when the city experienced worst levels of air pollution, popularly called as the Great Smog of Delhi. All the stakeholders have been taking measures from time to time to control the emissions of pollutants but their effectiveness is still questionable. This paper concentrates on the case study of impact of banning of firecrackers by Supreme Court of India around Diwali period. This is evaluates by using trend analysis technique on last 12 years’ concentration of SO2 , NO2 and PM10 for three major locations of Delhi

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