EFFECT OF LOCKDOWN DUE TO COVID-19 PANDEMIC ON AIR QUALITY IN THE INDUSTRIAL CITY OF EASTERN INDIA

The lockdown due to coronavirus (COVID-19) was forced in India from March, 25 to May 3 2020 as precautionary actions in contradiction of the diffusion of infectious virus. The objective of this study is to analyse the changes in air quality between pre and during the lockdown in Asansol, the “coal mining city” of Eastern India is characterized by high pollution levels due to several industries leading to human discomfort and even health problems. Secondary data of seven parameters like CO, SO2, NO2, PM2.5, PM10, NH3, and O3 have been collected from the website of the Central Pollution Control Board, India and AQI were calculated as per the calculator provided by CPCB. The result displays a significant reduction of seven parameters from 33.31 % (SO2) to 60.44 % (PM2.5) due to the shut down of all manufacturing units and transportation throughout the lockdown period. The air quality index (AQI) was also upgraded from a very poor to a satisfactory state during this period. Plants are the main carbon sink, so, a green belt project proposal for this polluted city has been recommended to improve air quality management. This lockdown (temporarily) showed some vaccine effect on the air quality, but this is totally against economic growth.

Expansion and Evolution of a Typical Resource-Based Mining City in Transition Using the Google Earth Engine: A Case Study of Datong, China

China's resource-based cities have made tremendous contributions to national and local economic growth and urban development over the last seven decades. Recently, such cities have been in transition from resource-centered development towards human-oriented urbanization to meet the requirements of long-term sustainability for the natural environment and human society. A good understanding of urban expansion and evolution as a consequence of urbanization has important implications for future urban and regional planning. Using a series of remote sensing (RS) images and geographical information system (GIS)-based spatial analyses, this research explores how a typical resource-based mining city, Datong, has expanded and evolved over the last two decades (2000–2018), with a reflection on the role of urban planning and development policies in driving the spatial transformation of Datong. The RS images were provided and processed by the Google Earth Engine (GEE) platform. Spatial cluster analysis approaches were employed to examine the spatial patterns of urban expansion. The results indicate that the area of urban construction land increased by 132.6% during the study period, mainly along with the Chengqu District, the Mining Area, and in the southeast of the Nanjiao District, where most new towns are located. Reflection on the factors that influence urban expansion shows that terrain, urban planning policies, and social economy are driving Datong’s urban development.

Two earthquake events on the Pamsoa Segment of the Matano Fault, Sulawesi

Sulawesi Island crossed by the importance active faults of the Palukoro Fault in the western part and the Matano Fault in the eastern part. Pamsoa Segment, the fourth of six-segments of the Matano Fault (from west to east), located near importance Sorowako mining city, Sulawesi. Pamsoa segment has a 38 km length, oriented N295°E, and has an obvious 475 m sinistral river offset. A reconnaissance survey conduct in this segment along the fault crosses the mining dirt road. Two fault rupture existed on the Holocene river terrace. Accelerated Mass Spectrometry (AMS) carbon dating shows age about 5218 BP and 4446 BP on the soil samples. Nice slicken-side on red soil shows as a fresh fault rupture. This rupture shows a possible two earthquake event on the Pamsoa Segment. The Matano fault has potency similar to the 2018 Palu earthquake. If the fault has similar multi fault rupture earthquake characteristic, the Matano Fault is also classified as a Magnitude 7+ class earthquake. Further research is needed to get precise earthquake geology parameters and ideal charcoal samples.

Is the Naturalization of the Townscape a Condition of De-Industrialization? An Example of Bytom in Southern Poland

A characteristic element of the transformations of cities in Central and Eastern Europe after 1990 was the emergence of shrinking cities. The main problem related to shrinking cities is around how this process developed as a result of rapidly intensifying de-industrialization. While many studies in this area are devoted to demographic, social, and economic issues, relatively few studies address the spatial dimension. In this article, the example of spatial development in the (post-) mining city of Bytom in southern Poland is discussed, pointing to the need for a multifaceted approach to this issue. This article begins with an attempt to contextualize this issue within a broader time perspective. Such an analysis makes it possible to better situate contemporary changes in the context of the processes that were visible in previous periods. Next, these changes are described using two methods. The basis of the first method is comparisons between the different types of land use. The second method, which is emphasized, is the method of A. Macias, which indicates the degree of naturalization/anthropogenization of space. Macias’ method is crucial in the context of discussions about the future of post-mining towns, where attention is paid, among other things, to the issue of sustainable development.

The Role of Pentahelix Actors for Sawahlunto City to be Deemed a Unesco World Heritage

The coal mine closures have turned Sawahlunto into an idle city. By integrating the post-mining sites landscape and the Dutch colonial architecture heritage, Sawahlunto becomes a city of a kind. Therefore, the local government and the legislature (DPRD) as well as other stakeholders created a vision for Sawahlunto as a “A Cultural Tourism Mining City” in 2020, set in Local Government Regulation (PERDA) No 2 of 2001. The year 2020 was set as a target to motivate the local government and stakeholders to achieve the vision. As a matter of fact, Sawahlunto has been included as a World Heritage site by UNESCO as of 2019. This research aims to understand the role of stakeholders in developing and rebranding Sawahlunto, by using the Pentahelix model. This research uses a qualitative method along with the case study approach as well as utilizing interviews, observations and archival study as the types of research methodology. Finally, the result of this research shows that the stakeholders carry out their roles well and fully support the vision of Sawahlunto city.