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      SURVEY DATA REGARDING PERCEIVED AIR QUALITY IN AUSTRALIA, BRAZIL, CHINA, GHANA, INDIA, IRAN, ITALY, NORWAY, SOUTH AFRICA, UNITED STATES BEFORE AND DURING COVID-19 RESTRICTIONS

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          Abstract

          The dataset deals with the air quality perceived by citizens before and during the enforcement of COVID-19 restrictions in ten countries around the world: Australia, Brazil, China, Ghana, Italy, India, Iran, Norway, South Africa and the United States. An online survey conveniently translated into Chinese, English, Italian, Norwegian, Persian, Portuguese has collected information regarding the perceived quantity of air pollution according to a Likert scale. The questionnaire has been distributed between 11-05-2020 and 31-05-2020 and 9 394 respondents have taken part. Both the survey and the dataset (stored in a Microsoft Excel Worksheet) are available in a public repository. The collected data offer the people's subjective perspectives related to the objective improvement in air quality occurred during the COVID-19 restrictions. Furthermore, the dataset can be used for research studies involving the reduction in air pollution as experienced, to a different extent, by populations of all the ten countries.

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          COVID-19 pandemic and environmental pollution: A blessing in disguise?

          In late 2019, a novel infectious disease with human to human transmission (COVID-19) was identified in Wuhan China, which now has turned into a global pandemic. Countries all over the world have implemented some sort of lockdown to slow down its infection and mitigate it. Lockdown due to COVID-19 has drastic effects on social and economic fronts. However, this lockdown also have some positive effect on natural environment. Recent data released by NASA (National Aeronautics and Space Administration) and ESA (European Space Agency) indicates that pollution in some of the epicenters of COVID-19 such as Wuhan, Italy, Spain and USA etc. has reduced up to 30%. This study compiled the environmental data released by NASA and ESA before and after the coronavirus pandemic and discusses its impact on environmental quality.
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            Evolution of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) as coronavirus disease 2019 (COVID-19) pandemic: A global health emergency

            According to data compiled by researchers at Johns Hopkins University in Baltimore, Maryland, more than two and half million cases of coronavirus disease 2019 (COVID-19), caused by a newly discovered virus named severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), have been confirmed on April 20, 2020 (Nature, 2020b). Since the emergence of this infectious disease in Asia (Wuhan, China) late last year, it has been subsequently span to every continent of the world except Antarctica (Rodríguez-Morales et al., 2020). Along with a foothold in every country, the current disease pandemic is disrupting practically every aspect of life all over the world. As the outbreak are continuing to evolve, several research activities have been conducted for better understanding the origin, functions, treatments, and preventions of this novel coronavirus. This review will be a summa of the key features of novel coronavirus (nCoV), the virus causing disease 2019 and the present epidemic situation worldwide up to April 20, 2020. It is expected that this record will play an important role to take more preventive measures for overcoming the challenges faced during this current pandemic.
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              Decline in PM 2.5 Concentrations over Major Cities Around the World Associated with COVID-19

              The COVID-19 started from Wuhan city in China, slowly spread across the globe after December 2019. Due to movement of people from one city to other cities, one country to other countries, infection spreads and COVID-19 became a pandemic. Efforts were made at local, regional and national levels to lockdown the movement of people and to keep infected one in quarantine or isolation to stop the spread of COVID-19. The traffic, market and small industries were closed, as a result pronounced decline in the concentrations of particulate matters (PM) were observed. Normally these sources contribute to the high concentrations of particulate matters (PM2.5) which represents air quality of a location. In this short communication, we present analysis of PM2.5 of major cities (New York, Los Angeles, Zaragoza, Rome, Dubai, Delhi, Mumbai, Beijing and Shanghai) around the world suffered severely with the COVID-19. Our analysis shows decline in PM2.5 concentration due to lockdown, mainly due to less movement of people to keep “social distancing” to control the spread of CORONA-19. The low concentrations of PM2.5 reflect the efforts made in the cities to curb the spread of infection, that improve air quality.
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                Author and article information

                Contributors
                Journal
                Data Brief
                Data Brief
                Data in Brief
                The Author(s). Published by Elsevier Inc.
                2352-3409
                13 August 2020
                13 August 2020
                : 106169
                Affiliations
                [1 ]Norwegian University of Science and Technology, Department of Civil and Environmental Engineering. Høgskoleringen 7A, Trondheim, 7491, Trøndelag, Norway. Tel: +47 930 02 908, ORCID 0000-0002-5924-9367
                [2 ]Chang'an University, School of Highway, Nan Er Huan Road (Mid-section), Xi'an, 710064, Shaanxi, China, Tel: +86 137 5991 2089, ORCID 0000-0001-6099-1713
                [3 ]Italian Society of Cognitive Behavioral Therapy (CBT-Italy), Guastalla St. 2 City, Carpi 4012, Emilia-Romagna, Italy, Tel: ±39 338 2509 852, ORCID 0000-0003-0744-7051
                [4 ]Centre for Invasion Biology, Department of Mathematical Sciences, Stellenbosch University, Matieland, 7602, South Africa. Biodiversity Informatics Unit, African Institute for Mathematical Sciences, Cape Town 7945, South Africa. Tel: ±27 218 083 853, ORCID 0000-0002-3660-8160
                [5 ]Federal University of Ouro Preto, Department of Civil Engineering. Rua Nove, Bauxita, Ouro Preto, 35400-000, Minas Gerais, Brazil, Tel: +55 319 9676 3003, ORCID 0000-0002-4856-5671
                [6 ]University of KwaZulu-Natal, Department of Geography. Howard College City, Durban, 4000, KwaZulu, South Africa, Tel: +27 312 601 027, ORCID 0000-0003-1266-2231
                [7 ]Indian Institute of Technology Guwahati, Department of Civil Engineering. IIT Guwahati, Guwahati, 781039, Assam, India, Tel: +91 789 6888 895, ORCID 0000-0002-6414-295X
                [8 ]State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology. Luoshi road 122, Wuhan, 430070, Hubei, China, Tel: +86 131 3569 3261, ORCID 0000-0003-0751-8489
                [9 ]University of Idaho, Department of Civil and Environmental Engineering. 875 Perimeter Drive, Mailstop 1022, Moscow, 83844, Idaho, United States, Tel: +1 208 8854 028, ORCID 0000-0002-7675-6598
                [10 ]Ohio University, Department of Civil Engineering/Russ College of Engineering & Technology. 28 W. Green Drive, Athens, 45701, Ohio, United States, Tel: +1 740 5934 151, ORCID 0000-0003-0436-885X
                [11 ]Sun Yat-sen University, School of Civil Engineering. Xingang Xi Road 135, Guangzhou, 510275, Guangdong, China, Tel: +86 182 7341 3951, ORCID 0000-0003-1093-9188
                [12 ]Chang'an University, School of Highway. Nan Er Huan Road (Mid-section), Xi'an, 710064, Shaanxi, China, Tel: +86 153 3927 6556, ORCID 0000-0002-0756-2538
                [13 ]Lalit Narayan Mithila University, Department of Geography. Darbhanga, 846004, Bihar, India, Tel: +91 921 0021 110, ORCID 0000-0002-0861-1194
                [14 ]University of Connecticut, Connecticut Transportation Safety Research Center. 270 Middle Turnpike, Unit 5202 Longley Building, Storrs, 06269, Connecticut, United States, Tel: +1 860 4865 400, ORCID 0000-0003-3071-3813
                [15 ]Norwegian University of Science and Technology, Department of Civil and Environmental Engineering. Høgskoleringen 7A, Trondheim, 7491, Trøndelag, Norway, Tel: +47 458 69 767, ORCID 0000-0002-4170-4464
                [16 ]Bam University of Medical Sciences, School of Medicine. Bam, 76615-336, Kerman, Iran, Tel: +98 9132 4627 98, ORCID 0000-0003-2267-3380
                [17 ]China University of Mining and Technology, School of Mechanics and Civil Engineering. Daxue Road 1, Xuzhou, 22116, Jiangsu, China, Tel: +86 185 1097 5708, ORCID 0000-0002-9051-8406
                [18 ]Indian Institute of Technology Roorkee, Department of Civil Engineering, Transportation Engineering Group, 321-A&B, Roorkee, 247667, Uttarakhand, India, Tel: ±91 946 8617 387, ORCID 0000-0003-3109-9245
                [19 ]Virginia Tech, Department of Civil and Environmental Engineering. 301-D3 Patton Hall, Blacksburg, 24061, Virginia, United States, Tel: +1 540 2319 002, ORCID 0000-0002-9938-0255
                [20 ]Sonoma State University, Department of Geography, Environment, and Planning, 1801 East Cotati Avenue, Rohnert Park, 94928, California, United States, Tel: +1 707 6643 144, ORCID 0000-0003-3765-158X
                [21 ]University of Bologna, Department of Civil Chemical Environmental and Materials Engineering. Viale del Risorgimento, 2, Bologna, 40136, Emilia-Romagna, Italy, Tel: +39 051 2093 523, ORCID 0000-0003-3703-7352
                [22 ]University of New South Wales, Department of Social Policy Research Centre, John Goodsell Building, Kensington, Sydney, 2052, New South Wales, Australia, Tel: +61 482 594 979, ORCID 0000-0002-3816-2713
                [23 ]Indian Institute of Science Bangalore, Department of Civil Engineering, C V Raman Avenue, Bangalore, 560012, Karnataka, India, Tel: +91 957 1552 621, ORCID 0000-0002-8118-2453
                [24 ]Texas A&M University – Kingsville, Department of Civil and Architectural Engineering, 917 W. Ave B, Kingsville, 78363, Texas, United States, Tel: +1 361 5934 117, ORCID 0000-0001-7618-8159
                [25 ]University of Florida, Department of Civil & Coastal Engineering, 2100 NE Waldo Rd., Sta 106, Gainesville, 32609, Florida, United States, Tel: +1 352 2731 674, ORCID 0000-0001-5032-3236
                [26 ]Federation University Australia, School of Nursing and Healthcare Professions, 72-100 Clyde Rd, Berwick, 3806, Victoria, Australia, Tel: +613 512 26 036, ORCID 0000-0002-1439-0893
                [27 ]University of Agder, Department of Engineering and Science, Jon Lilletuns vei 9, Grimstad, 4879, Agder, Norway, Tel: +47 477 20 561, ORCID 0000-0002-3255-2833
                Author notes
                [* ]Corresponding Author: Diego Maria Barbieri diego.barbieri@ 123456ntnu.no
                Article
                S2352-3409(20)31063-5 106169
                10.1016/j.dib.2020.106169
                7425542
                425ac255-8a23-464b-9b38-43a7094a8074
                © 2020 The Author(s). Published by Elsevier Inc.

                Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

                History
                : 14 July 2020
                : 6 August 2020
                Categories
                Article

                survey data,covid-19,environmental pollution,air quality,psychometric perception

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