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All Journal Al-Ard: Jurnal Teknik Lingkungan Jurnal Teknologi Informasi : Jurnal Keilmuan dan Aplikasi Bidang Teknik Informatika
Joko Ade Nursiyono
BPS Provinsi Jawa Timur
Computer Science & IT Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Environmental Science Library & Information Science

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PEMANFAATAN INDEKS KUALITAS UDARA (IKU) SEBAGAI INDIKATOR PERGERAKAN EKONOMI JAWA TIMUR DI TENGAH PANDEMI COVID-19 Joko Ade Nursiyono; Ima Sartika Dewi
Jurnal Teknologi Informasi: Jurnal Keilmuan dan Aplikasi Bidang Teknik Informatika Vol. 16 No. 1 (2022): Jurnal Teknologi Informasi : Jurnal Keilmuan dan Aplikasi Bidang Teknik Inform
Publisher : Universitas Palangka Raya

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Abstract

The Covid-19 pandemic that hit East Java has affected various aspects in life including health, social and economic aspects. The government imposed an emergency public activity restriction (PPKM darurat) policy as an effort to control the spread of Covid-19. As a result of these restrictions, the economy in East Java is declined. This study aims to predict economic recovery in East Java after the emergency public activity restriction (PPKM darurat) policy based on changes in the air quality index before and after the implementation of emergency public activity restriction (PPKM darurat). The data in this study were obtained through big data by web-scrapping. Using the mean difference test and Mac Nemar test, this study shows that there is a significant change in air quality index status from healthy to unhealthy air quality in districts/cities in East Java after the easing of emergency public activity restriction (PPKM darurat).
Determinants of the Amount of Waste in East Java Joko Ade Nursiyono; Chusnul Chotimah; Warisna Endah Fitrianti
Al-Ard: Jurnal Teknik Lingkungan Vol. 7 No. 2 (2022): Maret
Publisher : Department of Environmental engineering, Faculty of Science and Technology, Islamic State University Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/alard.v7i2.1405

Abstract

Listed as one of the largest waste contributor provinces in Indonesia. The population of East Java in 2020 reached 39 million people, it is the second highest in Indonesia. The increasing number of people accompanied by an increase in income will increase people's consumption in an area and this will cause the increasing amount of waste. If this waste problem is not handled properly, it will have a domino effect as well as degrading the environment. This study wanted to determine the effect of population, real expenditure per capita per year and the number of waste banks on the amount of waste in 2020 in East Java Province. This study uses a comparison of OLS Regression and Robust Regression models. The criteria for selecting the best model use the smallest MAPE, RMSE, and RSE values and the largest R-square value. The results of the partial test and the simultaneous test show that the variables of population, real expenditure per capita per year and the number of waste banks significantly affect the variable amount of waste in East Java with the selected model is the Robust Regression model. The R-square value of the Robust Regression model in this study is 0.8909, meaning that the model's ability to explain the variability of the East Java waste amount data is 89.09 percent, and the rest is explained by other variables not included in the model.
Co-Authors Chusnul Chotimah Ima Sartika Dewi Warisna Endah Fitrianti