background: in the past few decades, indoor air pollution (iap) has become a primary concern to the point. it is increasingly believed to be of equal or greater importance to human health compared to ambient air. however, due to the lack of comprehensive indices for the integrated assessment of indoor air quality (iaq), we aimed to develop a novel, fuzzy-based indoor air quality index (fiaqi) t...

The low-cost sensors and IoT have come to the rescue due high cost operational complexity of equipment methodologies in environmental monitoring. They are relatively inexpensive reliable. It is on this assumption that we decided use World Air Quality satellite data supplied by air matters.com. This study a 40-day preliminary work which quality [Air Index (AQI), PM2.5, PM10, NO2, CO, SO2, O3] me...

The comprehensive index method has difficulties in evaluating the influence of air pollutant concentration changes on ambient quality. Thus, a evaluation based entropy weights and trend-regulating factors is proposed. According to information rates 6 pollutants, single weight proposed by integrating it with single-quality index, which reflects variations periods. Spearman’s rank correlation coe...

Air pollution is a serious concern with the developing economics in India and gets more severe when it has major cities ranked among top 30 polluted worldwide. To find solution, different programs and/or policies have been launched for air quality management country-wide. Unfortunately, no such plan could effectively solve purpose rather than an unexpected COVID-19 pandemic situation India. Our...

Abstract Air quality index (AQI) is a number used by government agencies to communicate the public how polluted air currently. It based on several factors like SO2, NO2, O3, RSPM/PM10, and PM2.5. Several methods were developed in past various researchers/environmental for determination of AQI. Still, there no universally accepted method that exists, which appropriate all situations. We have pre...

To prevent the spread of coronavirus disease 2019 (COVID-19), which emerged in late December 2019, Chinese government immediately adopted lockdown measures, such as restricting traffic and closing factories. By analyzing spatiotemporal distribution air quality index (AQI) values Dongying, a city dominated by petrochemical industry (specifically, petroleum exploration), during February 2020, whe...

With the rate of fast urbanization, devasting effects air pollution are spreading across globe. Due to its connection people’s health, quality should be given more importance than other environmental measures. Air is considered a cause many human diseases. Therefore, this study intends investigate seasonal variation and “Air Quality Index (AQI)” in Chittagong city due volume, large population d...

This study investigated the seasonal variation of ambient air quality status of Burdwan town using GIS approach. Concentration of SO2 (sulphur dioxide), NO2 (nitrogen dioxide) and RSPM (respiratory suspended particulate matter) were measured once a week for 24 hour in both premonsoon and postmonsoon season. The seasonal average concentration of the RSPM, SO2 and NO2 in premonsoon season was obs...

This research aims to study the air pollution due fine Particulate Matter of radius less than 2.5µm (PM2.5) and Black Carbon concentration (BC) in samples. Aerosol PM2.5 samples were collected from rooftop National Oncology Center site Al-Zubairy area Sana’a Yemen. A Microprocessor Controlled Sampling device ISAP1050e (Gerhard Schulze Automation Engineering, Germany company) was used collect Th...

BACKGROUND AND OBJECTIVES: The Bangladesh government declared a general holiday beginning on March 26, 2020 aimed to combat coronavirus (COVID-19) pandemic. The aim of this study was to assess the impacts of the general holiday on air quality in Dhaka city area of Bangladesh. METHODS: Hourly PM2.5 (aer...