Air pollution had become a vital concern for the 2014 Youth Olympic Games in Nanjing. In order to control air pollutant emissions and ensure better air quality during the Games, the Nanjing municipal government took a series of aggressive control measures to reduce pollutant emissions in Nanjing and its surrounding cities during the Youth Olympic Games. The Air Quality Index (AQI) is an index o...

In the context of carbon neutrality and air pollution prevention, it is great research significance to achieve high-accuracy prediction quality index. this paper, Beijing used as study area; data from January 2014 December 2019 are training set, 2020 2021 test set. The CEEMDAN-ARMA-LSTM model constructed in paper for analysis. CEEMDAN decompose improve information utilization. smooth non-white ...

Based on Beijing’s Air Quality Index (AQI) and concentration changes of the six major pollutants from 2019 to 2021, results are visualized through descriptive statistics, air pollution status influencing factors AQI analyzed using ARIMA model neural network. A forecast system is built fitting effects two models compared. The show that PM2.5, PM10, O3 have greatest impact AQI. quality now shows ...

The aim of this study is to determine the natural and anthropogenic factors affecting air quality index (AQI) create a model that shows effects these on AQI values in cities Turkey. Natural factors, which are thought have an effect AQI, were determined interpreted with kriging maps. examined by explanatory spatial data analysis (ESDA). Global Moran’s I local (LISA) indices for presence relation...

The Iowa City Landfill in eastern Iowa, United States, experienced a fire lasting 18 days in 2012, in which a drainage layer of over 1 million shredded tires burned, generating smoke that impacted the surrounding metropolitan area of 130,000 people. This emergency required air monitoring, risk assessment, dispersion modeling, and public notification. This paper quantifies the impact of the fire...