%0 Journal Article %T Outlier Detection of Air Quality for Two Indian Urban Cities Using Functional Data Analysis %A Mohammad Ahmad %A Weihu Cheng %A Zhao Xu %A Abdul Kalam %J Open Journal of Air Pollution %P 79-91 %@ 2169-2661 %D 2023 %I Scientific Research Publishing %R 10.4236/ojap.2023.123005 %X Human living would be impossible without air quality. Consistent advancements in practically every aspect of contemporary human life have harmed air quality. Everyday industrial, transportation, and home activities turn up dangerous contaminants in our surroundings. This study investigated two years¡¯ worth of air quality and outlier detection data from two Indian cities. Studies on air pollution have used numerous types of methodologies, with various gases being seen as a vector whose components include gas concentration values for each observation per-formed. We use curves to represent the monthly average of daily gas emissions in our technique. The approach, which is based on functional depth, was used to find outliers in the city of Delhi and Kolkata¡¯s gas emissions, and the outcomes were compared to those from the traditional method. In the evaluation and comparison of these models¡¯ performances, the functional approach model studied well. %K Functional Data Analysis %K Outliers %K Air Quality %K Gas Emission %K Classical Statistics %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=127286