Decoding PM2.5 Prediction in Nanning Urban Area, China: Unraveling Model Superiorities and Drawbacks Through SARIMA, Prophet, and LightGBM

Algorithms, Год журнала: 2025, Номер 18(3), С. 167 - 167

Опубликована: Март 14, 2025

With the rapid development of industrialization and urbanization, air pollution is becoming increasingly serious. Accurate prediction PM2.5 concentration great significance to environmental protection public health. Our study takes Nanning urban area, which has unique geographical, climatic source characteristics, as object. Based on dual-time resolution raster data China High-resolution High-quality Dataset (CHAP) from 2012 2023, carried out using SARIMA, Prophet LightGBM models. The systematically compares performance each model spatial temporal dimensions indicators such mean square error (MSE), absolute (MAE) coefficient determination (R2). results show that a strong ability mine complex nonlinear relationships, but its stability poor. obvious advantages in dealing with seasonality trend time series, it lacks adaptability changes. SARIMA based series theory performs well some scenarios, limitations non-stationary heterogeneity. research provides multi-dimensional reference for subsequent predictions, helps researchers select models reasonably according different scenarios needs, new ideas analyzing change patterns, promotes related field science.

Язык: Английский

DESIGN, DEVELOPMENT AND PERFORMANCE EVALUATION OF A LOW-COST AND SUSTAINABLE HOUSEHOLD WATER TREATMENT SYSTEM

FUDMA Journal of Sciences, Год журнала: 2024, Номер 8(5), С. 41 - 60

Опубликована: Сен. 17, 2024

This study designed, fabricated and evaluated a household water treatment system (HWTS) with primary aim of improving access to potable water. Typical turbid samples were collected from Opa River in Ile-Ife, Nigeria. The subjected by the system. Effects selected operational factors on performance was optimized using Taguchi technique. optimum values utilized for full typical similar available commercially. based ability remove pollutant turbidity samples. Cost analysis conducted types that are commercially available. revealed between 98.8% 100 % an overall 99.5 %. Time settlement, pore Size filter, Concentration Coagulant Turbidity Raw had impact HWTS. Significance in-order filter > time raw It concluded HWTS perfect compared filter. is economically effective sustainable (0.0575 US$ per day) (0.0639 – 0.1187 day). There no significant difference (individual overall) fabricated...

Язык: Английский