ANALYSIS OF AIR POLLUTION IN MALAYSIA: IMPLICATIONS FOR ENVIRONMENTAL CONSERVATION USING GRANGER CAUSALITY AND PEARSON CORRELATION

• 发表在: INTERNATIONAL JOURNAL OF CONSERVATION SCIENCE
• Main Authors: Abd Rais, Zulkifli; Ramli, Norazrin; Noor, Norazian Mohamed; Hamid, Hazrul Abdul; Ul-saufie, Ahmad Zia; Mahmad, Mohd Khairul Nizam
• 格式: 文件
• 语言: English
• 出版: Romanian Inventors Forum 2025
• 主题: Art
• 在线阅读: https://www-webofscience-com.uitm.idm.oclc.org/wos/woscc/full-record/WOS:001440748600009
• ISSN: 2067-533X; 2067-8223
• DOI: 10.36868/IJCS.2025.01.09

This study investigates the relationships between air pollutants (PM10, SO2, NO2, O-3, CO) and meteorological factors (temperature, relative humidity, wind speed) across five states in Malaysia: Seberang Perai, Shah Alam, Nilai, Larkin and Pasir Gudang. Using time-series data from 2017 to 2021, we applied Granger causality and Pearson correlation to explore the predictive relationships and linear associations between these variables. Granger causality provided insights into temporal precedence, revealing significant predictive relationships such as temperature Granger-causing PM(10 )and O(3 )in Nilai and Shah Alam. Meanwhile, Pearson correlation highlighted strong linear relationships, such as the positive correlation between PM(10 )and wind speed in Shah Alam and the negative correlation between humidity and O(3 )across several stations. By comparing both methods, we show how combining Granger causality with Pearson correlation can enhance environmental modelling, offering a comprehensive approach to air pollution prediction. This integration provides robust insights into the dynamics of air quality, which are critical for developing effective pollution control strategies.