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This paper analyzes the concentration data of PM 2.5 , SO 2 , NO 2 , CO and O 3  recorded at 25 monitoring points in northern Taiwan in 2015. The geographical distribution and seasonal changes of PM 2.5  are assessed. The geographical distribution is higher in cities than in rural areas, and higher in the west and the middle than the east. In the seasonal changes, the pollution is the most serious in spring and lightest in autumn. The author uses Pearson correlation coefficient to analyze the correlation between PM 2.5  and gaseous pollutants (SO 2 , NO 2 , CO and O 3 ). The PM 2.5  concentration in Northern-Taiwan Province has a strong correlation with SO 2 , NO 2  and CO, and a weak correlation with O 3 .

Distribution Characteristics and Influencing Factors of PM2.5 in Northern-Taiwan

Distribution Characteristics and Influencing Factors of PM_2.5 in Northern-Taiwan