During the summer, Taiwan's rains are primarily influenced by afternoon convection, the southwest monsoon, and Western Pacific typhoons. These weather systems less frequently pass through areas of industrial pollution, so the rain tends to be cleaner and have a higher pH.
至於夏季期間，台灣的降雨主要受到午後熱對流、西南季風、或是在西太平洋發展而成的颱風影響，過程中較少經過重工業污染區域，雨水自然較乾淨，酸鹼度也跟著提升。