His clinic has seen many more cases of asthma and allergic rhinitis in recent years. In particular, there are high rates of respiratory ailments among those who leave the area to attend college and then return on vacation. There are also people who had never previously been asthmatic but suddenly suffer bouts of asthma once they move to Lukang. These cases have alerted him to the rapid deterioration of local air quality.
在鹿港執業十多年的名醫葉宣哲觀察指出，診所中近年氣喘和過敏性鼻炎的病人明顯增加，尤其有些在外地讀書的大學生，一放假回家就出現呼吸道疾病，或原本健康的外地人，搬來鹿港居住後卻發生氣喘，讓他警覺到當地空氣品質正迅速惡化中。