Dampak pajanan particulate matter 2,5 (pm 2,5 )terhadap gejala penyakit paru obstruktif (PPOK) kronis eksaserbasi akut pada pekerja di Pelabuhan Tanjung Priok, 2018 = Particulate matter 2,5 (pm 2,5) exposure on symptoms of acute exacerbation chronic obstructive pulmonary diseases (AECOPD) in Port of Tanjung Priok field worker 2018