Title: Kwanghae (pʻyesu) pangjirŭl wihan Kangnŭng tʻanjŏn ŭi sansŏng pʻyesuhwa pangji taechʻaek yŏnʼgu =
Subjects: Waste disposal, Coal mines and mining, Acid pollution of rivers, lakes, Rivers
Places: Korea (South), Kangwŏn-do