Peer review declaration

All papers published in this volume of IOP Conference Series: Earth and Environmental Science have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. • Type of peer review: Double-blind • Conference submission management system: online using website • Number of submissions received: 104 • Number of submissions sent for review: 104 • Number of submissions accepted: 69 • Acceptance Rate (Number of Submissions Accepted/Number of Submissions Received X 100): 66,34 • Average number of reviews per paper: 2 • Total number of reviewers involved: 10 • Any additional info on review process: The articles have been sent by authors, it reviewed by the editors to get approval. Next, the articles were sent to the reviewers. The reviewers reviewed articles based on the guideline from IOP. If the articles fail to meet with the guideline, the reviewers gave recommendations to the editor to reject or to accept the articles based on the guidelines of IOP. For the articles which got accepted by reviewers, the authors revised articles with help of the editor and follow the suggestions from reviewers. • Contact person for queries: Kadhung Prayoga (email: undip faasconference ; phone: +62 857 3174 3929)