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: Single-blind • Conference submission management system: Easychair • Number of submissions received: 145 • Number of submissions sent for review: 137 • Number of submissions accepted: 78 • Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100): 53.7% • Average number of reviews per paper: 2-3 reviews • Total number of reviewers involved: 47 • Any additional info on review process: - All paper has been checked for its similarity index by using IThenticate plagiarism detection software. Similarity index threshold is 20 %. - After revision has been submitted by author, the committee recheck the paper to ensure if the review of reviewer has been accommodated in the paper. Further correspondence with author is done if necessary, to improve quality of paper based on contents and format. • Contact person for queries: dhimas@ne.its.ac.id