Journal of Japan Society on Water Environment

Aliphatic Amine Interference in Indophenol Reaction for Ammonia-Nitrogen Determination and Its Possibility as Quantitative Method for Aliphatic Amines

Pub Date : 2023-01-01 DOI: 10.2965/jswe.46.1 S. Akao

Environmental Characteristics of Nutrients and Recent Changes in Blue-green Algae in the Aerobic Layer of Meromictic Lake Abashiri

Pub Date : 2023-01-01 DOI: 10.2965/jswe.46.47 H. Mikami, Seiki Igarashi, M. Hatakeyama, Takaaki Watanabe, Takumi Iida, T. Kawajiri, Kaii Suezawa

Effects of Land Use Type on Water Quality and Organisms in a Small River of the Shizukuishi River Basin, Iwate Prefecture, Japan

Pub Date : 2023-01-01 DOI: 10.2965/jswe.46.61 Morio Tsuji, Tomoya Takahashi, Masaki Suzuki