Samim Obaid
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Samim Obaid has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Hardianti Alimuddin
Department of Architecture and Civil Engineering, Toyohashi University of Technology, 1–1 Hibarigaoka, Toyohashi, Japan
1 shared publication - Kuriko Yokota
Department of Architecture and Civil Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tenpaku, Toyohashi 441-8580, Aichi, Japan
1 shared publication - Nguyen Minh Ngoc
Department of Architecture and Civil Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tenpaku, Toyohashi 441-8580, Aichi, Japan
1 shared publication - Pertiwi Andarani
Department of Environmental Engineering, Faculty of Engineering, Diponegoro University, Semarang, Indonesia, Indonesia
1 shared publication - Takanobu Inoue
Department of Architecture and Civil Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tenpaku, Toyohashi 441-8580, Aichi, Japan
1 shared publication
Latest Publications
- Open Access
Baseflow and Stormflow Zinc Loads in a Small Agricultural River Catchment Influenced by an Industrial Area
A stringent environmental quality standard for zinc (Zn) has been enacted by regulators because of its toxicity to aquatic life. This study’s objective was to evaluate the variability of Zn concentrations and fluxes in the baseflow and stormflow and to estimate the contribution of Zn from point and non-point sources. By using high-resolution temporal sampling, the suspended solids (SS), iron (Fe), and Zn concentrations were measured in a small agricultural river catchment. Fe, as the natural non-point source, and Zn were evaluated using the end member mixing analysis (EMMA) to identify the source apportionment (point and non-point). The results indicate that in the baseflow, Zn mainly originated from point sources and was possibly discharged by manufacturing industries. By contrast, the non-point sources (diffuse sources) were responsible for extremely high SS, Fe, and Zn levels in the stormflow. In addition, Zn discharge during the stormflow was 93 times higher than that during the baseflow. According to the EMMA, approximately 74% of the Zn was from point sources. River management can be improved if Zn point sources are adequately treated. During a storm event, it is also important to control the particulate Zn released into the river.
Open AccessBaseflow and Stormflow Zinc Loads in a Small Agricultural River Catchment Influenced by an Industrial Area
A stringent environmental quality standard for zinc (Zn) has been enacted by regulators because of its toxicity to aquatic life. This study’s objective was to evaluate the variability of Zn concentrations and fluxes in the baseflow and stormflow and to estimate the contribution of Zn from point and non-point sources. By using high-resolution temporal sampling, the suspended solids (SS), iron (Fe), and Zn concentrations were measured in a small agricultural river catchment. Fe, as the natural non-point source, and Zn were evaluated using the end member mixing analysis (EMMA) to identify the source apportionment (point and non-point). The results indicate that in the baseflow, Zn mainly originated from point sources and was possibly discharged by manufacturing industries. By contrast, the non-point sources (diffuse sources) were responsible for extremely high SS, Fe, and Zn levels in the stormflow. In addition, Zn discharge during the stormflow was 93 times higher than that during the baseflow. According to the EMMA, approximately 74% of the Zn was from point sources. River management can be improved if Zn point sources are adequately treated. During a storm event, it is also important to control the particulate Zn released into the river.