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All Journal Jurnal Sains Teknologi dan Lingkungan (JSTL) ORBITA: Jurnal Pendidikan dan Ilmu Fisika Media Kesehatan Politeknik Kesehatan Makassar Jurnal Pendidikan Fisika dan Teknologi Jurnal Abdi Insani JOURNAL OF INFORMATION SYSTEM RESEARCH (JOSH) Journal Islamic Economics Ad Diwan Lambda: Jurnal Ilmiah Pendidikan MIPA dan Aplikasinya Media Implementasi Riset Kesehatan
Andini, Mira
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The Influence of the Tide Levels on the Water Electrical Conductivity Parameter in the Estuary Area: In-Site and Real-Time Measurement Alaydrus, Alfina Taurida; Budianto, Arif; Rahayu, Susi; Andini, Mira; Akhyar, Halil; Anggriani, Ni Ketut
Jurnal Pendidikan Fisika dan Teknologi (JPFT) Vol 11 No 2 (2025): July - December
Publisher : Department of Physics Education, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpft.v11i2.10881

Abstract

One area that requires attention in water quality studies is the estuarine ecosystem. Estuaries are transition zones connecting freshwater and marine waters, thus possessing unique environmental dynamics. However, there is limited information regarding the effect of sea tides in the area on local estuary water quality. Therefore, this study aims to identify the existing relationship between sea tide levels and EC values, using an IoT-based system that is portable, lightweight, and capable of operating in real time. This study was conducted over five days in Senggigi village, Batulayar, West Nusa Tenggara, Indonesia. The collected data focused on the EC parameter's water quality levels at different tide levels, which were monitored using the self-developed system. This system was developed using an EC sensor, a microcontroller, and a wireless internet router (for wireless data communication via ThingSpeak.com). This system was also equipped with a pH sensor, a TDS sensor, and a water temperature sensor. The recorded data show that the resulting data are valid and highly accurate, and that the system is ready for examination at the measurement area. The resulting data show that the correlation between tide level and EC value is logarithmic, with a regression coefficient of 0.934. The EC level was about 20.42 – 62.54 mS/cm, depending on the tide level. It can be concluded that the tide level indeed influences the EC parameter in the estuary area. Moreover, TDS plays an important role in regulating EC levels, underscoring the need to systematically measure this parameter in any estuarine water-quality study.
Integration of Electrostatic Precipitator-Ionizer-HEPA Filter for a Low Power Air Filtration System Budianto, Arif; Andini, Mira; Hadi, Kasnawi Al; Mardiana, Laili; Qomariyah, Nurul; Hudha, Lalu Sahrul; Devitanala, Titi
Lambda: Jurnal Ilmiah Pendidikan MIPA dan Aplikasinya Vol. 6 No. 1 (2026): April
Publisher : Lembaga Bale Literasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58218/lambda.v6i1.2744

Abstract

Air pollution has become an important issue due to its impacts on human health and the environment. Especially indoor air pollution has more attached many concerns because humans also spend their time every day indoors. Indoor air pollutants in terms of particulate matter (PM) in different size distribution and gasses come from different sources such as smoke, hair spray, mosquito disinfectant, cooking, etc. The air purifier has become popular in the pandemic era at the being. In this research, we developed an indoor PM purification system technology by integrating three filtering methods: HEPA filter, electrostatic precipitator, and an ionizer to clean air by reducing PM concentration. The purpose of this study is to obtain the indoor purification system capable of cleaning non-bioaerosol PMs. The investigation was conducted in a chamber using several particulate matter sources. From both PM sources, it can be concluded that the purification system works well to purify the air in the tested chamber. The measurements of the different PM size distribution concentrations show that the system has the purification efficiency of 90±1% (non-bio fine particle) and 91±1% (non-bio coarse particle).
Co-Authors Abizar Agustian Ipa Alfina Taurida Alaydrus Anggriani, Ni Ketut Arif Budianto Aswita Amir Budirman, Budirman Devitanala, Titi Fajarica, Shinta Desiyana Hadi, Kasnawi Al Haerani Haerani Halil Akhyar Hartono, Rudy Hasanah, Besse Hasanah, Besse Uswatun Hasanah, Khofizzatul Khaer, Ain Lala, Manji Lalu Sahrul Hudha Mardiana, Laili Mawardi Nurfadilah Nurfadilah Nurul Qomariyah Pranahita, Dewa Dwi R. Rusli Simarmata, Linda Puspa Ayu Sirait, Barthy Ladi C. Sitanggang, Intan Susi Rahayu Syarif, Haerani Ulil Albab Wardi, Palaivia Harman Yaumil Fachni Tandjungbulu