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All Journal Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Indonesian Green Technology Journal Jurnal Kesehatan Masyarakat (JKM) CENDEKIA UTAMA WARTA Jurnal Informatika Upgris JITEK (Jurnal Ilmiah Teknosains) HIGEIA (Journal of Public Health Research and Development) Journal of Health Education Edu Komputika Journal Varia Humanika Journal of Environmental Science Sustainable Abdi Masya Pawiyatan Jurnal Teknologi Lingkungan Lahan Basah Gema Lingkungan Kesehatan MANGGALI Jurnal Pengabdian dan Pemberdayaan Kesehatan Journal of Biomedical Sciences and Health
zulfa, nely
Universitas Ivet
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Sistem Monitoring dan Pendukung Keputusan Kualitas Udara di Kota Semarang Menggunakan IoT Mashuri, Agus Alwi; Zulfa, Nely
Jurnal Informatika UPGRIS Vol 8, No 1: Juni 2022
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jiu.v8i1.7532

Abstract

Air is one of the most important elements of life for living things in the world. For humans, the air is an element that is very concerned because it is related to health. In Jakarta, the Air Pollution Standard Index (ISPU) is ranked second as the capital city of a country with poor air quality. Air quality in Jakarta is monitored by an Air Quality Index (AQI) of 160 with parameters in the form of very small pollutant particles with a diameter of fewer than 2.8 micrometres (PM 2.8). The Indonesian government has made efforts to reduce the air pollution index, such as reducing the number of vehicles with odd-even systems, users of environmentally friendly transportation modes such as MRT, LRT, Trans and clearing green lands in the city centre.The purpose of this research is how we make a tool that can determine the quality of the air around us and can be carried (portable) anywhere easily. By the 4.0 industrial revolution that everything has been integrated with the Internet of Things (IoT) technology where the public can find out the air condition in real-time. In this research, later using the prototype method as a test. The main components are sensors consisting of MQ-6 (CO2 and smoke), MQ-7 (CO, LPG, CH4), MQ135 (Butane, AirQuality), and DHT-11 (Humidity, temperature)From the research that has been done where the air quality in urban areas has a low air quality index by measuring it using a prototype consisting of a gas sensor and Arduino microcontroller which has been made to produce an average CO2 of 25 ppm, CO 2330 which has exceeded the threshold, while NH3 1.23 and C4H10 1120 are still below the threshold. These values are influenced by pollutants generated by transportation such as motorbikes, cars, and land transportation
Health Risk Assessment of Lead (Pb) and Copper (Cu) Contamination in Sediments of Palu Bay, Indonesia Paundanan, Matius; Hikmah, Sitti Ainun; Zulfa, Nely
Gema Lingkungan Kesehatan Vol. 24 No. 1 (2026): Gema Lingkungan Kesehatan
Publisher : Poltekkes Kemenkes Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36568/gelinkes.v24i1.446

Abstract

Heavy metals are persistent environmental pollutants that tend to accumulate in coastal sediments and may pose long-term ecological and human health risks. This study evaluated the concentrations of lead (Pb) and copper (Cu) in surface sediments of Palu Bay, Central Sulawesi, Indonesia, and assessed potential non-carcinogenic and carcinogenic health risks through dermal exposure. Sediment samples were collected from ten stations representing residential areas, ports, river estuaries, and relatively open zones. Concentrations of Pb and Cu were analyzed using Atomic Absorption Spectrophotometry (AAS) after acid digestion. Sediment contamination was evaluated using the contamination factor (CF) and geoaccumulation index (Igeo), while human health risk assessment (HRA) followed U.S. EPA guidelines. Mean concentrations of Pb and Cu were 6.61 ± 3.64 mg/kg and 20.70 ± 8.83 mg/kg, respectively, and were below international sediment quality guidelines (CCME and ANZECC). CF values (<1) and negative Igeo values indicated low contamination levels. The hazard quotient (HQ) and hazard index (HI) for dermal exposure were below the threshold of concern (HI < 1), suggesting no significant non-carcinogenic risk. Carcinogenic risk (CR) for Pb was within the acceptable range (10⁻⁶–10⁻⁴). Overall, surface sediments in Palu Bay show low levels of Pb and Cu contamination and currently pose minimal health risk through dermal contact. The results provide baseline data to support future monitoring and coastal management strategies.
The Relationship Between Gender and Students' Knowledge and Attitudes Towards Healthy Snack Selection in Semarang City Public Elementary Schools Mulyawati, Isti; Zulfa, Nely; Sudrajat, Agus
Journal of Biomedical Sciences and Health Vol. 3 No. 1 (2026)
Publisher : Universitas Karya Husada Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34310/jbsh.v3.i1.292

Abstract

Background: The habit of eating snacks at school is part of the diet of elementary school students who need attention related to their nutritional quality. Knowledge and attitude are often considered determining factors in  choosing  healthy  snacks.  Objective:  This  study aims  to  analyze the relationship  between gender  and  students'  knowledge  and  attitudes  towards  choosing  healthy snacks  at  Semarang  City  State  Elementary  School.  Methods:  Quantitative  study  with  cross- sectional design. The sample consisted of 74 students taken from 21 State Elementary Schools in Semarang  City  using  quota  sampling  techniques.  Data  was  collected  through  a structured questionnaire and  analyzed  using  Chi-Square statistical  tests.  Results:  The univariate  analysis showed that the majority of respondents were female (59.5%), had good knowledge (89.2%), and had good attitudes (41.9%). The results of the bivariate analysis showed no relationship between gender  and knowledge of  healthy snack  selection  (p  value=  1.00)  and  no  relationship between gender and attitudes towards healthy snack selection (p value = 0.196).  Conclusion: Gender is not  a  distinguishing  factor  in students'  knowledge and  attitudes  towards healthy snacks.  This suggests  that  school  health  interventions  should  focus  more  on  strengthening  the  physical environment and the availability of healthy snacks in schools, regardless of gender. 
How far is Shrimp Head Waste Utilized? An Overview of Environmental Innovation Management Syahadat, Ray March; Zulfa, Nely
Indonesian Green Technology Journal Vol. 14 No. 2 (2025)
Publisher : Sekolah Pascasarjana, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2025.014.02.06

Abstract

This article aims to provide knowledge about the utilization of shrimp head waste in the perspective of environmental innovation management. The method was used by exploring articles through Google Scholar with Harzing's Publish or Perish software and using the keywords utilization of shrimp head waste. The article focuses on looking at the position slot777 of this topic in Indonesia as the largest archipelagic country in the world. Twenty articles published since 2019 were selected and analyzed descriptively. The results obtained, the processing of shrimp head waste can be grouped into three utilization groups. The three groups include: 1) utilization for agriculture, livestock, and fisheries, 2) utilization for food, and 3) utilization for other needs. In general, the processing of shrimp head waste for use is still in the form of products with low economic value. The suggested research direction in the future is shrimp head waste treatment, which has high economic value. The importance of this review is to provide knowledge on achieving environmental sustainability, particularly for Indonesia. It is also considered relevant for countries with coastal and island landscapes
Co-Authors Amarda, Pradangga Satriyaduta Anashir, Muhammad Iqbal Andriyani, Sofi Diah Anis Latifah, Anis Avilia, Dwi Aziz, Muhammad Syifa Prasetyo Chairunisa Nur Rarastiti Diah Rahayu Ningtias, Diah Rahayu Dwi Septiana Sari Farkhatunnisa, Alif Fauzizah, Ardha Dwi Hikmah, Sitti Ainun Isti Mulyawati Lesa Paranti Mashuri, Agus Alwi Matius Paundanan, Matius Nikmah, Zulfatun Norma Eralita Prasetyani, Henny Prisanty, Tiara Kristiani Raditya Ahmad Rifandi Rarastiti , Chairunissa Nur Ray March Syahadat Rizal Ichsan Syah Putra, Rizal Ichsan Rofi’i, Mohammad Sudrajat, Agus Umar Hidayat, Umar wafa, mochammad usman Wiji Lestari