Publication Search

This study aims to formulate an engineering strategy for water quality management and pollution control in the Tiku Sub-watershed, North Musi Rawas Regency. The study used a descriptive approach by integrating selected technical data from a dissertation-based assessment with semi-structured interviews involving 20 key informants representing technical agencies, village and subdistrict governments, community leaders, artisanal and small-scale gold mining actors, farmers, and riverbank communities. The analysis focused on water quality status, water availability and demand, pollution sources, perceived impacts, implementation constraints, and priority interventions. The results showed that the Tiku Sub-watershed is under significant environmental pressure. The average pollution index was 6.65, indicating a moderately polluted status, while mercury, cadmium, phosphate, and ammonia were the dominant parameters of concern. Surface water availability remained relatively adequate at 45,842,699.79 m3/year, and the average Criticality Ratio was 0.266; however, the water pollution carrying capacity was poor. Interview results indicated that mercury use and processing waste from artisanal gold mining were the most urgent issue (35%), followed by land-cover change and riparian degradation. The recommended strategy combines mercury-free processing technology, alternative livelihood development, cross-sectoral supervision, riparian rehabilitation, and transparent water-quality monitoring. The findings imply that watershed engineering should integrate technical, institutional, and socio-economic interventions.

Artisanal and small-scale gold mining (ASGM) provides short-term income for rural communities but frequently creates environmental, safety, and governance problems when it operates outside formal control. This study aimed to analyze the existing condition of ASGM, identify the driving and inhibiting factors of its arrangement, describe the perceived impacts, and formulate strategic directions for ASGM arrangement in Karang Jaya District, North Musi Rawas Regency, Indonesia. A qualitative descriptive approach was applied using semi-structured interviews supported by secondary data on the study area, population, and agricultural land use. Twenty-two informants represented district officials, village officials, technical agencies, company representatives, community leaders, nearby residents, and ASGM actors. Data were analyzed through reduction, presentation, interpretation, and conclusion drawing. The findings show that ASGM development is driven by gold potential, mining history, household economic pressure, limited alternative employment, and weak field control. The main impacts include land degradation, open mining pits, landslide and occupational accident risks, and mercury-related water and soil contamination. The recommended strategy combines alternative livelihood development, skills training, local economic institutional strengthening, gradual area monitoring, land rehabilitation, and mercury-risk education.

SR12 Herbal Cosmetics is a company engaged in the field of herbal and skin care. Founded in 2015 byToni Firmansyah, S. Farm., Apt. and Asrianty Salam, Farm. This company has a vision to provide benefits to many people through the herbal and skin care products they produce. SR12 Herbal Cosmetics products are formulated based on research from certified scientists, and have been tested at the Sucofindo Laboratory, are free of mercury and hydroquinone, and have been registered with the Indonesian Food and Drug Supervisory Agency (BPOM RI). SR12 Herbal Cosmetics has several factories in West Java Province and has an extensive distribution network with hundreds of distributors and tens of thousands of partners throughout Indonesia. The goal to be achieved is to produce a management information system model including a management information system for PT SR12 Herbal Cosmetics. The research object chosen is a company in the field of cosmetics and skin care which has its head office in Gunung Sindur, West Java. This selection aims to form a management information system design model that is able to produce relevant and timely information for planning, controlling, decision making and evaluating the performance of activities. For the Web-Based Instagram Content Management Information System Design project to Support SR12 Herbal Cosmetics' Brand Awareness, I used Agile (Scrum) due to the dynamic nature of digital marketing and potential changes to the Instagram API or business needs. This allowed SR12 to get core functionality faster and provide iterative feedback, ensuring the system built was truly relevant to their brand awareness needs.

Takaras River is a river basin that is vulnerable to pollution, particularly from the mercury usage in small-scale gold mining. This study aims to identify water quality based on mercury (Hg)and pH levels in the Takaras River. Samples were taken at two locations using a purposive sampling method. Results showed indications of mercury use on former gold mining land around the Takaras River altought the mercury content level was below 0.075 µg/L or 0.00075 mg/L in sample 1 and 2. Based on the test results, the acidity level (pH) in the two water samples from Takaras River is 3.86 and 3.84 in sample 1 and 2, compared to the maximum pH quality standard of 6-9 for Class II water, it is concluded that the scale of acidity in Takaras River is very low, indicating that the water quality in the Takaras River is highly acidic, abnormal, and shows signs of serious pollution. The implications of low pH levels in the Takaras River can cause damage to the Takaras River ecosystem, a decline in soil quality and fertility, and an increase in heavy metal toxicity in the environment surrounding the river.

The amalgamation and flotation methods are widely used by miners because the methods are simple, fast and easy. The purpose of this study was aims to test the effectiveness of gold recovery using the amalgamation and flotation methods in conventional gold processing. The research methods used were observation and testing using the amalgamation and flotation methods in conventional gold processing. The effectiveness analysis was carried out by calculating the percentage of gold produced in the amalgamation and flotation processing methods. The test was carried out on 10 samples, each weighing 10 kg. The amalgamation process used a Hg solution, while flotation used a detergent reagent. The total primary gold processing using the amalgamation method was 11.46 grams, while the total primary gold recovery using the flotation method was 12.15 grams. The results of gold processing using the flotation method were higher than those using amalgamation because flotation can separate gold more efficiently from ore containing various impurity minerals. Meanwhile, the amalgamation method, which uses mercury, tends to be less effective and loses some of the gold because it only binds very fine and dispersed gold particles, while flotation can handle ore with lower gold content and larger gold particles.

This study aims to evaluate the level of heavy metal pollution and the potential ecological and human health risks in the waters of Selangan, Bontang City. The research focuses on analyzing the concentrations of iron (Fe) and mercury (Hg) in sediment, considering that both elements are toxic, persistent, and capable of bioaccumulating within the food chain. The study was conducted over six months, from January to June 2023, at four sampling stations representing the environmental conditions of Selangan waters. The methodology included sediment sampling, sample preparation through drying and grinding, and laboratory analysis using Inductively Coupled Plasma–Optical Emission Spectrometry (ICP-OES) to determine Fe concentrations. The results were then compared with quality standards established by the Washington Annotated Code 173-204-320 and Indonesia’s National Agency of Drug and Food Control (BPOM) Regulation No. 5 of 2018. The findings indicate the presence of heavy metal contamination across all sampling stations. Fe concentrations ranged from 2.35 mg to 6.308 mg, significantly exceeding the permissible limit of 0.3 mg/L. Meanwhile, Hg concentrations ranged from 0.015 mg to 0.028 mg, also surpassing the standard threshold of 0.001 mg/L. These results clearly demonstrate heavy metal pollution in the Selangan waters, posing potential threats to marine ecosystem health and coastal communities. Regular monitoring and mitigation measures are urgently recommended to prevent further environmental degradation.

This research aims to conduct a juridical analysis of cases of circulation of illegal cosmetic products. The method used is normative-dogmatic juridical research, which focuses on relevant legal doctrines and principles. The approach used is a conceptual approach and a statutory approach, with primary legal sources including the Health Law, BPOM Regulations, the Criminal Code (KUHP), and the Criminal Procedure Code (KUHAP). Secondary legal sources include journals, books, and other references that support the analysis. The results show that the distribution of illegal cosmetic products that do not meet safety and quality standards, as in the case of the defendant Megawati binti Rahmat alias Mega in verdict number 39/Pid.Sus/2020/PN Slr, is a serious violation of health law and consumer protection in Indonesia. Based on the principle of liability based on the element of fault, the defendant can be held legally responsible because it is proven that she distributed cosmetics without a distribution permit containing hazardous substances such as mercury. The Panel of Judges considered that the defendant's actions fulfilled the elements of unlawful acts in accordance with Article 1365 of the Civil Code and Article 196 of Law of the Republic of Indonesia Number 36 of 2009 concerning Health. The implications of this research emphasize the importance of strict law enforcement and the application of the principle of responsibility to protect public health from dangerous cosmetic products.

Mercury is a highly toxic and bioaccumulative heavy metal. Despite its prohibition, mercury is still frequently found as a contaminant in cosmetic products, particularly in whitening products. This article aims to review and present various findings from previous studies on mercury levels in cosmetic preparations marketed in Indonesia, analyzed using the Atomic Absorption Spectrophotometry (AAS). The method employed is a literature review of scientific articles published between 2015 and 2025, selected based on their focus on mercury analysis in cosmetics use of the AAS method. The review results show that the majority of whitening creams and lotions contain mercury levels exceeding the safety limits set by the Indonesian National Agency of Drug and Food Control (BPOM RI), with some samples showing extremely high concentrations reaching thousands of ppm. In contrast, other preparations such as powders, hair dyes, and deodorants generally have low or undetectable mercury levels. These findings indicate a lack of understanding regarding mercury and its dangers, especially regarding compliance with regulations on cosmetic products, especially those sold online. The conclusion of this review emphasizes the need for enhanced regulatory enforcement, stricter supervision, and increased public education to protect consumers from the health risks posed by mercury-containing cosmetics.

This study explores the dual impact of artisanal gold mining on economic livelihood and environmental sustainability in Tedeboe Village, Rampi District, North Luwu Regency. Employing a qualitative case study design, data were gathered through in-depth interviews with four key informants—including the village head and three local miners—and through direct field observation. Data were analyzed using Creswell’s qualitative analysis framework, encompassing coding and thematic development to capture nuanced insights. The findings indicate that artisanal gold mining has significantly improved household income, especially in meeting basic needs and funding education. However, the sector’s informal nature and high dependency expose the community to economic volatility. Moreover, despite limited use of chemicals, awareness of mercury’s environmental and health risks is rising among miners. Environmental degradation, particularly soil and water pollution, alongside potential respiratory hazards, emerges as a critical concern. The study underscores the urgent need for sustainable mining practices, stronger local regulation, and capacity-building through education and economic diversification. These findings advocate for a balanced approach to rural development—one that harmonizes economic benefits with ecological resilience and community well-being.

Mercury (Hg) is illegally used in cosmetics as a skin whitener because it can inhibit the formation of melanin, but it poses health risks as it can accumulate in the body. The use of mercury-containing whitening lotions can cause serious side effects. This study aims to identify the presence of mercury in handbody lotion sold in online shops in Central Java without BPOM approval. The method used is Descriptive Qualitative with a color reaction test. The results show that out of 6 samples tested, samples A, B, C, D, and E were mercury-negative, while sample F tested positive for mercury based on two tests, namely the Rapid Test Kit and the Amalgam formation test.

This research studies consumer protection against the dangers of using mercury skincare for health, so that consumers, especially women, can be more careful in choosing and using skincare. Mercury is an ingredient that is often added to skincare ingredients that function to produce white facial skin quickly. Mercury can flow through the blood throughout the body which can cause death. However, many consumers among women are more easily tempted to use mercury-based skincare because they see instant results. Skincare made from mercury is strictly prohibited from use because of its content which can cause damage to organs and nerves of the body by a substance such as chemicals and cause abnormalities in the functioning of the health system. The purpose of this study is to analyse consumer protection against cases of skincare products containing mercury such as the case of lightening cream and night cream brand MH.    

Honey is derived from plant nectar and pollen collected by bees. Honey contains natural sugars and nutrients but is prone to contamination by heavy metals such as mercury, copper, and cadmium from the environment. Honey quality standards stipulate maximum limits of contamination according to SNI 8664:2018. This study examined copper, mercury, and cadmium levels in native, cultivated, and branded honey using ICP-AES. Samples were randomly collected at the Laboratory of Pharmacy Faculty of University 17 August 1945 and metal levels were determined at the Regional Health Laboratory of DKI Jakarta Province from April-July 2024. Results showed all samples contained copper below the maximum limit of 5.0 mg/kg in the order of 0.243; 0.399; 0.297 mg/kg. Cadmium and mercury in the three honeys were undetected according to SNI's respective maximum limits of 0.2 and 0.03 mg/kg. Therefore, honeys of the three types met quality standards and are safe for consumption.    

Heavy metals are chemical elements that can be toxic even at low concentrations. The presence of non-essential heavy metals in the environment can contaminate soil, water, and air. The consequences of this contamination affect the living organisms in the surrounding area. For instance, heavy metals in soil and water can contaminate plants growing in the region, which may then be processed as daily food sources, potentially impacting the health of those who consume them. Heavy metals such as lead (Pb), cadmium (Cd), mercury (Hg), and arsenic (As) are non-essential heavy metals that are of primary concern due to their toxic nature. The presence of heavy metals in food can hinder the growth and development of children, making it crucial to implement educational initiatives and preventive measures to reduce heavy metal contamination in daily consumed foods. This activity involves educating people about the dangers of heavy metal contamination in food and the actions that can be taken to reduce the concentration of heavy metals in the food we consume.

The company as a place for providing employment, requires accepting workers the detention of the employee's original diploma as a guarantee so that employees cannot violate the rules in the company. Withholding of diplomas is a form of human rights violations that are often ignored by job providers. The purpose of writing this study is to determine the role of the government in handling cases of withholding original diplomas carried out by employers and protecting the human rights of employees to recover original diplomas withheld. The need for legal protection for employees who experience diploma withholding. The research method used by the author in this thesis is using normative research methods with literature research which is research on laws and regulations (Statute Approach) and literature or reading materials and obtained experts and scholars (Conceptual Approach) related to the material discussed. Based on research conducted in the results of the study, there are still many entrepreneurs holding diplomas. Although employers and workers enter into an employment agreement that does not include a clause withholding diplomas, but the original diplomas are still withheld on the basis of mutual trust between employers and employees. The actions of employers have been included in human rights violations, this results in employees not being able to apply for jobs elsewhere that are better in accordance with their abilities. There is a conclusion that there is a legal vacuum, there is no specific law prohibiting the withholding of diplomas.

The concept of beauty currently circulating in society is having white skin. There are a number of whitening products that contain dangerous ingredients such as mercury and hydroquinone that are not permitted by BPOM. Beauty products are currently being discussed, not only because of the products that are flooding the market, but also because of the impact of using these products. This research aims to analyze the quality of HN skincare products based on student perceptions in a business context. This research method uses descriptive quantitative. The sample used was 181 Bina Bangsa University students who were willing to become respondents and were taken randomly. The results of this research show that as many as 8 questions significantly show that Bina Bangsa University students do not use and are less interested in using HN products on the grounds that they are dangerous.

This research is a data collection technique in this research using literature study. The library study collection technique is a study used to collect data and information with various assistance available in the library, for example books, magazines, documents, or reading various journals that are needed. Literature study also studies various reference books and previous research results so that it can be useful for obtaining a material basis regarding the matter to be researched which discusses issues regarding the solar system by providing concise basic concepts. The topics discussed are the characteristics and various members of the planets. solar system. The solar system is one of the materials contained in natural science. In the learning process, the solar system consists of a collection of celestial bodies centered around a star called the sun, and all celestial bodies are connected based on their gravity. There are eight known planets in the solar system, namely Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Based on the position of the planets, there are planets called inner planets and outer planets. The purpose of this article is to analyze the solar system, which includes the definition of the solar system, the characteristics of the members of the solar system, as well as the various planets and their characteristics which will be discussed in detail in the results and discussion sections.

Merkuri (Hg) merupakan salah satu unsur yang paling beracun dari logam berat yang ada dan apabila terpapar pada konsentrasi yang tinggi maka mengakibatkan kerusakan otak secara permanen dan kerusakan ginjal. Di dalam air, logam merkuri dapat mengalami biotransformasi menjadi senyawa organik metil merkuri atau fenil merkuri akibat proses dekomposisi oleh bakteri. Senyawa organic tersebut diserap oleh jasa renik yang akan  masuk dalam  rantai makanan. Ini akhirnya tejadi akumulasi dan biomagnifikasi merkuri dalam  tubuh biota laut seperti ikan, udang dan kerang yang pada akhirnya masuk kedalam tubuh manusia yang mengkonsumsinya. Tujuan pengabdian kepada masyarakat adalah melakukan pengenalan zat berbahaya “ Merkuri”, bahaya penggunaan, dan cara mendeteksi kandungan merkuri. Metode yang digunakan saat penyuluhan metode ceramah dan diskusi kemudian dilanjutkan dengan workshop atau pelatihan dimana peserta bergantian maju kedepan untuk melakukan pengujian merkuri dengan melihat bentuk, warna dan bau serta melakukan pengujian makanan secara langsung terhadap ikan yang mengandung merkuri kemudian dilakukan evaluasi dan bimbingan berkelanjutan. Hasil capaian dari pengabdian masyarakat ini meliputi evaluasi mengenai merkuri, karakter ikan mengandung merkuri sebelum penyuluhan dan setelah penyuluhan

Hypertension is a condition where systolic blood pressure is more than 120 mmHg and diastolic pressure is more than 80 mmHg which can be measured in millimeters of mercury (mmHg). In addition to pharmacological therapy, hypertension management can also use non-pharmacological therapies, one of which is foot soak therapy in warm water. The purpose of this research is to determine effect of warm water foot soak therapy on blood pressure in patients with hypertension at Bailang Health Center Manado City. This study uses a pre-experimental method with a one-group pretest-posttest design without a comparison group. The population with the result that 165 people patients diagnosed with hypertension. The sampling process used a probability sampling technique  with the result that 15 respondents. Data collection was observations. The data were analyzed using the Wilcoxon test with a significance value (?) of 0.05. From the results of the study was that there was an effect of warm water foot soak therapy on blood pressurein patients with hypertension at Bailang Health Center Manado City with a value of p = 0.008. This p value is smaller than the value of a = 0.05. The conclusion of this study was that there was an effect of warm water foot soak therapy on blood pressurein patients with hypertension. This p value is smaller than the value of a = 0.05. It is hoped that the respondents will be able to take advantage of warm water foot soak therapy as an alternative in lowering blood pressure and this can also be done regularly.

Penambangan yang dilakukan di Indonesia adalah penambangan emas skala kecil, yang sering disebut dengan istilah PETI (Penambangan Emas Tanpa Izin). Kegitan ini biasanya menggunakan metode amalgasi dengan merkuri (Hg) untuk mendapatkan biji emas. .Merkuri (Hg) merupakan salah satu unsur yang paling beracun dari logam berat yang ada dan apabila terpapar pada konsentrasi yang tinggi maka mengakibatkan kerusakan otak secara permanen dan kerusakan ginjal. Di dalam air, logam merkuri dapat mengalami biotransformasi menjadi senyawa organik metil merkuri atau fenil merkuri akibat proses dekomposisi oleh bakteri. Senyawa organic tersebut diserap oleh jasa renik yang akan masuk dalam rantai makanan. Ini akhirnya tejadi akumulasi dan biomagnifikasi merkuri dalam tubuh biota laut seperti ikan, udang dan kerang yang pada akhirnya masuk kedalam tubuh manusia yang mengkonsumsinya. Penelitian ini menggunakan metode Mercury Analyzer yang dilakukan pada sampel ikan yang berbeda pada titik pengambilan yang berbeda pula untuk melihat ada tidaknya pencemaran merkuri di lingkungan pertambangan. Penelitian ini dilakukan di Kecamatan Teluk Kaiely Kabupaten Buru. Hasil penelitian ini menujukan bahwa 2 dari 3 sampel dinyatakan terkandung merkuri dengan kadar pada sampel di Kaiely ikan Kerong – Kerong (Terapon jarbua F.) sebesar 0,001 mg/L dan sampel di Kaki Air dengan ikan Pilchard Eropa (Sardina Pilchardus) sebesar 0,0003 mg/L. Sampel di Seith ikan Layang Biru (Decapterus macarellus) sebesar 0,00 mg/L atau tidak terdeteksi merkuri. Hasil ini menunjukan bahwa ikan masih layak dikonsumsi manusia karena dibawah baku mutu batas kandungan merkuri pada ikan yang dikonsumsi manusia yaitu sebesar 0,5 mg/kg

Mercury (Hg) is a metal that is commonly found in water and has toxic properties, so it is very dangerous for human health and the environment. Mercury in the environment can come from gold mining activities such as in Pesanggaran Village, Banyuwangi. Based on information from the surrounding community, the waste disposal flowed into the river and it was feared to affect the quality of river water in this area. This study aimed to analyze the mercury level in the river water using the UV-Visible Spectrophotometer method, where river water samples were taken from the upstream, middle, and downstream parts. Determination of mercury levels was carried out at the STIKES Banyuwangi Laboratory. The results showed that the Hg content in the river water around the gold mining area of Pesanggaran Village, Banyuwangi ranged from 0.031 to 0.033 mg/L. The Hg level of river water in this area was above the threshold and it was not recommended to use as drinking, bathing, cooking or washing. However, it is necessary to analyze Hg levels using other methods, such as the AAS (Atomic Absorption Spectroscopy) method which is more expensive but more accurate results will be obtained.