Environmental Standards Research Articles

Traditional Legal Concepts under Fire? Business and Human Rights at the International, National and EU Levels

Abstract Over the past decade, business actors, in particular transnational corporations, have been increasingly called to respect human rights and environmental standards in their own operations and in their supply chains. However, the idea of obliging companies to respect human rights throughout their supply chains requires legal changes at international, EU and national levels that have proved hard to achieve. A common explanation for the slow progress in these areas is the strong lobbying of global economic players who successfully obstruct the necessary legal reforms. Conversely, the present contribution aims to show that one of the reasons for the slow progress in adopting the necessary legal reforms is that imposing such obligations on companies may challenge certain traditional legal concepts of international law, as well as the public, civil and criminal laws of many, if not most, countries around the world, and critically examines the response of different legal systems to these legal challenges.

The European Green Deal and prospects for Ukraine

In January 2020, the European Union launched the European Green Deal, a comprehensive programme for the transition to new environmental standards in all sectors of the economy with the aim of making Europe the first carbon-neutral continent. Given Ukraine's European ambitions, it is important for it to understand the requirements of the Green Deal and assess the possibilities of taking these requirements into account in the post-war reconstruction of Ukraine. Purpose. To examine the requirements and current achievements in the implementation of the European Green Deal with a view to the prospects of Ukraine's post-war recovery. Results. Based on the EU regulations, current thematic reports, statistics and other open-source publications, the article analyses the main components of the European Green Deal in the context of plans and current achievements in their implementation in the following areas: legislative support, emissions trading system, carbon emissions regulation mechanism at the EU border, transport, energy, construction, agriculture and land use, ecosystem and biodiversity restoration, financial support of the green transition, science and education. Some promising directions of post-war recovery of Ukraine in the context of the Green Deal are considered. Conclusions. Despite the harsh criticism of the European Green Deal, it is vital to overcome the most acute environmental crisis in history, which threatens sustainable development and possibly the very existence of humanity. During the first 3 years of the Green Deal implementation, significant progress has already been made in reducing greenhouse gas emissions, although there are still some difficulties and obstacles. Ukraine has a significant potential for post-war restoration of the energy and industry sector in line with environmental requirements, but this will require significant investments.

Intelligent Water Quality Testing Device based on Internet of Things Technology

Water quality testing is an important environmental testing standard. However, at present, Internet of Things water quality testing products generally have problems such as single function, complex interface, and short sensor life. The design of this paper is a device with intelligent water quality detection technology, including the independent design of the sensor interface standard, the sensor automatic recognition, plug and play; The sensor is equipped with a lifting mechanical structure to avoid long-term soaking of the sensor and increase the service life of the sensor by 35%. At the same time, combined with intelligent Internet of Things, big data analysis and other technologies, help relevant departments to grasp water quality information in a timely and accurate manner, early warning and forecasting of major regional water pollution accidents, supervision of pollutant discharge, and implementation of control systems to provide help. It is mainly used to monitor the water quality data of small and medium-sized reservoirs, rivers and lakes to achieve intelligent management within the jurisdiction.

SECONDARY POLYMERS AS A PROSPECTIVE RAW MATERIAL FOR THE PRODUCTION OF HIGH-OCTANE AUTOMOBILE GASOLINE

The article analyzes the possibility of expanding the raw material base of the production process of commercial high-octane automobile gasoline of the A-92 and A-95 brands due to the involvement of secondary polymer raw materials. The types of raw materials that will make it possible to obtain basic fractions or components of commercial gasolines that will be used in the production of commercial automobile gasolines that, according to their chemical composi- tion and properties, will meet the requirements of environmental safety standards adopted in Ukraine and the countries of the European Union have been determined. It was established that the main raw material capable of replacing oil and gas condensate is secondary polyolefin raw material, represented by polyethylene (HDPE and LDPE) and polypropylene (PP), and the main process of its processing is thermal or thermocatalytic pyrolysis. Priority is given to raw materials that are directly generated in production in the form of waste and raw materials that come from sorting points. At the same time, secondary polymer raw materials, regardless of their source of origin, must undergo a stage of preliminary preparation, which includes sorting, crushing, washing and drying of raw materials. Practical studies have shown that this process is implemented on reactor-type installations at temperatures of 320–450 °C and pressures of 0.1–3.5 MPa and allows obtaining a significant yield (35–70 %) of the liquid product of pyrolysis – a gasoline fraction with a boiling point of 30–200 °C. Along with liquid products, more than 15 % of gases (ethylene, propylene and butylene) are formed, which should be processed into polymer gasoline (base fraction) and high-octane components – alkylates. As a result of the research, a scheme for the production of commercial high-octane automobile gasoline from secondary polymer raw materials (HDPE, LDPE and PP) is proposed, which is based on the rational use of production resources and production by-products.

Improvement of technologies for recycling waste petroleum

Relevance. Currently, the rational and economical use of petroleum products is of particular importance. This applies, among other things, to all known types of oils. Waste oils entering the natural environment are only partially neutralized as a result of natural processes. Most of them are a source of pollution of soils, water bodies and atmospheric air, leading to disruption of the reproduction of birds, fish, mammals, and having a harmful effect on humans. Thus, the widespread problem of collecting and recycling waste petroleum products is a relevant, cost-effective and knowledge-intensive area; since with the correct organization of regeneration, the cost of recovered oils is 40–70% lower than the cost of fresh oils with almost the same quality. Aim. To improve the technology of recycling spent petroleum products in the conditions of the northern territories in order to achieve eco- and energy efficiency. After the regeneration stage, used oils can be used for their intended purpose – returned to equipment lubrication systems, this is up to 75–80% of the original amount of waste oil generated. The remaining, “unrecovered” amount of 20–25% is burned in the form of a water-fuel mixture at enterprises equipped with liquid fuel boilers. The information available in the literature is insufficient to create an effective system for the disposal of used oils and other petroleum products, especially in the circumpolar territories. A differentiated approach to the problem is required, taking into account the peculiarities of the climate, the remoteness of the Arctic territories from the transport infrastructure, with mandatory compliance with environmental standards. Methods. cavitation technology (i. e. cavitation effects) and the LSTM (Long Short-Term Memory) deep learning method for processing hydrocarbon waste using the example of industrial oil W30 and, accordingly, modeling the migration of pollutants from industrial objects in open natural water sources. Results and conclusions. The results obtained indicate that the integrated use of raw materials is the result of the most complete, economically and environmentally justified application of all advantageous components contained in raw materials, as well as in production waste. Any hydrocarbon waste can be considered as secondary material resources that can be used for economic purposes, partially or completely replacing traditional types of material, raw materials and fuel and energy resources, the main value of which is their constant reproducibility in the production sector.

Design and Evaluation of Solar Photocatalytic Reclamation for Purification of Agricultural Wastewater

The study designed and assessed a solar-powered wastewater treatment system tailored for purifying agricultural wastewater in urban residential areas. Integrating advanced technologies, primarily solar energy-driven, the system aims to effectively remove pollutants to meet discharge standards. The detailed analysis included wastewater composition, sources and suitable treatment processes, with emphasis on comparative feasibility analysis and recommended quality assurance measures. The results of the study indicate that solar photocatalytic technology has great potential for degrading pollutants and reducing operating costs. The economic analysis showed that the technology is financially viable with a payback period of about 4.64 years. The photocatalytic system offers a higher level of efficiency and flexibility compared to existing methods. Emphasis is placed on implementing quality assurance to meet safety and environmental standards.

Explaining regulatory change in the European Union: The role of the financial crisis in ratcheting up of risk regulation

AbstractThe European Union was hit by the financial crisis of 2008. The impact of this crisis, however, and the extent to which this has led to strengthening environmental, health and safety risk regulation in the EU remain open to debate. This article advances the discussion of the “ratcheting‐up” hypothesis by adding a new explanatory factor, namely the financial crisis, and shows what role it played in two cases of risk regulation: Nanotechnology and Alien Invasive Species. It is argued that the crisis, acting as an external economic pressure for the competitiveness and growth of the single market, advanced the economic rationale for strengthening environmental, health and safety standards with implications for effective risk governance, namely regulatory convergence across its (then) 28 member states.

Biopolymers in geotechnical engineering for soil improvement

AbstractSeveral biopolymer applications in geotechnical engineering have been adopted in recent years, notably dust control, soil strengthening, and erosion control. Although biopolymer soil treatment approaches can assure engineering efficiency while satisfying environmental protection standards, this technology requires more validation regarding site adaptability, durability, and economic feasibility. The influence of biopolymers on soil behavior is discussed within geotechnical engineering applications and practices, including soil consistency limits, strength and deformation parameters, hydraulic conductivity, soil-water properties, and erosion prevention.Laboratory studies were performed to confirm the behavior of the treated soil, including Atterberg limits, proctor, and direct shear tests utilizing two types of biopolymers: guar gum and xanthan gum.

Environmental effects of waste electrical and electronic equipment valorization in burkina faso

The valorization of waste electrical and electronic equipment (WEEE) has become a challenge for countries around the world, especially for developing countries like Burkina Faso. The main objective of this article is to analyze the environmental effects of WEEE valorization in Burkina Faso. To do this, the regime-switching model, developed by Lee (1978), based on the Heckman correction model, was used. The data used was collected from 414 actors in the WEEE sector in the three major cities of Burkina Faso, Ouagadougou, Koudougou, and Bobo Dioulasso. The analysis of the results shows that the methods of WEEE valorization in Burkina Faso pollute the air, soil and water. This pollution results in damages amounting to 242,752,192.6 CFA francs per year, which the sector's actors should include in their investment costs in the form of internalization costs. These costs amount to an average of 560,628.62 CFA francs per year and per actor. The WEEE sector could be improved with the implementation of certain economic policies. These policies include raising awareness among the population on WEEE management, training of stakeholders in the sector on the effective valorization of WEEE and the implementation of strict environmental standards to reduce environmental pollution due to poor WEEE valorization in Burkina Faso.

Efficient Recycling and Utilization Strategy for Steel Spent Pickling Solution

Before steel can be utilized, pickling is necessary to remove surface oxidation products. However, as the ferrous ion concentration in the pickling solution increases, the pickling rate significantly diminishes, necessitating the treatment of spent pickling solution (SPS) to mitigate its hazardous effects prior to disposal. Current industrial methods predominantly rely on neutralization and precipitation techniques, which are cost-prohibitive and generate substantial by-products, thus failing to meet environmental protection standards. In this study, a new method, which is based on the formation of FeC2O4·2H2O precipitate in a strong acid solution, is proposed to treat the SPS. Initially, the SPS undergoes a two-step impurity removal process, followed by the controlled addition of oxalic acid dihydrate (H2C2O4·2H2O) to precipitate iron. The resulting precipitate is filtered, washed, and vacuum-dried, and the regenerated acid is recycled back into the pickling tank. When 1 g/10 mL of H2C2O4·2H2O is used, the iron removal rate achieves 60%, and the acidity of the regenerated acid increases by 11.3%. X-ray diffraction pattern (XRD) and thermogravimetric–differential scanning calorimetry (TG-DSC) characterization showed that the precipitate was α-FeC2O4·2H2O, with an average particle size of about 3.19 μm and a purity of 95.24%. This process innovatively achieves efficient recycling of acid and iron resources, offering a potential solution to the industrial challenge of difficult SPS treatment in the steel industry and meeting the urgent need for sustainable development.

Community-level risk assessments on organophosphate esters in the sediments from the Bohai Sea of China based on multimodal species sensitivity distributions coupled with the equilibrium partitioning method

Organophosphate esters (OPEs), increasingly used as alternatives to brominated flame retardants, are ubiquitous in the global aquatic environment. Despite their potential toxicological impact on ecosystems, community-level risk assessments for OPEs in sediments remain scarce. This study investigated OPE occurrences and composition characteristics in the Bohai Sea's sediments and appraised both individual and joint ecological risks posed by characteristic OPE homologs using ten commonly used species sensitivity distribution (SSD) models, integrating acute-to-chronic conversion and phase equilibrium partitioning. OPEs were detected across all sediment samples, with total concentrations ranging from 0.213 ng/g dry weight (dw) to 91.1 ng/g dw. The predominant congeners included tri-n-butyl phosphate (TnBP), triisobutyl phosphate (TiBP), tri(2-ethylhexyl) phosphate, tris(2-chloroethyl) phosphate (TCEP), tris(1-chloro-2-propyl) phosphate (TCPP), tris(1, 3-dichloro-2-propyl) phosphate (TDCIPP), and triphenylphosphine oxide. Best-fit SSD models varied among TnBP, TiBP, TCEP, TCPP, and TDCIPP, demonstrating Sigmoid, Burr III, Sigmoid, Burr III, and Burr III, respectively. The same parametric model demonstrated variability in the fitting process for different OPE congeners, which also happened to the fitting results of ten parametric models for the same specific characteristic congener, underscoring the necessity of employing multiple models for precise community-level risk assessments. Hazard concentrations for a 5% cumulative probability were 0.116 mg/L, 2.88 mg/L, 1.30 mg/L, 1.44 mg/L, and 1.85 mg/L for each respective congener. The resulting risk quotients (RQ) and overall hazard index (HI) were selected as criteria to assess the individual and joint ecological risks of OPEs in sediments from the Bohai Sea, respectively. RQ and HI were both below 0.1, indicating a low risk to the local ecosystems. Multi-model SSD analysis could provide refined data for community-level risk evaluation, offering valuable insights for the development of evidence-based environmental standards and pollution control strategies.

Enhancement of the market attractiveness and success of startups on the circular economy and sustainability principles

Purpose. The purpose of this study is to develop the methodology and the framework for assessing the level of environmental friendliness of startups in the agricultural sector and their compliance with the circular economy and sustainable development principles using T. L. Saaty’s analytic hierarchy process (AHP) to enhance their market attractiveness and success. Methodology / approach. The author’s methodology was created based on the AHP approach which is a comprehensive decision-making framework used to divide complex problems into a clear hierarchical structure. This approach enables the evaluation and comparison of multiple criteria facilitating informed decision-making. Calculations have been made in the RStudio. Results. The authors’ methodology and the framework for assessing the startups’ environmental friendliness and compliance with the circular economy and sustainability principles were created. The unique program was developed and executed in the RStudio using R programming language. The created methodology is based on the hierarchical criteria system consisting of three main criteria – “Compliance with the EU environmental standards and sustainability principles promotion”, “Compliance of the startups’ business model to the circular economy and sustainability principles”, and “Resource usage rationality” with the corresponding sub-criteria. It was determined that the first criterion has the highest impact on the startup eco-friendliness with a weight of 49.2 %, the second one has a weight of 28.7 %, and the third one – 22.1 %. The system of requirements for the AHP experts was also developed. Originality / scientific novelty. It was substantiated that the application of the original authors’ methodology and program enhance the startups’ market attractiveness and success by strengthening their brand image. The proposed solution facilitates the implementation of the circular economy and sustainability principles for innovative businesses, leading to improvements in environmental protection and waste management. Practical value / implications. The methodology has been tested on the example of the authors’ bioenergy startup for producing eco-friendly biofuels using agricultural and food industry wastes and minimising the usage of toxic substances. Based on the experts’ opinion and using the authors’ unique program it was calculated that the startup complies with the circular economy and sustainability principles and has an eco-friendly brand image with a 78.6 % probability.

The elephant in the mine: Why voluntary sustainability standards are insufficient to ensure responsible mining

Environmental, social, and governance standards, along with mining sustainability and transparency initiatives, have taken centre stage in mainstream discussions about how society can source energy transition minerals responsibly. While we acknowledge the importance of private voluntary sustainability standards for improving mining performance and accountability, these must support and complement the crucial regulatory role played by the state and its enforcing agencies in resource-rich countries. From this perspective, we argue that the quality of public institutions remains ‘the elephant’ often overlooked in the room of global mining standards, and we call for re-centring the responsible mining debate around it.Tailings dam failures and uncertainties on the water impacts of brine-based lithium mining provide examples of why institutional strengthening in mineral-rich countries is crucial. The responsible mining agenda and its implementing instruments should shift from a focus on companies’ performances to one that is embedded in society with the aim of building trust in the sector and its governing authorities. For countries rich in transition minerals, this entails, among other things, reviewing organisational structures, strengthening authorities’ enforcement capacities, and allocating sufficient budget for regulators to deliver their oversight duties and avoid over-reliance on private standards.

Environmentally sustainable inventory control for perishable products: A bi-objective reorder-level policy

In order to improve sustainability and transparency in the decision making for inventory control, this paper presents a reorder-level model that considers product perishability. Conversely to most inventory control policies, the classical economic perspective is paired with an environmental one for a stochastic bi-objective optimization approach to reduce inventory logistics emissions and costs. In order to contrast stockouts, lost-sale costing and a service level constraint are integrated for a more comprehensive approach. Results show how the two objectives may be in contrast, and how Pareto-efficient solutions can help to analyze and select the proper trade-offs during decision making. Experiments indicate, for a case-study application, how the most relevant aspects affecting system performance are product shelf life and the possible need of temperature control during storage. Moreover, considering multiple sustainability perspectives in inventory management can help businesses consolidate and future-proof their operations, as well as meet environmental standards and customer demand for greener products and processes.

Policy design for biodiversity: How problem conception drift undermines “fit-for-purpose” Peatland conservation

Abstract For over two decades, scientists have documented the alarming decline of global Peatland ecosystems, regarded as the planet’s most crucial carbon sinks. The deterioration of these unique wetlands alongside their policy attention presents a puzzle for policy scientists and for students of anticipatory policy design. Two contrasting explanations have emerged. Some argue that pressures from economic globalization compel governments to relax environmental standards, while others point to deficiencies in policy design and implementation. Our paper applies Cashore’s Four Problem Types framework to assess a more nuanced explanation: that failure of global and local policies to curb ecosystem degradation is owing to a misalignment between how the problem is currently conceived of, and what conception is required for, effective environmental management. We find overwhelming evidence that reversing Peatland degradation necessitates a fundamental shift in applied policy analysis—from treating the crisis as a Type 3 (Compromise), Type 2 (Optimization), or even Type 1 (Commons) problem, to conceiving it as a Type 4 (Prioritization) challenge. Achieving this requires undertaking four essential policy design tasks: engaging sequentialist/lexical ordering processes; identifying key features of the problem that any solution would need to incorporate to effectively overcome; applying path dependency analysis to uncover policy mix innovations capable of “locking-in” sustainability trajectories that can fend off pressures for policy conception drift; and organizing multistakeholder “policy design learning” exercises that integrate complex sources of knowledge produced within, and across, the ecological and policy sciences.

Navigating stormy waters: a middle power perspective

Abstract Structural shifts in patterns of international production, trade, and investment have been spurred by the globalization of supply chains. Today, however, a range of factors, including wars and sanctions, the increasing divide between Western and Chinese approaches to the economy, the increasing links between economic security and national security, and between trade and environmental regulation, are contributing to the fragmentation of international economic frameworks and growing populist and protectionist sentiment. Competition for advantage through industrial subsidies and the setting of digital and environmental standards risks enshrining a less-than-global economic order. In many fields, however, multilateral cooperation, rulemaking, and enforcement in serving shared objectives, in various international organizations, multi-stakeholder forums, and by the private sector, continues to function well. In this ever-more complex international context, where clubs, coalitions, and informal networks among nations are increasingly prevalent, middle powers are wise to remain both agile and resolute in ensuring that national interests are advanced through smart diplomacy, encompassing working with like-minded in caucuses and informal settings that serve to build broader consensus, engaging business and other stakeholders at home and abroad in support. Canada’s experience and current efforts provide a constructive example for middle powers.

RISK ASSESSMENT IN FINANCIAL DECISION MAKING ANALYSIS ON FISHERMAN PERSPECTIVE IN COASTAL REGION: A CASE STUDY

Assessing financial decision-making from a fisherman's perspective in coastal regions involves considering a range of risks. Market volatility, driven by fluctuations in fish prices and changing consumer demands, poses immediate challenges. Environmental factors, such as climate change and natural disasters, can disrupt fishing conditions, impacting yields. Regulatory uncertainties, including shifts in fishing quotas and environmental compliance standards, add complexities. Technological advancements may necessitate investments, while limited access to credit and interest rate fluctuations present financial risks. Study is done with secondary data such as case studies, literature reviews, books, blogs and internet sources. Findings show that it is reasonable to expect that conflicts in fisheries management will increase with time as human population grows and seafood demand increases. KEYWORDS: Risk Assessment, Financial Decision Making, Fisherman, Population, Coastal Region.

Applicability assessment of a plasma melting technology for a fly ash recycling system in the Republic of Korea

ABSTRACT The Ministry of Environment of Korea has proposed a ban on landfill disposal of municipal solid waste (MSW) from 2026. Thus, it is inferred that the amount of incineration ash will increase drastically. Against this backdrop, this study assessed the applicability of a plasma melting process to fly ash. Fly ash was collected from 14 incineration facilities to analyze its basic properties and perform melting experiments. Furthermore, scanning electron microscope (SEM) analysis and economic feasibility assessment were conducted. The molten fly ash slag exhibited a pH value of 9.9, and the ignition loss of fly ash was found to range from 14.5 to 25.7 wt.%. None of seven toxic elements (arsenic (As), cadmium (Cd), cyanide (CN), mercury (Hg), hexavalent chromium (Cr(VI)), copper, and lead (Pb)) was detected from the molten slag. In addition, 99.3 wt.% of chloride ion (Cl−), 97.9 wt.% of fluoride ion (F−), and 98.1 wt.% of sulphate ion (SO4 2−) were removed. The contents in the molten slag were found to be 0.19, 7.8, 27.8, 33.1, and 38 mg/kg for Cd, Pb, zinc, nickel, and F, respectively, and none of CN, Hg, and As was detected, thereby meeting the criteria for soil pollution. All of the environmental standards were met, and SEM analysis confirmed stable quality with high density and no surface pore. In the economic feasibility assessment, a profit of approximately 152.4 $/ton was also estimated compared to landfill disposal.

Productivity of TIMBERJACK 240A and LKT 81T Skidders at Selective Cutting and Longer Distances

The extraction of wood from forests is a difficult, risky, expensive, and time-consuming operation, especially in mountainous areas and selective forests. In the forestry of Bosnia and Herzegovina (BIH), winching and skidding of wood assortments is most often done with cable skidders. They are the most applicable because they can handle hilly, mountainous and inaccessible terrain in the compartments that are most common in local forestry. In addition, selective and group-selective forest management systems are dominant, where the manoeuvring of any type of machinery is strictly limited to the skid trails and skid roads. It is a matter of legal and sub-legal regulations and environmental standards. Striving for higher productivity and economy of skidding is ultimately one of the objectives of forest management. Different Timberjack and LKT models of skidders are widely used in BIH. The study was conducted in the area of two public forest enterprises, in compartments 32 (Forest management unit "Vrbanja") and 99 (Forest management unit ““Lješljanica-Maglajska”) with similar stand and relief conditions. The research objects were two skidders, which are used very often in the forestry of BIH, LKT 81T and Timberjack 240A. Skidder LKT 81T was used in compartment 32, where 29 cycles were recorded, during which 212 logs were skidded. Total volume of skidded wood was 159.98 m3 with average volume of 5.52 m3·load-1. Timberjack 240A was used in compartment 99, where 84 cycles were recorded, with 398 logs. Total skidded wood with Timberjack 240A was 657.34 m3, with average volume of 7.83 m3·load-1. Relative share of work operations showed that loaded and unloaded drive had the largest share, onsie In case of LKT 81T loaded drive was 31% and unloaded drive 25%, while for Timberjack 240A skidder loaded drive accounted for 44% and unloaded drive for 37% of productive work time. Average skidding distance for loaded drive was 1080.34 m for LKT 81T and 727.98 for Timberjack 240A. Unloaded drive, manoeuvring drive and loaded drive showed dependence on corresponding distances. With the increase of the distance and volume of the load, the time required for skidding per unit of product increases. In comparable range (up to 900 m), for the same load size, Timberjack 240A achieved lower standard time, i.e., higher productivity than LKT 81T. Using a skidder at longer distances significantly reduces productivity and increases costs. However, planners often decide in such cases to use a cable skidder for wood skidding, knowing that the costs will be higher, which is again a better option than not harvesting parts of the compartment.

VERIFIKASI KUALITAS ANALISIS MANGAN MENGGUNAKAN TEKNIK ICP-OES DALAM SAMPEL AIR MINUM

Drinking water quality, including the levels of dissolved metals, is an important public health consideration. Manganese (Mn) is a naturally occurring metal that can be present in drinking water sources, and excessive intake of Mn can have adverse health effects. The objective of this study was to verify the performance of the analytical method for the determination of manganese (Mn) concentration in drinking water samples using Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) techniques at the PT XYZ Laboratory. The method verification included tests for analyte identity confirmation, linearity, precision, accuracy, as well as the determination of the Method Detection Limit (MDL) and Limit of Quantification (LOQ). The verification results showed that the ICP-OES method met the established performance requirements. The linearity test yielded a correlation coefficient (r) of 0.9998, fulfilling the criteria of r ≥ 0.995. The percent relative standard deviation (% RSD) value in the precision test was 1.41%, meeting the requirement of % RSD ≤ 2/3 % CV Horwitz. The accuracy test provided an average percent recovery of 98.66%, which is within the acceptable range of 85-120%. The determined MDL was 0.0006 mg/L, while the LOQ was 0.002 mg/L, both meeting the criteria of MDL < spiked concentration < 10 MDL and LOQ < environmental quality standard. In conclusion, the method for the determination of Mn concentration in drinking water using ICP-OES has been verified and can be used for routine analysis at the PT. XYZ Laboratory, supporting the monitoring and control of Mn levels in drinking water to ensure public health protection.