Metal Smelting Industry Research Articles

Literature study: Comparative analysis of lead content in blood between spot workers, Caroseries industry workers, and metal smelting industry workers

Introduction: This study aims to analyze the comparison of lead content in blood between gas station attendants, bodywork industry workers, and metal smelting industry workers. Lead (Pb) is a heavy metal that can have dangerous effects on human health. Lead exposure can occur through various sources, including the work environment. Method: The research used is a literature study by collecting articles published between 2013-2023. After selection, there were 18 articles that were relevant to the research topic. Results and Discussion: The average lead content in the blood of gas station attendants ranges from 2.75 μg/dL to 35,317 μg/dL, bodywork industry workers range from 14.4 μg/dL to 35 μg/dL, and metal smelting industry workers range from 14.4 μg/dL. dL up to 50.83 μg/dL. Differences in levels of lead exposure between these three professions can be caused by differences in type of work, activities and work environment. Conclusion: Based on the results of this research, it can be concluded that gas station officers, bodywork industry workers, and metal smelting industry workers have different levels of exposure to lead. Therefore, appropriate health protection, such as the use of PPE and safe work practices, needs to be implemented to reduce the risk of lead exposure.

Sources apportionments of heavy metal(loid)s in the farmland soils close to industrial parks: Integrated application of positive matrix factorization (PMF) and cadmium isotopic fractionation

Understanding the source identification and distribution of heavy metal(loid)s in soil is essential for risk management. The sources of heavy metal(loid)s in farmland soil, especially in areas with rapid economic development, were complicated and need to be explored urgently. This study combined geographic information system (GIS) mapping, positive matrix factorization (PMF) model and cadmium (Cd) isotope fingerprinting methods to identify heavy metal(loid) sources in a typical town in the economically developed Yangtze River Delta region of China. Cd, As, Cu, Zn, Pb, Ni and Co in different samples were detected. The results showed that Cd was the most severely contaminated element, with an exceedance rate of 78.0 %. GIS mapping results indicated that the hotspot area was located in the northeastern area with prolonged operational histories of electroplating and non-ferrous metal smelting industries. The PMF model analysis also identified emissions from smelting and electroplating enterprises as the main sources of Cd in the soil, counted for 49.28 %, followed by traffic (25.66 %) and agricultural (25.06 %) sources. Through further isotopic analysis, it was found that in soil samples near the industrial park, the contribution of electroplating and non-ferrous metal smelting enterprises to cadmium pollution was significantly higher than other regions. The integrated use of various methodologies allows for precise analysis of sources and input pathways, offering valuable insights for future pollution control and soil remediation endeavors.

Study on carbon emission reduction countermeasures based on carbon emission influencing factors and trends.

The carbon mitigation response encompasses a variety of strategies aimed at mitigating greenhouse gas emissions resulting from human activities. These measures are crafted to address the challenges posed by climate change and facilitate the transition of businesses towards a low-carbon paradigm. Leveraging the analytical outcomes of the extended STIRPAT model and the PSO-BP prediction model, this paper suggests countermeasures for reducing carbon emissions in China's metal smelting industry. The overarching objective is to contribute to China's attainment of the "dual carbon objectives." The study identifies key factors influencing carbon emissions in the metal smelting industry, ranked in descending order of sensitivity: population, coal consumption, urbanization rate, total metal production, carbon intensity, proportion of secondary industry, and GDP per capita. Results from three established scenarios-namely, low carbon, standard, and high carbon-indicate a consistent decline in carbon emissions from China's metal smelting industry over the next 15 years. This research not only enhances the findings of existing studies on carbon emissions in the metal smelting sector but also introduces an innovative approach to carbon emission reduction within China's metal smelting industry.

Carbon leakage or carbon reduction? Carbon emission effect of the production relocation of metal smelting industry in China

AbstractThe metal smelting industry (MSI) is one of the major carbon emission sectors in China, and it is of great significance to clarify the mechanism and truth of the carbon effect of production relocation (PR) of MSI for reducing national carbon emissions. Based on this thinking and previous studies, we proposed two concepts of relative carbon emission effect (RCE) and absolute carbon emission effect (ACE) of PR, then developed models to explore the impact of PR of MSI (PRM) on national carbon emission between 30 provincial administrative units in China from 2007 to 2017. The study demonstrates that the PRM and its ACE and RCE is divergent across provinces and regions. Overall, the PRM is beneficial to national carbon reduction under both relative and absolute scenarios. Specifically, the transfer‐in PRM of most provinces in central regions is beneficial to national carbon reduction, while the transfer‐out PRM of many provinces in coastal areas has worst carbon leakage effect.

Green and efficient coordination of Ti(IV) with bisamide solvent

Titanium(Ti) is known as a strategic metal due to its excellent physical and chemical properties. Ti based materials are widely used in many fields, such as aerospace, biomedical, and photovoltaic materials. Since the metal smelting industry is often accompanied by high pollution, deep eutectic solvent, as a new type of environmentally friendly solvent, is gradually being widely used in the field of metal separation and purification. Through the transformation from non-ionic organic deep eutectic solvents (DESs-5) to inorganic deep eutectic solvents (DESs-M), the efficient coordination of Ti(IV) in acidic chloride medium was achieved. Under the optimal condition, over 95% of Ti(IV) in aqueous solution can be coordinated into DESs in a single stage, which can be used for the separation and purification of Ti(IV). The formation mechanism of DESs-5 was revealed by the quantum chemistry method and the lowest energy mechanism in the conversion reaction process was revealed by frontier molecular orbital (FMO) theory. The thermodynamic and kinetic processes of the conversion reaction were analyzed, which provided important research data for the construction of DESs-based Ti(IV) separation and purification system.

Leaching behavior of copper tailings solidified/stabilized using hydantoin epoxy resin and red clay

Tailings produced by mining engineering and metal smelting industries have become a major challenge to the ecological environment and human health. Environmental compatibility, mechanical stability, and economic feasibility have restricted the treatment and reuse of tailings. A novel solidification/stabilization technology using hydantoin epoxy resin (HER) and red clay for copper tailing treatment was developed, and the leaching behaviors of solidified/stabilized copper tailings were investigated in this paper. The leaching characteristics were analyzed by toxicity characteristic leaching procedure (TCLP) leaching tests. Besides, the influence of red clay content and acid rain on the permeability characteristics and leaching characteristics were investigated based on flexible-wall column tests and microstructure tests. The results showed that the copper tailings solidification/stabilization technology with HER and red clay had excellent performances in toxicity stabilization. The leaching concentration of Cu in TCLP tests and flexible wall column tests remained within the limit specified by the Chinese national standard, and the concentration of Cu decreased significantly with the increase of the red clay content. Moreover, acid rain leaching changed the mineral composition and microstructure of solidified tailings, and the porosity of the samples increased with the dissolution of soluble minerals. Additionally, the hydraulic conductivities decreased slightly with the increase in the pH value of acid rain, and the solidified sample with 5% red clay had the lowest hydraulic conductivity.

Research on the Spatial-Temporal Distribution Characteristics and Influencing Factors of Carbon Emission Efficiency in China’s Metal Smelting Industry—Based on the Three-Stage DEA Method

The threat of global climate change has encouraged the international community to pay close attention to the levels of greenhouse gases, such as carbon dioxide, in the atmosphere. China has the world’s largest metal smelting industry, which is a major energy-consuming and carbon-emitting industry. Thus, this industry’s low-carbon transition is of great significance. Carbon emission efficiency (CEE) is a key indicator for the metal smelting industry to prioritize sustainable development. This paper applies a three-stage data envelopment analysis model with undesirable outputs to estimate CEE for 30 provinces from 2005 to 2020 in China, and analyzes the influencing factors using a spatial Durbin model. The results show that the CEE level generally improved in all Chinese provinces during the sample period, but the average CEE in the eastern region was 1.05 compared to 1.07 in the western and central regions, with the latter two regions progressing faster in terms of low carbon production capacity. The national average Malmquist–Luenberger (ML) index demonstrates a significant increase in technical efficiency across regions in 2010 and 2017, peaking in 2017. The study also suggests that current green credit and environmental regulations are not effective in promoting CEE improvements in the metal smelting industry, and that existing policies should be modified. Moreover, the spatial regression results indicate that the cross-regional transfer of low-carbon production technologies in China is largely complete. This study provides a more objective evaluation of the CEE levels of metal smelting across China, providing the government with a new perspective to guide the green transformation of energy-intensive industries.

One-year spatiotemporal variations of air pollutants in a major chemical-industry park in the Yangtze River Delta, China by 30 miniature air quality monitoring stations

Fine chemical industrial park (FCIP) is a major source of atmospheric pollutants in China. A long-term high spatial resolution monitoring campaign on air pollutants had been firstly conducted in a major FCIP in Yangtze River Delta (YRD) from December 2019 to November 2020. The grid-based monitoring platform consisting of 30 miniature air quality monitoring stations (AQMSs) provided comprehensive coverage of a FCIP, and long-term monitoring studies solved the problem of lack of clarity about pollution sources in industrial parks. Overall, NO2 pollution was particularly high in the pharmaceutical industry, while TVOCs and O3 pollution were most serious in the textile dyeing industry, with PM pollution much higher in the metal smelting industry than in other industries, and in the leather industry, O3 pollution was relatively severe. The spatial and temporal variations of air pollutants showed that higher PM, CO and NO2 concentrations were revealed in winter while lower in summer due to better meteorological diffusion conditions. TVOCs concentrations were higher with an average of 1954 ppb in summer possibly due to their increased volatilization from their sources at higher ambient temperatures. O3 concentrations were at their peaks in spring (88.8 μg m−3) and early fall (78.5 μg m−3). The daily trends of O3 precursors (TVOCs and NO2) were clearly negatively correlated with O3, and they showed bimodal peaks due to anthropogenic activities, plant emissions, lowering of the mixed boundary layer, etc. The O3 formed in FCIP was judged to be NO2-limited during the monitoring period based on the ratios of NO2 to TVOCs. Therefore, the effective strategy to reduce O3 formation in FCIP is to decrease the ambient NO2 concentration. Based on Pearson correlation coefficients, it appeared that WS promoted O3 formation through long-term transport and that high air temperatures also contributed to O3 formation in the environment. It was also stated in the study that the closer the residential area is to the industrial sources, the more significant the correlation. Thus, the results of this study will also be helpful for policymakers to design pollutant control strategies for different industries to mitigate the impact of pollutants on human health.

A Critical Review on the Removal and Recovery of Hazardous Cd from Cd-Containing Secondary Resources in Cu-Pb-Zn Smelting Processes

Due to the advancement of industrialization and the development of the metal smelting industry, cadmium (Cd), as a highly toxic heavy metal element, is discharged into the natural environment in the form of dust, slag, and waste solutions during the Cu-Pb-Zn smelting process, causing great harm to the soil, water environment, and human health. Meanwhile, Cd is a key component of Ni-Cd batteries and CdTe semiconductor materials. The removal and recovery of Cd from the Cu-Pb-Zn smelting process faces a dual concern with respect to resource recycling and environmental protection. This paper briefly introduces the Cd-containing secondary resources produced in the Cu-Pb-Zn smelting process, systematically reviews the recovery methods of Cd from dust, slag and waste solutions, and compares the technical principles, process parameters, separation efficiency, advantages and disadvantages, and application requirements. In addition, a new route to treat Cd-containing solutions via the foam extraction method was proposed, which has the advantages of a short reaction time, large handling capacity, high removal efficiency, and simple operation equipment, showing superior application prospects, especially for industrial bulk waste solutions with ultralow concentrations.

Performance and mechanism study on surfactant-stabilized oil microdroplets extraction from oily wastewater

Petrochemical, coal chemical, and metal smelting industries generate substantial amounts of oily wastewater. The major obstacle in treating these wastewaters is surfactant-stabilized oil microdroplets. Solvent extraction has shown significant application potential in this kind of oil microdroplet removal due to its high-efficiency, economy, and environmental friendliness. However, mechanistic study and other in-depth investigation are still needed to support the more high-performance extractant screening and process design. In this study, in terms of the surfactant-stabilized oil microdroplet extraction from oily wastewater, the mechanism was analyzed by characterizing the compositions and properties of the intermediate layer and extractant phase. It was demonstrated that, unlike conventional liquid–liquid extraction system containing molecular solutes, the extraction of surfactant-stabilized oil microdroplets is accomplished by the mass transfer of extractant from the exterior to the interior of the oil microdroplets and the rise of extractant-containing oil droplets in the aqueous phase with critical influences. This behavior of mass transfer and droplet rise is supported by the mechanism of the emulsion liquid membrane extraction technique and the Stokes’ law. In addition, we illustrated the positive or negative effects of several factors (e.g. molecular extractant type, extractant dosage, stirring time, stirring speed and so on) on extraction efficiency. This confirmed the mechanism proposed above. And multistage extraction experiments showed that this solvent extraction technology was able to treat oily wastewater to discharge standards. Finally, by combining with the feasibility analysis of extractant regeneration, non-polar extractants were considered as the more suitable extractant than polar extractant because of the realizability of regeneration, lower costs for regeneration and better extraction performance.

PENGARUH WAKTU EKSTRUKSI BAHAN EVAPORATION BOATS, GRAFIT DAN SEMEN CASTABLE PADA MESIN EKSTRUDER TERHADAP DENSITAS, POROSITAS DAN KEKUATAN IMPAK

Waste is one of the main problems in Indonesian industry. The utilization of metal waste isvery much needed by the metal smelting industry to melt and reshape to become goods thathave more selling value. There are many kinds of waste obtained from the metallurgicalmanufacturing industry, one of which is material evaporation boats. Refractory materialscommonly used for crucibles have not yet produced good refractories and the price is stillexpensive, so research on Evaporation Boats is needed for more utilization and advantages.This study aims to determine the effect of the extrusion time of evaporation boats, graphiteand castable cement on the density, porosity, and impact strength of crucible materials.Variations in extrusion time used in this study were 45 minutes, 90 minutes and 135minutes. The materials used are 70% evaporation boats by weight, 15% graphite, 15%castable cement, and mixed with 15% water of the total weight. The test results showedthe highest density value was 2.05 g/cm3 at an extrusion time of 135 minutes, and thelowest was 2.03 g/cm3 at an extrusion time of 45 minutes. The highest porosity value was5.5% at an extrusion time of 45 minutes, and the lowest was 2.4% at an extrusion time of135 minutes. The highest impact strength value was 0.005611579 J at an extrusion time of135 minutes, and the lowest was 0.005117523 J at an extrusion time of 45 minutes. Fromthe resulting data, it is known that 1.) there is an effect of extrusion time on the densityvalue. The longer the extrusion time, the higher the density value. 2.) There is an effect ofextrusion time on the porosity value. The faster the extrusion time, the higher the porosityvalue. 3.) There is an effect of extrusion time on the impact strength. The longer theextrusion time, the higher the impact.

Selective removal of Hg2+ from acidic wastewaters using sulfureted Fe2TiO5: Underlying mechanism and its application as a regenerable sorbent for recovering Hg from waste acids of smelters

The selective removal of Hg2+ from waste acids containing high concentrations of other metal cations, such as Cu2+, Zn2+, and Cd2+, which are discharged from nonferrous metal smelting industries, is in great demand. Herein, sulfureted Fe2TiO5 was developed as a regenerable magnetic sorbent to recover Hg2+ from waste acids for centralized control. Sulfureted Fe2TiO5 exhibited an excellent ability for Hg2+ removal with the capacity of 292–317 mg g−1 and the rate of 49.5–57.6 mg g−1 h−1 at pH=2–4. Meanwhile, it exhibited an excellent selectivity for Hg2+ removal that not only the coexisting Cu2+, Zn2+, and Cd2+ can scarcely be adsorbed but also Hg2+ adsorption was hardly inhibited. The mechanism and kinetic studies indicated that the Fe2+ in the FeS2 coated on sulfureted Fe2TiO5 was exchanged with Hg2+ adsorbed at a Fe2+ to Hg2+ mole ratio of 1:2. Meanwhile, most of the Hg2+ removed by sulfureted Fe2TiO5 can be thermally desorbed primarily as ultra-high concentrations of gaseous Hg0, which can finally be recovered as liquid Hg0 for centralized control in combination with existing Hg0-recovery devices in smelters. Moreover, the spent sulfureted Fe2TiO5 could be regenerated for duty-cycle operations with re-sulfuration without a remarkable degradation of the Hg2+-removal performance. Therefore, Hg2+ recovery using sulfureted Fe2TiO5 may be a promising, low-cost, and environmentally friendly technology for the centralized control of Hg2+ in waste acids discharged from smelters.

Discovery of significant atmospheric emission of halogenated polycyclic aromatic hydrocarbons from secondary zinc smelting

Chlorinated and brominated polycyclic aromatic hydrocarbons (Cl/Br-PAHs) are emerging persistent organic pollutants. Current knowledge on the emissions of Cl/Br- PAHs is far insufficient for source control, much less on their formation mechanisms. In this field study, Cl/Br-PAHs formation mechanisms were proposed from the macro perspective of practical secondary metal smelting industries. We found secondary zinc smelting as a significant source of Cl/Br-PAHs (9553 ng/m3 in stack gas), exceeding concentrations from other metal smelting sources by 1–2 orders of magnitude. Cl/Br-PAH emission characteristics differed between various secondary metal smelting processes, indicating dominance of different formation mechanisms. Cl/Br-PAHs with fewer rings were dominant from secondary zinc smelting and secondary copper smelting. Differently, emissions from secondary aluminum smelting were dominated by congeners with more rings. The differences in congener profiles were attributable to the catalytic effects of metal compounds during smelting activities. Zinc oxide and copper oxide dominantly catalyzed dehydrogenation reactions, contributing to the formation of intermediate radicals and subsequent dimerization to Cl/Br-PAHs with fewer rings. Differently, aluminum oxide induced alkylation reactions and accelerated ring growth, resulting in the formation of Cl-PAHs with more rings. The newly proposed mechanisms can successfully explain the emission characteristics of Cl/Br-PAHs during smelting activities, which should be important implication for Cl/Br-PAHs targeted source control.

Numerical and Experimental Study of Hydraulic Performance and Wear Characteristics of a Slurry Pump

The slurry pump is widely used in ore mining, metal smelting, petrochemical, and other industries, mainly to transport fluid media containing large solid particles. Importantly, it is easy to damage the impeller of a slurry pump in the operation process, which greatly affects the performance of the pump. In this paper, a 25 MZ slurry pump was selected as the research object, and the Euler–Euler multiphase flow model was employed to analyze the internal flow characteristics of the slurry pump under the conditions of clear water and solid–liquid two-phase flow. Additionally, the flow characteristics of each part under different flow conditions were studied, and the effects of different particle volume concentrations, particle sizes, and pump speeds on the impeller’s wear characteristics and hydraulic performance were analyzed. In order to verify the reliability and accuracy of the numerical simulation results, clean water and solid–liquid two-phase flow wear tests of the slurry pump were carried out, and the results showed that a high solid volume fraction and solid–phase slip velocity were generated at the junction of the blade leading edge and the rear cover plate, thus leading to easier wear of the blade. Therefore, enhancing the strength of the junction between the blade leading edge and the rear cover plate is beneficial for improving service life and should be considered in the design of slurry pumps.

Performance Prediction of the Ferrous Metal Smelting and Rolling Processing Industry in Supply-Side Structural Reform in China

Supply-side structural reforms and environmental protection policies have a great impact on the ferrous metal smelting and rolling processing industry. This paper uses a grey model that introduces a fractional-order cumulative generating operator to study the development of ferrous metal smelting and rolling processing enterprises under the influence of supply-side structural reform in order to derive the future development trend of the industry. The forecast results show that from 2018 to 2022, the number of enterprises and substitute enterprises, inventory, finished products, and assets and liabilities decreases; the scale of income of metal smelting and rolling processing industry increases. The results can serve as a reference for policy makers and industry investors.

Erythrocyte Index Levels in Metal Smelters Based on Literature Studies

The metal smelting industry tends to have high air Pb levels exceeding the threshold determined by the CDC is 100 g/m3. The smelting dust particles are Pb and SO2 circulating in the air along with combustion fumes is very possible to be inhaled by metal smelters who do not wear proper personal protective equipment. High levels of Pb The air inhaled by metal smelters can affect the health level of workers, one of which is the disruption of the erythropoiesis process which can cause abnormal erythrocyte index levels. This study aims to determine the description of erythrocyte index levels in metal smelters based on literature studies. This research is an observational qualitative research through a literature review approach, with data collection methods that use secondary data from several related scientific journals. Secondary data analysis is descriptive and presented in tabular form. Based on the results of research from three related scientific journals, the average level of the erythrocyte index in metal smelting workers is normochromic normocytic with an average length of work of more than 3.89 years, workers who smoke as much as 78% and those who do not smoke as much as 22%, workers who using PPE as much as 56% and 44% who do not use PPE.

Comparison of Several Processes for Removing Fluoride from Coal Chemical Wastewater

Fluorine-containing industrial wastewater treatment is a hot topic of current concern of many enterprises. With the intensification of industrial production, the discharge of high-concentration fluorine-containing industrial wastewater is also increasing. Coal mine water, coal chemical industry, photovoltaic industry, fluorinated chemical industry, metal smelting industry, electroplating industry, electronics industry and other industries all have fluorine-containing wastewater and need to be treated in depth before they can be discharged or reused. These enterprises contain fluorine The wastewater fluorine concentration is generally above 10mg/L. Failure to meet the standards will not only pollute the environment, but also threaten human health. And because the nature of the industry is different and the location of the company is different, the implementation standards for the treatment of fluoride are also different. The most stringent at present is to achieve less than 1mg/L.

Concentrations, homolog profiles, and risk assessment of short- and medium-chain chlorinated paraffins in soil around factories in a non-ferrous metal recycling park

Chlorinated paraffins (CPs) are used as additives in metal processing in the metal smelting industry. Data on CPs in the environment near metal smelting plants are limited. The objectives of this study were to investigate the concentrations and congener profiles of CPs in soil around factories in a non-ferrous metal recycling park located in Hebei, China, and to investigate human exposure to CPs in the soil. The concentrations of short-chain CPs (SCCPs) and medium-chain CPs (MCCPs) were determined by two-dimensional gas chromatography with electron capture negative ionization mass spectrometry. The SCCP and MCCP concentrations in the soil samples were 121–5159 ng/g and 47–6079 ng/g, respectively. Generally, the CP concentrations in soils around the factories were relatively high compared with those near other contaminated sites and in rural and urban areas. There were significant correlations between the MCCP concentrations, some SCCP carbon homologs, and the total organic carbon content (p < 0.05). The major SCCP and MCCP congener groups were C10Cl6–7 and C15–16Cl5, respectively. Hierarchical cluster analysis and principal component analysis indicated that SCCPs and MCCPs in the soil might originate from extreme pressure additives containing CP-42 and CP-52 and CP-containing waste material from the factories. The concentrations in two samples collected near a metal recycling factory posed a moderate risk according to a risk assessment conducted using risk quotients. Further risk assessment showed that the CPs concentrations in soil did not pose significant health risks to either children or adults.

Fabrication of glass-based products as remediation alternative for contaminated urban soils of Barcelona

Contaminated soils from an area previously occupied by a metal smelting industry of Barcelona city were used as raw material for making glass. Vitrification was investigated as a possible remediation technique. The main pollutants in these soils are Cu, Pb and Zn. Glass was formulated using 80 wt% of soil and 20 wt% of Na2CO3. The mixture was molten at 1450 °C. Crystallisation temperatures, obtained by Differential Thermal Analysis, were 790 °C, 842 °C and 879 °C. Nepheline, diopside and rhönite crystallized from glass treated at exothermal peaks. The endothermic peak at 1259 °C corresponds to the melting temperature. Glass transition temperature, determined by dilatometry was 632 °C. Viscosity-temperature curve was used to calculate the relevant temperatures for the process. The conformation range is between 995 °C and 1298 °C, and the workability interval ranges from 1293 °C to 1302 °C. The contents of the elements leached from the glass are well below the limits established by the European legislation. Thus, the vitrification is an effective remediation technique for contaminated soils.

Emissions of Tetrafluoromethane (CF4) and Hexafluoroethane (C2F6) From East Asia: 2008 to 2019.

The perfluorocarbons (PFCs), tetrafluoromethane (CF4) and hexafluoroethane (C2F6), are potent greenhouse gases with very long atmospheric lifetimes. They are emitted almost entirely from industrial sources, including the aluminum and rare earth metal smelting industries that emit them as by‐products, and the semiconductor and flat panel display manufacturing industries that use them and vent unutilized amounts to the atmosphere. Despite extensive industrial efforts to quantify and curb these emissions, “top‐down” PFC emission estimates derived from atmospheric measurements continue to rise and are significantly greater than reported process‐ and inventory‐based “bottom‐up” emissions. In this study, we estimate emissions of CF4 and C2F6 from East Asia, where PFC emitting industries are heavily concentrated, using a top‐down approach (a Bayesian inversion) with high‐frequency atmospheric measurements at Gosan (Jeju Island, South Korea) for 2008–2019. We also compile and analyze the available bottom‐up CF4 and C2F6 emissions in East Asia from industrial and government reports. Our results suggest that the observed increases in global PFC emissions since 2015 are driven primarily by China's aluminum industry, with significant contributions from Japan's and Korea's semiconductor industry. Our analysis suggests that Chinese emissions occur predominantly from the aluminum industry, although their emissions per production ratio may be improving. Our results for Japan and Korea find significant discrepancies between top‐down and bottom‐up emissions estimates, suggesting that the effectiveness of emission reduction systems (abatement) used in their semiconductor industries may be overestimated. Overall, our top‐down results for East Asia contribute significantly to reducing the gap in the global PFC emission budgets.