{"title":"在一个高度机械化的露天煤矿中,使用低成本传感器估算HEMM操作员的实时PM暴露和相关的健康风险","authors":"Dhruti Sundar Pradhan, Aditya Kumar Patra, Abhishek Penchala, Samrat Santra","doi":"10.1007/s11869-025-01769-6","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>The working environment of the operators of heavy earth moving machineries (HEMMs) expose them to high airborne particulate matter (PM) concentration as a part of their occupation. Using a set of low-cost sensors, the present study investigated the in-cabin PM exposure of dumper, shovel and drill machine operators and compared it with the cabin outside PM concentration in a large opencast mine where a large number of HEMMs are deployed. The results revealed that the drill operators were exposed to the highest in-cabin PM concentration (PM<sub>1</sub> = 190.98 ± 30.3 µg m<sup>−3</sup>, PM<sub>2.5</sub> = 281 ± 52.85 µg m<sup>−3</sup>, PM<sub>10</sub> = 1475.23 ± 915.42 µg m<sup>−3</sup>) followed by the exposures of shovel (PM<sub>1</sub> = 45.62 ± 24.28 µg m<sup>−3</sup>, PM<sub>2.5</sub> = 97.85 ± 51.10 µg m<sup>−3</sup>, PM<sub>10</sub> = 354.38 ± 219.69 µg m<sup>−3</sup>) and dumper operators (PM<sub>1</sub> = 42.08 ± 18.25 µg m<sup>−3</sup>, PM<sub>2.5</sub> = 90.38 ± 44.55 µg m<sup>−3</sup>, PM<sub>10</sub> = 331.05 ± 225.65 µg m<sup>−3</sup>). The exposure in the evening shift was 10% higher than exposure during the morning shift. The in-cabin PM concentrations while the dumper travelled on main haul road were ~ 2 times of the corresponding values when it travelled on the internal haul road. In addition to the outside concentration, the in-cabin PM levels are influenced by cabin ventilation (AC vs. non-AC), structural leakage, and door/window operation. AC cabins could reduce the PM exposure up to 40% (10% for non-AC cabins) than ambient mine environments. GLM explained 65–89% of PM concentration variability, with HEMM type and meteorological parameters as significant predictors. The health risk assessment indicates that all operators are exposed to non-carcinogenic health risks, as the Risk Quotient (RQ) values for each exceed the threshold of 1 (RQ > 1). Notably, the drill operator is subjected to the highest non-carcinogenic risk, with an RQ value of 8. While, the Excess Lifetime Cancer Risk (ELCR) assessment for PM<sub>2.5</sub> exposure reveals potential carcinogenic risks among operators in two age groups. For the 18-year age group, the ELCR values range from 6.15 × 10⁻<sup>4</sup> to 1.92 × 10⁻<sup>3</sup>, whereas for the 21 years and above age group, the values range from 5.13 × 10⁻<sup>4</sup> to 1.60 × 10⁻<sup>3</sup>, indicating elevated cancer risk among 18 + age group of operators. This research highlights the occupational health risk of the HEMM operators working in opencast mines and important role of low-cost sensors in real-time PM exposure assessment in mining environments.</p>\n </div>","PeriodicalId":49109,"journal":{"name":"Air Quality Atmosphere and Health","volume":"18 8","pages":"2277 - 2302"},"PeriodicalIF":2.9000,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Estimation of real-time PM exposure and associated health risk of HEMM operators using low-cost sensors in a highly mechanised opencast coal mine\",\"authors\":\"Dhruti Sundar Pradhan, Aditya Kumar Patra, Abhishek Penchala, Samrat Santra\",\"doi\":\"10.1007/s11869-025-01769-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n <p>The working environment of the operators of heavy earth moving machineries (HEMMs) expose them to high airborne particulate matter (PM) concentration as a part of their occupation. Using a set of low-cost sensors, the present study investigated the in-cabin PM exposure of dumper, shovel and drill machine operators and compared it with the cabin outside PM concentration in a large opencast mine where a large number of HEMMs are deployed. The results revealed that the drill operators were exposed to the highest in-cabin PM concentration (PM<sub>1</sub> = 190.98 ± 30.3 µg m<sup>−3</sup>, PM<sub>2.5</sub> = 281 ± 52.85 µg m<sup>−3</sup>, PM<sub>10</sub> = 1475.23 ± 915.42 µg m<sup>−3</sup>) followed by the exposures of shovel (PM<sub>1</sub> = 45.62 ± 24.28 µg m<sup>−3</sup>, PM<sub>2.5</sub> = 97.85 ± 51.10 µg m<sup>−3</sup>, PM<sub>10</sub> = 354.38 ± 219.69 µg m<sup>−3</sup>) and dumper operators (PM<sub>1</sub> = 42.08 ± 18.25 µg m<sup>−3</sup>, PM<sub>2.5</sub> = 90.38 ± 44.55 µg m<sup>−3</sup>, PM<sub>10</sub> = 331.05 ± 225.65 µg m<sup>−3</sup>). The exposure in the evening shift was 10% higher than exposure during the morning shift. The in-cabin PM concentrations while the dumper travelled on main haul road were ~ 2 times of the corresponding values when it travelled on the internal haul road. In addition to the outside concentration, the in-cabin PM levels are influenced by cabin ventilation (AC vs. non-AC), structural leakage, and door/window operation. AC cabins could reduce the PM exposure up to 40% (10% for non-AC cabins) than ambient mine environments. GLM explained 65–89% of PM concentration variability, with HEMM type and meteorological parameters as significant predictors. The health risk assessment indicates that all operators are exposed to non-carcinogenic health risks, as the Risk Quotient (RQ) values for each exceed the threshold of 1 (RQ > 1). Notably, the drill operator is subjected to the highest non-carcinogenic risk, with an RQ value of 8. While, the Excess Lifetime Cancer Risk (ELCR) assessment for PM<sub>2.5</sub> exposure reveals potential carcinogenic risks among operators in two age groups. For the 18-year age group, the ELCR values range from 6.15 × 10⁻<sup>4</sup> to 1.92 × 10⁻<sup>3</sup>, whereas for the 21 years and above age group, the values range from 5.13 × 10⁻<sup>4</sup> to 1.60 × 10⁻<sup>3</sup>, indicating elevated cancer risk among 18 + age group of operators. This research highlights the occupational health risk of the HEMM operators working in opencast mines and important role of low-cost sensors in real-time PM exposure assessment in mining environments.</p>\\n </div>\",\"PeriodicalId\":49109,\"journal\":{\"name\":\"Air Quality Atmosphere and Health\",\"volume\":\"18 8\",\"pages\":\"2277 - 2302\"},\"PeriodicalIF\":2.9000,\"publicationDate\":\"2025-06-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Air Quality Atmosphere and Health\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11869-025-01769-6\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Air Quality Atmosphere and Health","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s11869-025-01769-6","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Estimation of real-time PM exposure and associated health risk of HEMM operators using low-cost sensors in a highly mechanised opencast coal mine
The working environment of the operators of heavy earth moving machineries (HEMMs) expose them to high airborne particulate matter (PM) concentration as a part of their occupation. Using a set of low-cost sensors, the present study investigated the in-cabin PM exposure of dumper, shovel and drill machine operators and compared it with the cabin outside PM concentration in a large opencast mine where a large number of HEMMs are deployed. The results revealed that the drill operators were exposed to the highest in-cabin PM concentration (PM1 = 190.98 ± 30.3 µg m−3, PM2.5 = 281 ± 52.85 µg m−3, PM10 = 1475.23 ± 915.42 µg m−3) followed by the exposures of shovel (PM1 = 45.62 ± 24.28 µg m−3, PM2.5 = 97.85 ± 51.10 µg m−3, PM10 = 354.38 ± 219.69 µg m−3) and dumper operators (PM1 = 42.08 ± 18.25 µg m−3, PM2.5 = 90.38 ± 44.55 µg m−3, PM10 = 331.05 ± 225.65 µg m−3). The exposure in the evening shift was 10% higher than exposure during the morning shift. The in-cabin PM concentrations while the dumper travelled on main haul road were ~ 2 times of the corresponding values when it travelled on the internal haul road. In addition to the outside concentration, the in-cabin PM levels are influenced by cabin ventilation (AC vs. non-AC), structural leakage, and door/window operation. AC cabins could reduce the PM exposure up to 40% (10% for non-AC cabins) than ambient mine environments. GLM explained 65–89% of PM concentration variability, with HEMM type and meteorological parameters as significant predictors. The health risk assessment indicates that all operators are exposed to non-carcinogenic health risks, as the Risk Quotient (RQ) values for each exceed the threshold of 1 (RQ > 1). Notably, the drill operator is subjected to the highest non-carcinogenic risk, with an RQ value of 8. While, the Excess Lifetime Cancer Risk (ELCR) assessment for PM2.5 exposure reveals potential carcinogenic risks among operators in two age groups. For the 18-year age group, the ELCR values range from 6.15 × 10⁻4 to 1.92 × 10⁻3, whereas for the 21 years and above age group, the values range from 5.13 × 10⁻4 to 1.60 × 10⁻3, indicating elevated cancer risk among 18 + age group of operators. This research highlights the occupational health risk of the HEMM operators working in opencast mines and important role of low-cost sensors in real-time PM exposure assessment in mining environments.
期刊介绍:
Air Quality, Atmosphere, and Health is a multidisciplinary journal which, by its very name, illustrates the broad range of work it publishes and which focuses on atmospheric consequences of human activities and their implications for human and ecological health.
It offers research papers, critical literature reviews and commentaries, as well as special issues devoted to topical subjects or themes.
International in scope, the journal presents papers that inform and stimulate a global readership, as the topic addressed are global in their import. Consequently, we do not encourage submission of papers involving local data that relate to local problems. Unless they demonstrate wide applicability, these are better submitted to national or regional journals.
Air Quality, Atmosphere & Health addresses such topics as acid precipitation; airborne particulate matter; air quality monitoring and management; exposure assessment; risk assessment; indoor air quality; atmospheric chemistry; atmospheric modeling and prediction; air pollution climatology; climate change and air quality; air pollution measurement; atmospheric impact assessment; forest-fire emissions; atmospheric science; greenhouse gases; health and ecological effects; clean air technology; regional and global change and satellite measurements.
This journal benefits a diverse audience of researchers, public health officials and policy makers addressing problems that call for solutions based in evidence from atmospheric and exposure assessment scientists, epidemiologists, and risk assessors. Publication in the journal affords the opportunity to reach beyond defined disciplinary niches to this broader readership.