Abstract
Quartz is classified as a group 1 carcinogen by the International Agency for Research on Cancer. Atmospheric emissions of respirable quartz in particulate matter released from industrial activities are important for evaluating human exposure. Here we quantified the mass concentrations of quartz as a constituent of particulate matter collected from 118 full-scale industrial plants, comprising 13 main source categories, with the aim of identifying primary industrial contributors. The sources with the highest quartz mass concentrations are waste incineration and electric-arc furnace steelmaking, with average values of 16,924 μg g−1 and 12,005 μg g−1, respectively. Total atmospheric emissions of quartz from the investigated industrial sources are 24,581.3 t. Cement kiln co-processing solid waste, coking plants, pig-iron blast furnaces, iron-ore sintering and steelmaking electric-arc furnaces were identified as the major industrial sources contributing to quartz emissions in China. Quartz emissions arising from the 13 industrial sources could generate up to 77.2% increment in cancer risk for China owing to the high density of these activities. These results provide important fundamental data to assess exposure risks in the general population and enhance sustainability of industrial development.
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Data availability
The essential dataset required for interpreting, verifying and expanding upon the research is presented in Supplementary Information. Mass concentrations of respirable quartz for Figs. 1–4 are detailed in Supplementary Information. Data used in Figs. 2 and 3 and Supplementary Tables 2 and 11 for emission assessment were sourced from research findings, international industry associations and official government documents (https://www.stats.gov.cn/english/), as outlined and accordingly referenced in Methods. Published data regarding respirable quartz in workplace air and atmosphere are derived from references summarized in Supplementary Tables 1 and 6. Parameters used for assessing carcinogenic and non-carcinogenic risks are sourced from official government documents, introduced in Supplementary equations 2–5 and cited in the references (https://www.epa.gov/sites/production/files/2015-09/documents/rags_a.pdf; https://www.mee.gov.cn/). Information concerning samples from actual industrial activities is presented in Supplementary Table 9. The maps (Figs. 2 and 3 and Supplementary Fig. 2) are based on free vector data sourced from the ‘Database of National Catalogue Service for Geographic Information [GS(2020)4619]’ (https://www.resdc.cn/DOI/doi.aspx?DOIid=122) and were created using ArcGIS (version 10.2) software. Source data are provided with this paper.
References
IARC Monographs on the Evaluation of Carcinogenic Risks to Humans Vol. 48, 691 (International Agency for Research on Cancer, 1995).
Working Group on the Evaluation of Carcinogenic Risks to Humans—Silica Dust, Crystalline, in the Form of Quartz or Cristobalite (International Agency for Research on Cancer, 2012).
The 15th Report on Carcinogens (RoC) by the National Institutes of Health (NIH, 2021).
Brown, T. P. & Rushton, L. Mortality in the UK industrial silica sand industry: a retrospective cohort study. Occup. Environ. Med. 62, 446–452 (2005).
Rushton, L. Chronic obstructive pulmonary disease and occupational exposure to silica. Rev. Environ. Health 22, 255–272 (2007).
Matthias, M. et al. Chronic obstructive pulmonary disease and longitudinal changes in pulmonary function due to occupational exposure to respirable quartz. Occup. Environ. Med. 70, 9–14 (2013).
Hnizdo, E. & Vallyathan, V. Chronic obstructive pulmonary disease due to occupational exposure to silica dust: a review of epidemiological and pathological evidence. Occup. Environ. Med. 60, 237–243 (2003).
Seaton, A. et al. Quartz and pneumoconiosis in coalminers. Lancet 318, 1272–1275 (1981).
Leung, C. C. et al. Silicosis. Lancet 379, 2008–2018 (2012).
Infante-Rivard, C. et al. Lung cancer mortality and silicosis in quebec. Lancet 334, 1504–1507 (1989).
Steenland, K. et al. Pooled exposure–response analyses and risk assessment for lung cancer in 10 cohorts of silica-exposed workers: an IARC multicentre study. Cancer Causes Control 12, 773–784 (2001).
Fenwick, S. & Main, J. Increased prevalence of renal disease in silica-exposed workers. Lancet 356, 913–914 (2000).
Qi, Y. et al. Passage of exogeneous fine particles from the lung into the brain in humans and animals. Proc. Natl Acad. Sci. USA 119, e2117083119 (2022).
Occupational Exposure to Respirable Crystalline Silica (Occupational Safety and Health Administration, US Department of Labor, 2016).
GBD 2019 Diseases and Injuries Collaborators. Global burden of 369 diseases and injuries in 204 countries and territories, 1990–2019: a systematic analysis for the Global Burden of Disease Study 2019. Lancet 396, 1204–1222 (2020).
Silica, Some Silicates, Coal Dust and para-Aramid Fibrils. in IARC Monographs on the Evaluation of Carcinogenic Risks to Humans Vol. 68, 1–475 (International Agency for Research on Cancer, 1997).
Concise International Chemical Assessment Document—Crystalline Silica, Quartz (World Health Organization, 2000).
Wargala, E. et al. Health effects of dyes, minerals, and vitamins used in cosmetics. Women 1, 223–237 (2021).
Oberschelp, C. et al. Global emission hotspots of coal power generation. Nat. Sustain. 2, 113–121 (2019).
Bo, X. et al. Effect of strengthened standards on Chinese ironmaking and steelmaking emissions. Nat. Sustain. 4, 811–820 (2021).
Li, G. et al. Variation of airborne quartz in air of Bei**g during the Asia-Pacific Economic Cooperation Economic Leaders’ Meeting. J. Environ. Sci. 39, 62–68 (2016).
Qian, H. et al. Air pollution reduction and climate co-benefits in China’s industries. Nat. Sustain. 4, 417–425 (2021).
Hill, J. et al. Air-quality-related health damages of maize. Nat. Sustain. 2, 397–403 (2019).
Wernli, K. J. et al. Occupational risk factors for esophageal and stomach cancers among female textile workers in Shanghai, China. Am. J. Epidemiol. 163, 717–725 (2006).
Patrick, H. et al. Cross-sectional silica exposure measurements at two zambian copper mines of Nkana and Mufulira. Int. J. Environ. Res. Public Health 5, 86–90 (2008).
Rando, R. J. et al. Cohort mortality study of North American industrial sand workers. III. Estimation of past and present exposures to respirable crystalline silica. Ann. Occup. Hyg. 45, 209–216 (2001).
Andersson, L. et al. Quartz and dust exposure in Swedish iron foundries. J. Occup. Environ. Hyg. 6, 9–18 (2009).
Linch, K. D. Respirable concrete dust—silicosis hazard in the construction industry. Appl. Occup. Environ. Hyg. 17, 209–221 (2002).
Akbar-Khanzadeh, F. & Brillhart, R. L. Respirable crystalline silica dust exposure during concrete finishing (grinding) using hand-held grinders in the construction industry. Ann. Occup. Hyg. 46, 341–346 (2002).
Scarselli, A. et al. Evaluation of workplace exposure to respirable crystalline silica in Italy. Int. J. Occup. Environ. Health 20, 301–307 (2014).
Rumchev, K. et al. Case report: exposure to respirable crystalline silica and respiratory health among Australian mine workers. Front. Public Health 10, 798472 (2022).
Mamuya, S. H. et al. High exposure to respirable dust and quartz in a labour-intensive coal mine in Tanzania. Ann. Occup. Hyg. 50, 197–204 (2006).
Mohammadyan, M. et al. Occupational exposure to respirable crystalline silica in the Iranian Mazandaran province industry workers. Arh. Hig. Rada. Toksikol. 64, 139–143 (2013).
Yassin, A. et al. Occupational exposure to crystalline silica dust in the United States, 1988–2003. Environ. Health Perspect. 113, 255–260 (2005).
Salamon, F. et al. Occupational exposure to crystalline silica in artificial stone processing. J. Occup. Environ. Hyg. 18, 547–554 (2021).
Galea, K. S. et al. Occupational exposure to respirable dust, respirable crystalline silica and diesel engine exhaust emissions in the London tunnelling environment. Ann. Occup. Hyg. 60, 263–269 (2016).
Exposure to Quartz at the Workplace, Federation of Institutions for Statutory Accident Insurance and Prevention (BGIA, 2006).
Emission Measurement Reports (LfU, 2006).
Ehrlich, C. et al. Respirable crystalline silica (RCS) emissions from industrial plants—results from measurement programmes in Germany. Atmos. Environ. 68, 278–285 (2013).
Emission Measurement Reports (LUWG, 2007).
Emission Measurement Reports 2005–2008 (LAU, 2009).
Chaklader, A. C. D. Effect of trace Al2O3 on transformation of quartz to cristobalite. J. Am. Ceram. Soc. 44, 175–180 (1961).
Nanri, H. et al. Mineralizing action of iron in amorphous silica. J. Non-Cryst. Solids 203, 375–379 (1996).
Air Pollutant Emission Inventory Guidebook 2019—Technical Guidance to Prepare National Emission Inventories (EMEP/EEA, 2019).
Toolkit for Identification and Quantification of Releases of Dioxins, Furans and Other Unintentional POPs under Article 5 of the Stockholm Convention (UNEP, 2013).
The Occupational Exposure Limit (Canadian Centre for Occupational Health and Safety, 2022).
Richards, J. & Brozell, T. Assessment of community exposure to ambient respirable crystalline silica near frac sand processing facilities. Atmosphere 6, 960–982 (2015).
Risk Assessment Guidance for Superfund Volume I Human Health Evaluation Manual (Part A)). EPA https://www.epa.gov/sites/production/files/2015-09/documents/rags_a.pdf (1989).
Stationary Source Emission—Determination of Mass Concentration of Particulate Matter at Low Concentration—Manual Gravimetric Method (Ministry of Ecology and Environment of the People’s Republic of China, 2017).
Stationary Source Emissions—Determination of the Mass Concentration of PCDDs/PCDFs and Dioxin-Like PCBs - Part 1: Sampling of PCDDs/PCDFs (European Standardization Committee, 2006).
Hinds, W. C. Aerosol Technology: Properties, Behavior, and Measurement of Airborne Particles, Second Edition (Wiley, 1999).
American Conference of Governmental Industrial Hygienists, 2022 TLVs and BEIs: Based on the Documentation of the Threshold Limit Values for Chemical Substances and Physical Agents & Biological Exposure Indices (American Conference of Governmental Industrial Hygienists, 2022).
Silica, Crystalline, by XRD: Method 7500 (National Institute for Occupational Safety and Health, 2003).
Handbook of Emission Sources Inventory Survey, Pollution Discharge Calculation Methods, and Coefficients (Ministry of Ecology and Environment of the People’s Republic of China, 2021).
Acknowledgements
This work was supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (grant numbers XDB0750400, XDB0750100, XDB0750000) (G.L.), National Natural Science Foundation of China (grant numbers 92143201 (G.L.), 22076201 (G.L.), 21936007 (M.Z. and L.Y.) and 22376204 (L.Y.)), Chinese Academy of Sciences Project for Young Scientists in Basic Research (grant number YSBR-086) (G.J) and the Second Tibetan Plateau Scientific Expedition and Research Program (STEP) (grant number 2019 QZKK0605) (G.L.). We thank C. Yuan, D. Pan, C. Li, P. Lv, F. Yang, Y. Li, J. Yang, X. Han, N. Sang and H. Yin for their great help in sample collection. We appreciate Q. Liu for his insightful discussion on the revised paper.
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Q.Y. conducted the production site field surveys, collected samples, designed the experiments, analysed the data and authored the paper. G.L. conceptualized the study, conducted field surveys, wrote and revised the paper and acquired funding. L.Y. collected samples, designed the experiment, analysed the data, revised the paper and acquired funding. J.Y., X.Z. and C.Z. assisted with sample preparation. M.Z. supervised the study and secured funding. G.J. supervised the study and secured funding. All authors approved the final paper.
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Yang, Q., Liu, G., Yang, L. et al. Atmospheric emissions of respirable quartz from industrial activities in China. Nat Sustain (2024). https://doi.org/10.1038/s41893-024-01388-6
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DOI: https://doi.org/10.1038/s41893-024-01388-6
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