Air pollution as a determinant of food delivery and related plastic waste

Abstract

Plastic waste is a growing environmental concern. The food delivery industry is criticized for its environmental impact, especially its current use of plastic packaging. At the same time, the environment impacts the industry. We show that air pollution is a behavioural driver of food delivery consumption in the urban developing world. Our hypothesis is that individuals are more likely to order delivery when their personal cost of exposure to the outdoor environment rises. We surveyed office workers in three Chinese cities and found that an increase of 100 μg m–3 in particulate matter pollution (PM2.5) raised the propensity to order food delivery by two-fifths of the sample mean. We used photographic evidence to quantify disposable plastic in meal delivery. Data from an online delivery platform with a broad customer base indicate a smaller, but still substantial, causal link between air quality and food delivery. Overall, air pollution control brings plastic waste co-benefits.

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Fig. 1: Distribution of mean PM2.5 concentrations by city and period in our samples.
Fig. 2: Hazy versus clear days induced by atmospheric pollutant removal.
Fig. 3: The impact of PM2.5 on food delivery and the use of plastic packaging across lunch choices.
Fig. 4: Distributed lag models.

Data availability

Data collected in the study 1 panel survey, including pictures uploaded by respondents, are available on Dataverse (https://doi.org/10.7910/DVN/ZFP2CC), along with the environmental data used in both studies. Company data in study 2 are proprietary but, to facilitate approximate verification, the authors share the aggregated data used to prepare the results shown in Supplementary Table 11. Moreover, upon reasonable request, the individual-level data in study 2 are available on an NUS computer (specifically, on a server at the NUS Centre for Behavioural Economics) to replicate all published results from the deposited computer code. Source data are provided with this paper.

Code availability

Code used in this study is available on Dataverse: https://doi.org/10.7910/DVN/ZFP2CC.

References

  1. 1.

    Rochman, C. M. et al. Classify plastic waste as hazardous. Nature 494, 169–171 (2013).

    CAS  PubMed  Google Scholar 

  2. 2.

    MacArthur, E. Beyond plastic waste. Science 358, 843 (2017).

    CAS  PubMed  Google Scholar 

  3. 3.

    Borrelle, S. B. et al. Opinion: why we need an international agreement on marine plastic pollution. Proc. Natl Acad. Sci. USA 114, 9994–9997 (2017).

    CAS  PubMed  Google Scholar 

  4. 4.

    Geyer, R., Jambeck, J. R. & Law, K. L. Production, use, and fate of all plastics ever made. Sci. Adv. 3, e1700782 (2017).

    PubMed  PubMed Central  Google Scholar 

  5. 5.

    Editorial. Closing the plastics loop. Nat. Sustain. 1, 205 (2018).

  6. 6.

    Barnes, D. K. A., Galgani, F., Thompson, R. C. & Barlaz, M. Accumulation and fragmentation of plastic debris in global environments. Phil. Trans. R. Soc. B 364, 1985–1998 (2009).

    CAS  PubMed  Google Scholar 

  7. 7.

    Cózar, A. et al. Plastic debris in the open ocean. Proc. Natl Acad. Sci. USA 111, 10239–10244 (2014).

    PubMed  Google Scholar 

  8. 8.

    Wilcox, C., Van Sebille, E. & Hardesty, B. D. Threat of plastic pollution to seabirds is global, pervasive, and increasing. Proc. Natl Acad. Sci. USA 112, 11899–11904 (2015).

    CAS  PubMed  Google Scholar 

  9. 9.

    Lavers, J. L. & Bond, A. L. Exceptional and rapid accumulation of anthropogenic debris on one of the world’s most remote and pristine islands. Proc. Natl Acad. Sci. USA 114, 6052–6055 (2017).

    CAS  PubMed  Google Scholar 

  10. 10.

    Lebreton, L. et al. Evidence that the Great Pacific Garbage Patch is rapidly accumulating plastic. Sci. Rep. 8, 4666 (2018).

    CAS  PubMed  PubMed Central  Google Scholar 

  11. 11.

    Lamb, J. B. et al. Plastic waste associated with disease on coral reefs. Science 359, 460–462 (2018).

    CAS  PubMed  Google Scholar 

  12. 12.

    Jambeck, J. R. et al. Plastic waste inputs from land into the ocean. Science 347, 768–771 (2015).

    CAS  PubMed  Google Scholar 

  13. 13.

    Marsh, K. & Bugusu, B. Food packaging—roles, materials, and environmental issues. J. Food Sci. 72, R39–R55 (2007).

    CAS  PubMed  Google Scholar 

  14. 14.

    Zhong, R. & Zhang, C. Food delivery apps are drowning China in plastic. The noodles and barbecue arrive within 30 minutes. The containers they come in could be around for hundreds of years thereafter. The New York Times (28 May 2019).

  15. 15.

    Hirschberg, C., Rajko, A., Schumacher, T. & Wrulich, M. The Changing Market for Food Delivery (McKinsey Research, 2016).

  16. 16.

    Semester 1, 2017 Research Report on China’s Online Food Delivery Market (in Chinese) (iiMedia Research Group, 2017).

  17. 17.

    Big Data Analysis of China’s Food Delivery Industry in 2018 (in Chinese) https://www.canyin168.com/glyy/glzx/hydt/76615.html (Chenzhi Technology Company 辰智科技公司, 2019).

  18. 18.

    Quick and dirty: China’s food-delivery business is booming. So is waste. The Economist (19 October 2017).

  19. 19.

    Quarter 1, 2016 Report on China’s Food Delivery Sectors (in Chinese) (BigData Research, 2017).

  20. 20.

    Song, G., Zhang, H., Duan, H. & Xu, M. Packaging waste from food delivery in China’s megacities. Resour. Conserv. Recycl. 130, 226–227 (2018).

    Google Scholar 

  21. 21.

    Lelieveld, J., Evans, J. S., Fnais, M., Giannadaki, D. & Pozzer, A. The contribution of outdoor air pollution sources to premature mortality on a global scale. Nature 525, 367–371 (2015).

    CAS  PubMed  Google Scholar 

  22. 22.

    Marlier, M. E., Jina, A. S., Kinney, P. L. & DeFries, R. S. Extreme air pollution in global megacities. Curr. Clim. Change Rep. 2, 15–27 (2016).

    Google Scholar 

  23. 23.

    Watson, J. G. Visibility: science and regulation. J. Air Waste Manage. Assoc. 52, 628–713 (2002).

    Google Scholar 

  24. 24.

    Zhang, Q. et al. Effects of meteorology and secondary particle formation on visibility during heavy haze events in Beijing, China. Sci. Total Environ. 502, 578–584 (2015).

    CAS  PubMed  Google Scholar 

  25. 25.

    Sun, C., Kahn, M. E. & Zheng, S. Self-protection investment exacerbates air pollution exposure inequality in urban China. Ecol. Econ. 131, 468–474 (2017).

    Google Scholar 

  26. 26.

    Zhang, J. & Mu, Q. Air pollution and defensive expenditures: evidence from particulate-filtering facemasks. J. Environ. Econ. Manag. 92, 517–536 (2018).

    Google Scholar 

  27. 27.

    2016–2017 Research Report on China’s Online Food Delivery Market (in Chinese) (iiMedia Research Group, 2018).

  28. 28.

    A Survey on White-Collar Workers’ Lunch Consumption in Shanghai (in Chinese) https://www.sohu.com/a/132321149_260616 (Shanghai Consumer Council, 2019).

  29. 29.

    Chang, T., GraffZivin, J., Gross, T. & Neidell, M. Particulate pollution and the productivity of pear packers. Am. Econ. J. Econ. Policy 8, 141–169 (2016).

    Google Scholar 

  30. 30.

    Chang, T., GraffZivin, J., Gross, T. & Neidell, M. The effect of pollution on office workers: evidence from call centers in China. Am. Econ. J. Appl. Econ. 11, 151–172 (2019).

    Google Scholar 

  31. 31.

    He, J., Liu, H. & Salvo, A. Severe air pollution and labor productivity: evidence from industrial towns in China. Am. Econ. J. Appl. Econ. 11, 173–201 (2019).

    Google Scholar 

  32. 32.

    Thompson, R. et al. New directions in plastic debris. Science 310, 1117–1117 (2005).

    CAS  PubMed  Google Scholar 

  33. 33.

    2018 China Food Delivery Development Report for 10 Major Cities (in Chinese) (ZSZ and Shanghai Jingcai Information Technology Co., 2018).

  34. 34.

    Sun, C., Zheng, S., Wang, J. & Kahn, M. E. Does clean air increase the demand for the consumer city? Evidence from Beijing. J. Regional Sci. 59, 409–434 (2019).

    Google Scholar 

  35. 35.

    Dominici, F., Greenstone, M. & Sunstein, C. R. Particulate matter matters. Science 344, 257–259 (2014).

    PubMed  PubMed Central  Google Scholar 

  36. 36.

    Muntasir, B. Meteoric rise of online food business. The Dhaka Tribune (26 May 2019).

  37. 37.

    Mundy, S. Competition heats up in India’s online food delivery market. The Financial Times (21 December 2018).

  38. 38.

    Harsono, N. Food delivery business becomes ‘more spicy’. The Jakarta Post (29 March 2019).

  39. 39.

    Vietnam online food delivery market (2018–2023) – the leading players are Vietnammm, Eat.vn, Foody.vn, Now.vn, and Grab Food – ResearchAndMarkets.com. businesswire (15 November 2018).

  40. 40.

    Davis, L. W. & Gertler, P. J. Contribution of air conditioning adoption to future energy use under global warming. Proc. Natl Acad. Sci. USA 112, 5962–5967 (2015).

    CAS  PubMed  Google Scholar 

  41. 41.

    Auffhammer, M., Baylis, P. & Hausman, C. H. Climate change is projected to have severe impacts on the frequency and intensity of peak electricity demand across the United States. Proc. Natl Acad. Sci. USA 114, 1886–1891 (2017).

    CAS  PubMed  Google Scholar 

  42. 42.

    Salvo, A. Electrical appliances moderate households’ water demand response to heat. Nat. Commun. 9, 5408 (2018).

    CAS  PubMed  PubMed Central  Google Scholar 

  43. 43.

    Li, Y., Pizer, W. A. & Wu, L. Climate change and residential electricity consumption in the Yangtze River Delta, China. Proc. Natl Acad. Sci. USA 116, 472–477 (2019).

    CAS  PubMed  Google Scholar 

  44. 44.

    Dominici, F., Peng, R. D., Barr, C. D. & Bell, M. L. Protecting human health from air pollution: shifting from a single-pollutant to a multipollutant approach. Epidemiology 21, 187–194 (2010).

    PubMed  PubMed Central  Google Scholar 

  45. 45.

    Salvo, A., Brito, J., Artaxo, P. & Geiger, F. M. Reduced ultrafine particle levels in Sao Paulo’s atmosphere during shifts from gasoline to ethanol use. Nat. Commun. 8, 77 (2017).

    PubMed  PubMed Central  Google Scholar 

  46. 46.

    He, J., Gouveia, N. & Salvo, A. External effects of diesel trucks circulating inside the Sao Paulo megacity. J. Eur. Economic Assoc. 17, 947–989 (2019).

    Google Scholar 

  47. 47.

    Zhang, L., Wang, T., Lv, M. & Zhang, Q. On the severe haze in Beijing during January 2013: unraveling the effects of meteorological anomalies with WRF-Chem. Atmos. Environ. 104, 11–21 (2015).

    CAS  Google Scholar 

  48. 48.

    Liu, H. & Salvo, A. Severe air pollution and child absences when schools and parents respond. J. Environ. Econ. Manag. 92, 300–330 (2018).

    Google Scholar 

  49. 49.

    Seibert, P. et al. Review and intercomparison of operational methods for the determination of the mixing height. Atmos. Environ. 34, 1001–1027 (2000).

    CAS  Google Scholar 

  50. 50.

    Tang, G. et al. Mixing layer height and its implications for air pollution over Beijing, China. Atmos. Chem. Phys. 16, 2459–2475 (2016).

    CAS  Google Scholar 

  51. 51.

    Chay, K. Y. & Greenstone, M. The impact of air pollution on infant mortality: evidence from geographic variation in pollution shocks induced by a recession. Q. J. Econ. 118, 1121–1167 (2003).

    Google Scholar 

  52. 52.

    List, J. A., Millimet, D. L., Fredriksson, P. G. & McHone, W. W. Effects of environmental regulations on manufacturing plant births: evidence from a propensity score matching estimator. Rev. Econ. Stat. 85, 944–952 (2003).

    Google Scholar 

  53. 53.

    Ashenfelter, O. & Greenstone, M. Using mandated speed limits to measure the value of a statistical life. J. Polit. Econ. 112, S226–S267 (2004).

    Google Scholar 

  54. 54.

    Duranton, G. & Turner, M. A. The fundamental law of road congestion: evidence from US cities. Am. Economic Rev. 101, 2616–2652 (2011).

    Google Scholar 

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Acknowledgements

We thank Q. Chao, J. Miao and Y. F. Toh for research assistance. J.C. acknowledges support from the Singapore Ministry of Education Social Science Research Thematic Grant (no. MOE2016-SSRTG-059, SPIRE). A.S. acknowledges support from the Singapore Ministry of Education Academic Research Fund Tier 1 (no. R122-000-235-112). The funders had no role in study design, data collection and analysis, decision to publish or preparation of the manuscript.

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Contributions

A.S. conceived the hypothesis. J.C., H.L. and A.S. designed the study. A.S. contacted market research companies for quotations and selected MAP under contract (study 1). J.C. obtained the proprietary food delivery company data (study 2). H.L. obtained the environmental data. J.C., H.L. and A.S. analysed the data and wrote the paper.

Corresponding authors

Correspondence to Junhong Chu or Haoming Liu or Alberto Salvo.

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Competing interests

The authors declare no competing interests.

Additional information

Peer review information Primary handling editor: Aisha Bradshaw.

Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Extended data

Extended Data Fig. 1 Prevalence of plastic packaging in food delivery choices.

Pictures uploaded by different office workers as supporting evidence of their lunch choices. The vast majority of pictures show the meal, providing a measure of disposable plastic use (Fig. 3). Examples here are for food delivery service, showing either the meal and/or the receipt.

Extended Data Fig. 2 Low use of plastic packaging in walk-to-restaurant choices.

Pictures uploaded by different office workers as supporting evidence of their lunch choices. The vast majority of pictures show the meal, providing a measure of disposable plastic use (Fig. 3). Examples here are for walk-to-restaurant meals, showing either the meal, restaurant surroundings, or the receipt.

Supplementary information

Supplementary Information

Supplementary Figs. 1–11, Supplementary Tables 1–31, Supplementary Methods and Supplementary References.

Reporting Summary

Source data

Source Data Fig. 1

Contains the statistics shown in Fig. 1.

Source Data Fig. 2

Contains the statistics shown in Fig. 2.

Source Data Fig. 3

Contains the statistics shown in Fig. 3.

Source Data Fig. 4

Contains the statistics shown in Fig. 4.

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Chu, J., Liu, H. & Salvo, A. Air pollution as a determinant of food delivery and related plastic waste. Nat Hum Behav (2020). https://doi.org/10.1038/s41562-020-00961-1

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