Indonesia's Air Pollution Worsened After China's Plastic Waste Import Ban, Study Finds

Indonesia's air quality has deteriorated significantly following China's 2018 ban on plastic waste imports, according to a recent study. The policy shift, intended to curb pollution in China, has inadvertently created environmental challenges in recipient nations, including Indonesia.

Research conducted by the University of Colorado Boulder and published in the Journal of the Royal Statistical Society, Series C: Applied Statistics indicates a rise in fine particle concentrations around Indonesian open dumpsites between 2018 and 2019. Lead researcher Ellen Considine noted that this increase is linked to a greater volume of plastic waste entering the country and the continued practice of burning trash.

"When high-income countries send plastic waste to middle- and low-income countries, more trash is burned," Considine explained. The study analyzed satellite data from 356 open dumpsites across Indonesia, comparing air quality before and after China's import ban. By isolating the impact of waste imports from other factors like weather, the researchers accurately measured the environmental consequences.

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When high-income countries send plastic waste to middle- and low-income countries, more trash is burned.

The findings show an average 3.3% increase in PM2.5 concentrations near these sites during 2018-2019 compared to the 2012-2017 period. Fine particles are particularly dangerous due to their small size, allowing them to penetrate deep into the lungs and bloodstream. This rise in PM2.5 is associated with a potential 1.9% increase in lung cancer mortality risk and a 3.5% increase in lower respiratory infection mortality risk.

Considine highlighted that previous research often focused on local impacts using ground-level air quality monitors. This study, however, offers a broader regional perspective over a longer timeframe. The research underscores the issue of global environmental injustice, where developed nations offload their waste burdens onto countries with less robust waste management systems, leading to severe health and environmental consequences.

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Our approach is more powerful because we can see changes in air pollution in large-scale regional studies over a period of time and identify its relationship with plastic waste imports.