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Shanghai Soil Reveals Vehicle Emissions' Cancer Risk Amid COVID

3/31/2025

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Summary

Story summary

In Shanghai, soil samples from roadside lawns unveiled that vehicle emissions and coal burning are major culprits behind harmful polycyclic aromatic hydrocarbons (PAHs). Remarkably, during the COVID-19 lockdown, PAH levels plummeted due to decreased traffic. Fortunately, the cancer risk from these pollutants remains low, though vehicle emissions still pose the greatest threat.

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Story summary

In Shanghai, soil samples from roadside lawns unveiled that vehicle emissions and coal burning are major culprits behind harmful polycyclic aromatic hydrocarbons (PAHs). Remarkably, during the COVID-19 lockdown, PAH levels plummeted due to decreased traffic. Fortunately, the cancer risk from these pollutants remains low, though vehicle emissions still pose the greatest threat.