Atmospheric microplastic deposition in a valley city over a five-year period: sources, ecological risks, spatiotemporal distributions and influencing factors

Key Points

• Microplastic deposition poses significant ecological risks in urban environments, requiring attention.
• During a five-year period, high levels of microplastic deposition were recorded, suggesting ongoing environmental issues.
• Data collection involved systematic monitoring of atmospheric microplastic levels over multiple seasons.
• These findings highlight the urgent need for practices to mitigate microplastic pollution in urban settings.