Get the air quality forecast for a ZIP code.
Returns forecast AQI values and health categories for upcoming days,
typically covering today and the next 1-2 days.
Args:
zip_code: US ZIP code (e.g. '20001').
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China Air Quality MCP — nationwide hourly AQI from CNEMC (中国环境监测总站). 中国空气质量实时数据…
Free, keyless real-time air quality (US AQI plus PM2.5, PM10, ozone, NO2, SO2, CO) for any city.