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Recommendations are indicative. Consult local advisories if you have health concerns.
Get the latest air quality in Merrimac (1860), including PM2.5, PM10, O₃, CO, NO₂, and SO₂ data. This dashboard shows the current AQI and 7-day weather forecast for Merrimac, MA. Learn about pollution levels, humidity, wind, and temperature trends to make informed outdoor activity decisions.
Updated daily using real-time data from Open-Meteo. Check this page regularly for live air pollution updates in Merrimac and surrounding areas.
Waltham (2451) , Dorchester (2122) , Charlestown (2129) , Tyngsboro (1879) , Tewksbury (1876) , Gloucester (1930) , Boston (2108) , Bolton (1740) ,