Baltimore Region
Air quality averages across the greater Baltimore area from Jan 1, 2025 to Jun 30, 2025.
Average PM2.5
Average PM2.5 (µg/m3) levels across the region
GoodModerateUnhealthy for Sensitive Groups
UnhealthyVery UnhealthyHazardous
GoodGood
ModModerate
USGUnhealthy for Sensitive Groups
UnhUnhealthy
VUnhVery Unhealthy
HazHazardous
0935.455.4125.4225.4260+
98th Percentile PM2.5
98th Percentile PM2.5 (µg/m3) levels across the region
Percentiles estimated using hourly (<50 days) or daily averaged (≥50 days) PM2.5 data.GoodModerateUnhealthy for Sensitive Groups
UnhealthyVery UnhealthyHazardous
GoodGood
ModModerate
USGUnhealthy for Sensitive Groups
UnhUnhealthy
VUnhVery Unhealthy
HazHazardous
0935.455.4125.4225.4260+