SmogRank / Brazil

Air quality in Paraíba do Sul estimated

Rio de Janeiro, Brazil. No ground monitor we can use is in this city, so these numbers are model estimates, not measurements.

≈ 9 µg/m³
Good

Estimated PM2.5, 7-day average to 2026-09-30, about 0.6× the WHO 24-hour guideline. 30-day average ≈ 7 µg/m³.

Model estimate from the Copernicus Atmosphere Monitoring Service (CAMS). No measured city is within 300 km, too few to adjust it, so this is the raw model value, which can be off by half or double. Not ranked on SmogRank's boards.

Last 30 days, estimated

152026-09-01: ≈ 5 µg/m³ (estimate)09-012026-09-02: ≈ 8 µg/m³ (estimate)2026-09-03: ≈ 10 µg/m³ (estimate)2026-09-04: ≈ 8 µg/m³ (estimate)2026-09-05: ≈ 16 µg/m³ (estimate)2026-09-06: ≈ 4 µg/m³ (estimate)2026-09-07: ≈ 3 µg/m³ (estimate)2026-09-08: ≈ 3 µg/m³ (estimate)09-082026-09-09: ≈ 7 µg/m³ (estimate)2026-09-10: ≈ 7 µg/m³ (estimate)2026-09-11: ≈ 5 µg/m³ (estimate)2026-09-12: ≈ 3 µg/m³ (estimate)2026-09-13: ≈ 7 µg/m³ (estimate)2026-09-14: ≈ 3 µg/m³ (estimate)2026-09-15: ≈ 4 µg/m³ (estimate)09-152026-09-16: ≈ 11 µg/m³ (estimate)2026-09-17: ≈ 7 µg/m³ (estimate)2026-09-18: ≈ 5 µg/m³ (estimate)2026-09-19: ≈ 4 µg/m³ (estimate)2026-09-20: ≈ 5 µg/m³ (estimate)2026-09-21: ≈ 7 µg/m³ (estimate)2026-09-22: ≈ 8 µg/m³ (estimate)09-222026-09-23: ≈ 5 µg/m³ (estimate)2026-09-24: ≈ 4 µg/m³ (estimate)2026-09-25: ≈ 8 µg/m³ (estimate)2026-09-26: ≈ 11 µg/m³ (estimate)2026-09-27: ≈ 12 µg/m³ (estimate)2026-09-28: ≈ 9 µg/m³ (estimate)2026-09-29: ≈ 9 µg/m³ (estimate)09-292026-09-30: ≈ 9 µg/m³ (estimate)

Daily means, UTC days. Dashed line: WHO 24-hour guideline (15 µg/m³).

Measured cities nearby

CityDistance7-day average
Duque de Caxias70 km9.6 µg/m³
Nilópolis73 km17.5 µg/m³
Acari74 km8.5 µg/m³
Rio de Janeiro84 km7.5 µg/m³
Itaguaí92 km10.7 µg/m³
Barra da Tijuca94 km8.5 µg/m³

Estimates contain modified Copernicus Atmosphere Monitoring Service information 2026. How estimates are made.