Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Linear correlations between lockdown and studied air pollutant concentrations for March 17, 2020 to May 13, 2020.
| CO | O3∗ | NO2 | NO | PM10 | PM2.5 | |
|---|---|---|---|---|---|---|
| Tietê | −0.45 | 0.15 | −0.57 | −0.60 | −0.34 | −0.38 |
| D. Pedro II | −0.14 | 0.11 | −0.42 | −0.33 | −0.23 | −0.26 |
Note: ∗Data from USP-Ipen station.
