Supplementary Material to "impact of 2020 COVID-19 Lockdowns on Particulate Air Pollution Across Europe"

Table S1.Regulated air pollutant measurement methods employed at urban sites.Site PM10 PM2.5 NO NO2 O3 Helsinki on-line microbalance on-line microbalance chemiluminescence chemiluminescence_ Mo converter UV absorption Oslo optical particle counting optical particle counting chemiluminescence chemiluminescence_ Mo converter UV absorption Copenhagen on-line microbalance on-line microbalance chemiluminescence chemiluminescence_ Mo converter UV absorption Rotterdam -attenuation -attenuation chemiluminescence chemiluminescence_ Mo converter UV absorption Leipzig on-line microbalance N/A chemiluminescence chemiluminescence_ Mo converter UV absorption Brussels on-line microbalance (1) on-line microbalance (1) chemiluminescence chemiluminescence_ Mo converter UV absorption Lille on-line microbalance (1) on-line microbalance (1) chemiluminescence chemiluminescence_ Mo converter UV absorption