Figure 1.
Environmental data (carbon monoxide, sulfur dioxide, and NO2 related to vehicular and industrial activity) for Riyadh region March–June 2020 source: Saudi Arabia General Authority for Meteorology and Environmental Protection
Environmental data (carbon monoxide, sulfur dioxide, and NO2 related to vehicular and industrial activity) for Riyadh region March–June 2020 source: Saudi Arabia General Authority for Meteorology and Environmental Protection