Spatial and temporal characteristics of air pollutants and their health effects in China during 2019-2020.

This work presents the temporal and spatial characteristics of the major air pollutants and their associated health risks in China from 2019 to 2020, by using the monitoring data from 367 cities. The annual average PM, PM, NO, SO, CO, and O concentrations decreased by 10.9%, 13.

Light-absorbing and fluorescent properties of atmospheric brown carbon: A case study in Nanjing, China.

Brown carbon (BrC), a significant wavelength-dependent atmospheric absorber of solar radiation, plays a key role in photochemistry and long-lasting haze episodes. Herein, two types of BrC extracted from one-year PM samples (June 2017-May 2018 in Nanjing), i.e.