As primary emissions have been declining in recent decades in China, secondary pollution,
like ozone (O 3) and secondary aerosols are main pollutants deteriorating air quality. The …

This study presents the measurement of photochemical precursors during the lockdown
period from January 23, 2020, to March 14, 2020, in Chengdu in response to the …

As the two important ambient air pollutants, particulate matter (PM 2.5) and ozone (O 3) can
both originate from gas nitrogen oxides. In this study, applied by theoretical analysis and …

The impact of thermally driven mountain-valley breezes (MVB) on the atmospheric
environment remains poorly understood, especially in ozone (O 3)-polluted regions with …

During the COVID-19 pandemic changes in human activity became widespread through
official policies and organically in response to the virus's transmission, which in turn …

A multi-lidar system, mounted in a vehicle to monitor the profiles of temperature, wind, and
particle optical properties, was utilized to investigate the winter fine particulate matter (PM …

In this study, we developed an observation based photochemical box model with the
measurement data collected at a suburban site (ie, the Xianghe, XH site) of the Beijing …

China. The implementation of comprehensive clean air actions, primarily targeting
reductions in nitrogen oxides (NOx), sulfur dioxide (SO2), and primary particulate matter …

The influence of cold fronts on the formation of ozone (O 3) pollution, particularly the
contributions of physical and chemical processes to O 3 abundance during the passage of …

We conducted a comparative study on chemical composition of organic aerosols (OA)
collected in urban and marine atmosphere, respectively, using three mass spectrometers …