Publications by authors named "Zhi-Jian Ding"
To investigate the pollution characteristics and sources of atmospheric brown carbon (BrC) in Chongming Island, a background site of the Yangtze River Delta (YRD) region in China, PM samples collected from December 2018 to January 2019 were analyzed to determine their chemical compositions and optical properties. The results showed that the light absorption coefficient (Abs) of BrC extracted by methanol at 365 nm was (5.39±3.
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- The study focused on analyzing organic aerosol pollution in Chongming Island, China, from late May to mid-August 2018, revealing significant levels of particulate matter (PM) and harmful compounds like alkanes and PAHs.
- Results indicated that 35% of PM samples exceeded the national air quality standard, with pollution levels being notably higher during the night due to the transport of inland pollutants, while daytime conditions showed higher secondary organic aerosol formation.
- The research found that fossil fuel combustion was a major source of alkanes (67%), with vehicle and industrial emissions accounting for 51% of PAHs during pollution periods, whereas ship emissions dominated in cleaner conditions.