Tracer-based characterization of source variations of PM<sub>2.5</sub> and organic carbon in Shanghai influenced by the COVID-19 lockdown
Shuhui Zhu, Qiongqiong Wang, Liping Qiao, Min Zhou, Shan Wang, Shengrong Lou, Dandan Huang, Qian Wang, Shengao Jing, Hongli Wang, Changhong Chen, Cheng Huang, Jian Zhen Yu
Abstract
Contributions of primary and secondary sources to PM<sub>2.5</sub> and organic carbon in Shanghai were quantified before and during the COVID-19 lockdown period.
Topics & Concepts
TRACEREnvironmental chemistryAerosolCoronavirus disease 2019 (COVID-19)Air quality indexTotal organic carbonEnvironmental sciencePollutionParticulatesPollutantNitrateChemistryMeteorologyGeographyPhysicsBiologyMedicineOrganic chemistryPathologyNuclear physicsInfectious disease (medical specialty)DiseaseEcologyAir Quality and Health ImpactsCOVID-19 impact on air qualityAtmospheric chemistry and aerosols