Seasonal source identification and formation processes of marine particulate water soluble organic nitrogen over an offshore island in the East China Sea

Tian, Man-Wen; Li, Hao; Wang, Guochen; Fu, Mengxin; Qin, Xiaofei; Lu, Da; Liu, Chengfeng; Zhu, Yikai; Luo, Xingzhang; Deng, Congrui; Abdullaev, Sabur F.; Huang, Kan

doi:10.1016/j.scitotenv.2022.160895

Cited by 6 publications

(10 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 6c shows that the HCHO value of ZS began to decline in the morning and increased from 14:00 to 18:00. This may relate to changes in wind speed and direction in the island region [26,27]. The HCHO value of the NJ site increased from 10:00 to approximately 14:00, remained constant until 17:00, and then began to decline.…”

Section: Diurnal and Weekly Variations Of Aerosols No2 And Hchomentioning

confidence: 96%

“…The AE peak of the NJ site appeared in the afternoon. Figure 6b shows that the variation in NO2 during the daytime is not apparent at ZS, mainly due to the low traffic emissions, and there was no obvious traffic emission source [27]. In addition, the photolysis of NO2 led to the low NO2 value near noon [8].…”

Section: Diurnal and Weekly Variations Of Aerosols No2 And Hchomentioning

confidence: 98%

“…DOAS has been widely used in studies of the vertical distribution characteristics of atmospheric components in different environments (suburban, regional, island, and offshore) in different regions, e.g., the Beijing-Tianjin-Hebei [9,[17][18][19], the Pearl River Delta region [13,20,21] and the YRD region [22][23][24][25][26][27]. This technology provides a promising method for the accurate monitoring and management of air pollution.…”

Section: Observation Sitementioning

confidence: 99%

“…It is 5 m above the ground. There is no industry and low traffic, but the site is heavily affected by land transport, ships, and marine emissions within the East China Sea (ECS) region [26,27]. Nanjing, a comprehensive national transportation hub with well-developed electronic, automobile, petrochemical, and steel industries, is one of the most important urban areas in the YRD.…”

Section: Observation Sitementioning

confidence: 99%

“…The most important advantage of the MAX-DOAS is that it can simultaneously monitor various atmospheric components, including aerosols, NO 2 , and HCHO, thereby overcoming the errors of atmospheric component monitoring using different instruments. MAX-DOAS has been widely used in studies of the vertical distribution characteristics of atmospheric components in different environments (suburban, regional, island, and offshore) in different regions, e.g., the Beijing-Tianjin-Hebei [9,[17][18][19], the Pearl River Delta region [13,20,21] and the YRD region [22][23][24][25][26][27]. This technology provides a promising method for the accurate monitoring and management of air pollution.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Differences in the Vertical Distribution of Aerosols, Nitrogen Dioxide, and Formaldehyde between Islands and Inland Areas: A Case Study in the Yangtze River Delta of China

Ou,

Hu,

Xing

et al. 2023

Remote Sensing

View full text Add to dashboard Cite

Due to the difference of industrialization degree and meteorological conditions, there are obvious differences in the composition of air pollution between islands and inland areas. With Zhoushan (ZS) and Nanjing (NJ) representing islands and inland cities in the Yangtze River Delta, the differences in vertical distribution of atmospheric components were investigated. A combination of multi-axial differential optical absorption spectroscopy (MAX-DOAS), weather research and forecasting (WRF), and potential source contribution function (PSCF) models were used to obtain vertical distribution data for aerosols, nitrogen dioxide (NO2) and formaldehyde (HCHO), meteorological factors, and pollution sources in summer 2019. The findings indicate that, except for the aerosol extinction coefficient (AE), the atmospheric composition at the ZS site was not significantly stratified. However, the AE, NO2, and HCHO at NJ all displayed a decreasing trend with altitude. Here is the interesting finding that the ZS site has a higher AE value than the NJ site, while NJ displays higher NO2 and HCHO columns than the ZS site. This discrepancy was primarily attributable to Zhoushan City’s extremely low traffic emissions when compared to inland cities. In addition, HCHO in the YRD region was significantly affected by human activities. Analysis of potential pollution sources found that regional transport contributed to differences in atmospheric composition at different altitudes in different regions. Aerosols, NO2, and HCHO in Nanjing were significantly affected by transport in inland areas. Aerosols in Zhoushan were easily affected by transport in the Yellow Sea and East China Sea, and NO2 and HCHO were significantly affected by transport contributions from surrounding areas in inland areas. The study strongly suggests that land and sea breezes play an important role in the vertical distribution of aerosols over island regions.

show abstract

Section: Diurnal and Weekly Variations Of Aerosols No2 And Hchomentioning

confidence: 96%

Section: Diurnal and Weekly Variations Of Aerosols No2 And Hchomentioning

confidence: 98%