Large-scale land-sea interactions extend ozone pollution duration in coastal cities along northern China

Zheng, Yanhua; Jiang, Fei; Feng, Shuzhuang; Shen, Yang; Liu, Huan; Guo, Hai; Lyu, Xiaopu; Jia, Mengwei; Lou, Chenxi

doi:10.1016/j.ese.2023.100322

Cited by 3 publications

(1 citation statement)

References 84 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On polluted days, the impact is approximately 4.8 ppb, and on clean days it is 1.6 ppb. In our previous study (Y. Zheng et al., 2024), O 3 pollution in coastal cities in the northern Bohai Sea was analyzed in detail for similar synoptic situations. Pattern 3 is the most frequent pattern occurring on 29.4% of all days and dominating in spring.…”

Section: Resultsmentioning

confidence: 99%

Impact of Marine Shipping Emissions on Ozone Pollution During the Warm Seasons in China

Zheng,

Jiang,

Feng

et al. 2024

JGR Atmospheres

Self Cite

View full text Add to dashboard Cite

As China's land‐based anthropogenic emissions are decreasing, the impact of marine shipping emissions (MSEs) on the atmosphere, especially in coastal areas, deserves further attention. This study investigates the impact of MSEs on MDA8 ozone (O3) levels during the warm seasons of 2017 in China, considering different seasons and synoptic patterns. The results indicate that the average impact of MSEs on O3 decreases from offshore to inland, peaking at over 29.0 ppb at sea and 13.8 ppb along the coast of mainland China. Influenced by precursor emissions, meteorology and other factors, MSEs contribute differently to O3 in Beijing‐Tianjin‐Hebei (BTH), Yangtze River Delta (YRD) and Pearl River Delta (PRD), with contributions of 3.0, 5.2, and 4.9 ppb, respectively, and ranging from 2.7 to 7.3 ppb in 13 coastal port cities. The O3 impacts of MSEs are higher on polluted days than on clean days, especially during onshore winds. In the BTH, MSEs increase O3 by 5.5 ppb on polluted days and 3.0 ppb on clean days with northeast winds from the Bohai Sea. In the YRD, MSEs increase O3 by 9.4 ppb on polluted days and 7.3 ppb on clean days with southeast winds. MSEs significantly increase O3 levels in the PRD by 11.0 ppb on polluted days and 5.0 ppb on clean days with southeast winds. Although the emission inventories, initial and boundary conditions, etc. may introduce uncertainties, our results still provide useful information for O3 pollution management in coastal cities as a reasonable way to track mass contributions.

show abstract

Section: Resultsmentioning

confidence: 99%

Impact of Marine Shipping Emissions on Ozone Pollution During the Warm Seasons in China

Zheng,

Jiang,

Feng

et al. 2024

JGR Atmospheres

Self Cite

View full text Add to dashboard Cite

show abstract

Effects of sea-land breeze on air pollutant dispersion in street networks with different distances from coast using WRF-CFD coupling method

He,

Kang,

Wang

et al. 2024

Sustainable Cities and Society

View full text Add to dashboard Cite

An Ozone Episode in the Urban Agglomerations along the Yangtze River in Jiangsu Province: Pollution Characteristics and Source Apportionment

Cai,

Zhou,

et al. 2024

Atmosphere

View full text Add to dashboard Cite

A severe ozone episode occurred in cities along the Yangtze River of Jiangsu Province (UAYRJS) from 6 to 8 September 2022, with daily maximum 8-h average ozone concentrations in the range of 65.8–119 ppb, peaking in Nanjing on 7 September. We used the air quality model WRF-CMAQ-ISAM and the Lagrange trajectory model HYSPLIT to quantify the ozone contribution of each region and analyze the causes and regional transmission pathways of ozone pollution in the UAYRJS. Based on simulated emissions, we also estimated the contribution of biogenic volatile organic compounds. We found that weather has a negative impact on pollution, and ozone pollution tracks the movement of the Western Pacific Subtropical High. UAYRJS was affected by oceanic pollution, and there was a mutual influence among the area’s cities. On 6 September, the ozone in UAYRJS was mostly locally generated (50–98%); on 7 September, it was dominated by extra-regional transport (50–80%). Isoprene concentrations in UAYRJS increased by 0.03–0.1 ppb on 6 and 7 September compared with 5 September. Sensitivity testing showed that the hourly ozone concentration increased by 0.1–27.8 ppb (7.6–19.1%) under the influence of biogenic emissions. The results provide a scientific basis for future ozone control measures.

show abstract

Large-scale land-sea interactions extend ozone pollution duration in coastal cities along northern China

Cited by 3 publications

References 84 publications

Impact of Marine Shipping Emissions on Ozone Pollution During the Warm Seasons in China

Impact of Marine Shipping Emissions on Ozone Pollution During the Warm Seasons in China

Effects of sea-land breeze on air pollutant dispersion in street networks with different distances from coast using WRF-CFD coupling method

An Ozone Episode in the Urban Agglomerations along the Yangtze River in Jiangsu Province: Pollution Characteristics and Source Apportionment

Contact Info

Product

Resources

About