Mapping gaseous dimethylamine, trimethylamine, ammonia,  and their particulate counterparts in marine atmospheres  of China's marginal seas – Part 1: Differentiating  marine emission from continental transport

Chen, Dihui; Shen, Yanjie; Wang, Juntao; Gao, Yang; Gao, Huiwang; Yao, Xiaohong

doi:https://doi.org/10.5194/acp-21-16413-2021

Articles | Volume 21, issue 21

https://doi.org/10.5194/acp-21-16413-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-16413-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 21

Research article

|

09 Nov 2021

Research article |

| 09 Nov 2021

Mapping gaseous dimethylamine, trimethylamine, ammonia, and their particulate counterparts in marine atmospheres of China's marginal seas – Part 1: Differentiating marine emission from continental transport

Dihui Chen, Yanjie Shen, Juntao Wang, Yang Gao, Huiwang Gao, and Xiaohong Yao

Supplement

https://doi.org/10.5194/acp-21-16413-2021-supplement

Data sets

Amines and ammonia concentrations in the atmospheres datasets D. Chen https://doi.org/10.17632/3kpnkkr55c.1

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Short summary

The study provides solid evidence to demonstrate that atmospheric trimethylamine (TMA_gas) and particulate trimethylaminium in PM_2.5 (TMAH+) observed in marine atmospheres were uniquely derived from seawater emissions. As sea-derived TMA_gas correlated significantly with DMA_gas and NH_3gas, sea-derived DMA_gas and NH_3gas can be estimated and can quantify the contribution to the observed species in the marine atmosphere. Similarly, the contributions of primary DMAH+ have also been estimated.