| Issue |
E3S Web Conf.
Volume 561, 2024
The 8th International Conference on Energy, Environment and Materials Science (EEMS 2024)
|
|
|---|---|---|
| Article Number | 02012 | |
| Number of page(s) | 4 | |
| Section | Intelligent Environment Planning and Green Development | |
| DOI | https://doi.org/10.1051/e3sconf/202456102012 | |
| Published online | 09 August 2024 | |
Variation characteristics and influencing factors of mercury exchange flux on asphalt ground
1 Key Laboratory of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China
2 College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
* Corresponding author: ruhai@ouc.edu.cn
Surface mercury release is an important source of atmospheric mercury, and asphalt pavement occupies a high proportion. However, the current characteristics of mercury exchange flux on asphalt ground are unclear, which is not conducive to assessing the contribution of surface mercury release to atmospheric mercury. Therefore, the dynamic flux chamber method was used to measure the variation characteristics of mercury exchange flux on the underlying surface of typical artificial asphalt in Qingdao in four seasons. The average mercury exchange flux of the asphalt ground surface was 0.12±0.38 ng/(m2•h). The mercury flux was mainly released in spring, summer, and autumn, the highest in summer was twice that in spring, and the deposition occurred mainly in winter. Under the influence of meteorological factors and atmospheric mercury concentration, the mercury exchange flux reached its peak value when the light intensity and surface temperature were the highest in spring and autumn, while the peak value in summer occurred after the maximum light intensity and reached its maximum peak value at the highest surface temperature.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.