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| Research on VOCs chemical species profile of major industries based on chemical mechanisms in Tianjin |
| ZHOU Yang1,2, YAO Li-ying1,2, ZHANG Li-na1,2, WANG Tong-meng2,3, WANG Wen-xiu2,3, HUANG Hao-yun1,2 |
1. Tianjin Academy of Environment Sciences, Tianjin 300191;
2. Tianjin Air Pollution Control Laboratory, Tianjin 300191;
3. Tianjin Foresight Technology Development Co. Ltd, Tianjin 300191 |
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Abstract The VOCs chemical species profiles from industrial sources in Tianjin were established by field sampling method based on 13major VOCs-related industries including automobile manufacturing, furniture production, packaging & printing, pharmaceutical industry, etc. The local model-ready source profiles were further established based on chemical mechanism CB05 and SAPRC99, and then compared to those from SPECIATE in EPA. The influence of different atmospheric chemistry mechanisms on O3generation was verified by photochemical air quality model. The results showed that:the model-ready source profiles based on SAPRC99have a large deviation from SPECIATE than that based on CB05. There were relatively fewer differences in local model-ready sources profiles among automobile manufacturing, furniture production, musical instrument manufacturing, coating producing, automotive components manufacturing and tire manufacturing, while more significant differences were revealed in package printing, pharmaceutical manufacturing and other industries. Variation tendencies of the simulation results of O3 by different atmospheric chemical mechanisms showed similar results, while the simulation results based on SAPRC99were slightly higher than that based on CB05.Therefore, it is suggested to employ the CB05when lack of local VOCs source profiles.
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Received: 20 December 2017
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