气候变化领域集成服务门户(CCPortal): Dramatic increase in reactive volatile organic compound (VOC) emissions from ships at berth after implementing the fuel switch policy in the Pearl River Delta Emission Control Area

CCPortal

DOI	10.5194/acp-20-1887-2020
	Dramatic increase in reactive volatile organic compound (VOC) emissions from ships at berth after implementing the fuel switch policy in the Pearl River Delta Emission Control Area
	Wu Z.; Zhang Y.; He J.; Chen H.; Huang X.; Wang Y.; Yu X.; Yang W.; Zhang R.; Zhu M.; Li S.; Fang H.; Zhang Z.; Wang X.
发表日期	2020
ISSN	16807316
起始页码	1887
结束页码	1900
卷号	20 期号:4
英文摘要	Limiting fuel sulfur content (FSC) is a widely adopted approach for reducing ship emissions of sulfur dioxide (SO2) and particulate matter (PM), particularly in emission control areas (ECAs), but its impact on the emissions of volatile organic compounds (VOCs) is still not well understood. In this study, emissions from ships at berth in Guangzhou, southern China, were characterized before and after the implementation of the fuel switch policy (IFSP) with an FSC limit of 0.5% in the Pearl River Delta ECA (ECA-PRD). After IFSP, the emission factors (EFs) of SO2 and PM2.5 for the coastal vessels decreased by 78% and 56% on average, respectively; however, the EFs of the VOCs were 1807±1746 mg kg-1, approximately 15 times that of 118±56:1 mg kg-1 before IFSP. This dramatic increase in the emissions of the VOCs might have been largely due to the replacement of high-sulfur residual fuel oil with low-sulfur diesel or heavy oils, which are typically richer in short-chain hydrocarbons. Moreover, reactive alkenes surpassed alkanes to become the dominant group among the VOCs, and lowcarbon- number VOCs, such as ethylene, propene and isobutane, became the dominant species after IFSP. As a result of the largely elevated EFs of the reactive alkenes and aromatics after IFSP, the emitted VOCs per kilogram of fuel burned had nearly 29 times greater ozone formation potential (OFP) and approximately 2 times greater secondary organic aerosol formation potential (SOAFP) than those before IFSP. Unlike the coastal vessels, the river vessels in the region used diesel fuels consistently and were not affected by the fuel switch policy, but the EFs of their VOCs were 90% greater than those of the coastal vessels after IFSP, with approximately 120% greater fuel-based OFP and 70 % 140%greater SOAFP. The results from this study suggest that while the fuel switch policy could effectively reduce SO2 and PM emissions, and thus help control PM2.5 pollution, it will also lead to greater emissions of reactive VOCs, which may threaten ozone pollution control in harbor cities. This change for coastal or oceangoing vessels, in addition to the large amounts of reactive VOCs from the river vessels, raises regulatory concerns for ship emissions of reactive VOCs. © 2020 American Institute of Physics Inc.. All rights reserved.
关键词	atmospheric pollution emission control fuel consumption policy implementation traffic emission volatile organic compound China Guangdong Guangzhou Zhujiang Delta
语种	英语
来源机构	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132230
推荐引用方式 GB/T 7714	Wu Z.,Zhang Y.,He J.,et al. Dramatic increase in reactive volatile organic compound (VOC) emissions from ships at berth after implementing the fuel switch policy in the Pearl River Delta Emission Control Area[J]. Atmospheric Chemistry and Physics,2020,20(4).
APA	Wu Z..,Zhang Y..,He J..,Chen H..,Huang X..,...&Wang X..(2020).Dramatic increase in reactive volatile organic compound (VOC) emissions from ships at berth after implementing the fuel switch policy in the Pearl River Delta Emission Control Area.,20(4).
MLA	Wu Z.,et al."Dramatic increase in reactive volatile organic compound (VOC) emissions from ships at berth after implementing the fuel switch policy in the Pearl River Delta Emission Control Area".20.4(2020).