Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-16139-2018 |
Non-methane hydrocarbon variability in Athens during wintertime: the role of traffic and heating | |
Panopoulou, Anastasia1,2,4; Liakakou, Eleni2; Gros, Valerie3; Sauvage, Stephane4; Locoge, Nadine4; Bonsang, Bernard3; Psiloglou, Basil E.2; Gerasopoulos, Evangelos2; Mihalopoulos, Nikolaos1,2 | |
2018-11-09 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:21页码:16139-16154 |
文章类型 | Article |
语种 | 英语 |
国家 | Greece; France |
英文摘要 | Non-methane hydrocarbons (NMHCs) play an important role in atmospheric chemistry, contributing to ozone and secondary organic aerosol formation. They can also serve as tracers for various emission sources such as traffic, solvents, heating and vegetation. The current work presents, for the first time to our knowledge, time-resolved data of NMHCs, from two to six carbon atoms, for a period of 5 months (mid-October 2015 to mid-February 2016) in the "greater Athens area" (GAA), Greece. The measured NMHC levels are among the highest reported in the literature for the Mediterranean area during winter months, and the majority of the compounds demonstrate a remarkable day-to-day variability. Their levels increase by up to factor of 4 from autumn (October-November) to winter (December-February). Microscale meteorological conditions, especially wind speed in combination with the planetary boundary layer (PBL) height, seem to contribute significantly to the variability of NMHC levels, with an increase of up to a factor of 10 under low wind speed (< 3 ms(-1))conditions; this reflects the impact of local sources rather than long-range transport. All NMHCs demonstrated a pronounced bimodal, diurnal pattern with a morning peak followed by a second peak before midnight. The amplitude of both peaks gradually increased towards winter, in comparison to autumn, by a factor of 3 to 6 and closely followed that of carbon monoxide (CO), which indicates a contribution from sources other than traffic, e.g., domestic heating (fuel or wood burning). By comparing the NMHC diurnal variability with that of black carbon (BC), its fractions associated with wood burning (BCwb) and fossil fuel combustion (BCff), and with source profiles we conclude that the morning peak is attributed to traffic while the night peak is mainly attributed to heating. With respect to the night peak, the selected tracers and source profiles clearly indicate a contribution from both traffic and domestic heating (fossil fuel and wood burning). NMHCs slopes versus BCwb are similar when compared with those versus BCff (slight difference for ethylene), which indicates that NMHCs are most likely equally produced by wood and oil fossil fuel burning. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000449653900002 |
WOS关键词 | VOLATILE ORGANIC-COMPOUNDS ; AIR-QUALITY OBSERVATIONS ; SEA-BREEZE CIRCULATION ; COMPOUNDS VOCS ; ATMOSPHERIC CHEMISTRY ; EMISSION FACTORS ; ECONOMIC-CRISIS ; URBAN AREA ; PART I ; GREECE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/22810 |
专题 | 地球科学 |
作者单位 | 1.Univ Crete, Dept Chem, ECPL, Iraklion 71003, Crete, Greece; 2.Natl Observ Athens, Inst Environm Res & Sustainable Dev, Athens 15236, Greece; 3.CEA Orme Merisiers, UVSQ, CEA, LSCE,CNRS,Unite Mixte, F-91191 Gif Sur Yvette, France; 4.Univ Lille, IMT Lille Douai, SAGE, Dept Sci Atmosphere & Genie Environm, F-59000 Lille, France |
推荐引用方式 GB/T 7714 | Panopoulou, Anastasia,Liakakou, Eleni,Gros, Valerie,et al. Non-methane hydrocarbon variability in Athens during wintertime: the role of traffic and heating[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(21):16139-16154. |
APA | Panopoulou, Anastasia.,Liakakou, Eleni.,Gros, Valerie.,Sauvage, Stephane.,Locoge, Nadine.,...&Mihalopoulos, Nikolaos.(2018).Non-methane hydrocarbon variability in Athens during wintertime: the role of traffic and heating.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(21),16139-16154. |
MLA | Panopoulou, Anastasia,et al."Non-methane hydrocarbon variability in Athens during wintertime: the role of traffic and heating".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.21(2018):16139-16154. |
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