气候变化领域集成服务门户(CCPortal): Near real-time PM1 chemical composition measurements at a French urban background and coastal site under industrial influence over more than a year: Temporal variability and assessment of sulfur-containing emissions

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DOI	10.1016/j.atmosenv.2020.117960
	Near real-time PM1 chemical composition measurements at a French urban background and coastal site under industrial influence over more than a year: Temporal variability and assessment of sulfur-containing emissions
	Zhang S.; Tison E.; Dusanter S.; Beaugard C.; Gengembre C.; Augustin P.; Fourmentin M.; Delbarre H.; Riffault V.
发表日期	2021
ISSN	13522310
卷号	244
英文摘要	Near real-time measurements of submicron particulate matter (PM1) were carried out at an industrial and coastal site in Dunkirk (Northern France) over a 14-month period (July 2013–September 2014). This site is surrounded by various industrial plants (metallurgy, petrochemistry, food processing, power plant, etc.) and is characterized by intense ship traffic (~700–800 per day along the English Channel) in harbour surroundings. The non-refractory (NR) submicron particles (organics, sulfate, nitrate, ammonium and chloride) and black carbon were measured by an Aerosol Chemical Speciation Monitor (ACSM) and an Aethalometer, respectively. Concomitant monitoring of CO2, SO2, and meteorological parameters was also performed. Both the seasonal (five seasons including two summers) and spatial (four identified sectors of emissions: marine, urban, industrial-urban and industrial) variabilities were investigated. We present a descriptive analysis of the PM1 composition, whose ambient concentrations ranged from less than 1 μg m−3 up to approximately 100 μg m−3 during a few pollution events. Gaseous SO2 and particulate SO4 were systematically observed at high concentrations (up to 310 and 48.2 μg m−3, respectively) when industrial plumes reached the monitoring site. The conversion ratio of particulate (Sp) to total (Stot) sulfur is relatively constant at 0.1 when RH ranges from 30 to 70% but reaches an average value of 0.3 at high RH (90–100%). This reflects an enhancement of SO2-to-SO4 gas-particle conversion processes resulting in an increase of aerosol acidity as shown by a comparison between measured and predicted NH4 concentrations. An impact of the vertical mixing on the SO2-to-SO4 conversion was also observed using vertical turbulence (σw) as a descriptive parameter. Indeed, the conversion ratio (Sp/Stot) was found to be reduced under high turbulence conditions due to dilution effects. © 2020 Elsevier Ltd
英文关键词	ACSM; Aethalometer; Industrial area; Submicron particulate matter
语种	英语
scopus关键词	Aerosols; Chemical speciation; Chlorine compounds; Coastal engineering; Food processing; Industrial emissions; Particles (particulate matter); Particulate emissions; Sulfur; Sulfur dioxide; Turbulence; Waterway transportation; Ambient concentrations; Chemical compositions; Descriptive analysis; Meteorological parameters; Sub-micron particles; Sub-micron particulates; Temporal variability; Turbulence conditions; Urban growth; nitrate; sulfate; sulfur; aerosol; air quality; atmospheric pollution; black carbon; chemical composition; industrial emission; particulate matter; seasonality; speciation (chemistry); sulfur; temporal variation; turbulence; aerosol; Article; autumn; chemical composition; humidity; meteorology; particulate matter; plume; priority journal; seasonal variation; summer; wet deposition; wind speed; winter; Dunkerque; English Channel; France; Hauts-de-France; Nord [Hauts-de-France]
来源期刊	Atmospheric Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144841
作者单位	IMT Lille Douai, Univ. Lille, SAGE - Sciences de l'Atmosphère et Génie de l'Environnement, Lille, F-59000, France; Université du Littoral Côte d'Opale, Laboratoire de Physico-Chimie de l'Atmosphère, Dunkerque, F-59140, France; Atmo Hauts-de-France, Lille, F-59000, France
推荐引用方式 GB/T 7714	Zhang S.,Tison E.,Dusanter S.,et al. Near real-time PM1 chemical composition measurements at a French urban background and coastal site under industrial influence over more than a year: Temporal variability and assessment of sulfur-containing emissions[J],2021,244.
APA	Zhang S..,Tison E..,Dusanter S..,Beaugard C..,Gengembre C..,...&Riffault V..(2021).Near real-time PM1 chemical composition measurements at a French urban background and coastal site under industrial influence over more than a year: Temporal variability and assessment of sulfur-containing emissions.Atmospheric Environment,244.
MLA	Zhang S.,et al."Near real-time PM1 chemical composition measurements at a French urban background and coastal site under industrial influence over more than a year: Temporal variability and assessment of sulfur-containing emissions".Atmospheric Environment 244(2021).