DOI: 10.1016/j.atmosenv.2017.04.038
Scopus记录号: 2-s2.0-85019496835
论文题名: Desert dust contribution to PM10 loads in Italy: Methods and recommendations addressing the relevant European Commission Guidelines in support to the Air Quality Directive 2008/50
作者: Barnaba F ; , Bolignano A ; , Di Liberto L ; , Morelli M ; , Lucarelli F ; , Nava S ; , Perrino C ; , Canepari S ; , Basart S ; , Costabile F ; , Dionisi D ; , Ciampichetti S ; , Sozzi R ; , Gobbi G ; P
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 161 起始页码: 288
结束页码: 305
语种: 英语
英文关键词: Air quality
; Desert-dust
; Directive 2008/50/EC
; Italy
; PM10
; Resuspension
Scopus关键词: Air quality
; Landforms
; Desert dust
; Directive 2008/50/EC
; Italy
; PM10
; Re-suspension
; Dust
; air quality
; desert
; dust
; European Commission
; guideline
; particulate matter
; resuspension
; advection
; air quality
; Article
; chemical analysis
; desert dust
; dust
; environmental management
; Italy
; medical society
; methodology
; mineral dust
; particulate matter
; practice guideline
; priority journal
; urban area
; validation study
; Italy
; Italy
; Lazio
; Roma [Lazio]
; Rome
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: In 2011 the European Commission (EC) released specific ‘Guidelines’ describing the methods to quantify and subtract the contribution of natural sources from the PM10 values regulated by the European Air Quality Directive (2008/50/EC). This work investigates the applicability to Italy of the EC-Methodology suggested for desert-dust, describes main limitations encountered and proposes specific modifications embedded within a ‘revised-Methodology’ to extend/improve its use. The revised-Methodology capabilities are evaluated using original, chemically-resolved mineral-dust mass concentration measurements, showing better performances in predicting timing and absolute values of the desert-dust contribution to the daily-PM10 with respect to the current EC-approach. The revised-Methodology is then translated into an automatic (user-independent) tool tailored to the expected final-users. This tool is applied over Central Italy across a 3-year long period (2012–2014), and over the whole Italian country for a calendar year (2012). The derived results confirm and extend to Italian regions never addressed before some previously observed features of the desert-dust impact over the country, such as a clear latitudinal dependence of the desert-dust impact on the yearly average PM10 (from more than 5 μg/m3 to less than 0.5 μg/m3, going from south to north Italy). The modifications introduced within the revised-Methodology also suggest a non-negligible role of desert-dust resuspension in areas characterized by both high traffic levels and soil sealing (urban areas and along the major Italian routes). In the Rome area, such an effect is found to add a contribution of about 2 μg/m3 (i.e., of 20%) to the mean desert-dust load per dust day (about 10 μg/m3). At the national level, this effect contributes increasing the total number of desert-dust-driven exceedances of the PM10 daily limit value even in the northern regions, where the desert-dust impact on the PM10 yearly average is otherwise limited. These results also indicate the direction for possible mitigation strategies to be applied over impacted areas. The successful implementation of the revised-Methodology over Italy suggests it could represent a valid option for a nationwide standard procedure to quantify the desert-dust contribution to PM10, promoting the homogenisation of the relevant values annually reported to the EC. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82650
Appears in Collections: 气候变化事实与影响
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作者单位: Istituto di Scienze dell'Atmosfera e del Clima (ISAC), Consiglio Nazionale delle Ricerche (CNR), Roma, Italy; Agenzia Regionale Protezione Ambientale del Lazio (ARPA – Lazio), Rieti, Italy; Dipartimento di Fisica e Astronomia, Università di Firenze, Sesto Fiorentino (Firenze), Italy; Istituto Nazionale di Fisica Nucleare (INFN), Sesto Fiorentino (Firenze), Italy; Istituto sull'Inquinamento Atmosferico (IIA), Consiglio Nazionale delle Ricerche (CNR), Monterotondo (Roma), Italy; Dipartimento di Chimica, Università di Roma ‘La Sapienza’, Roma, Italy; Earth Sciences Department, Barcelona Supercomputing Center (BSC), Barcelona, Spain
Recommended Citation:
Barnaba F,, Bolignano A,, Di Liberto L,et al. Desert dust contribution to PM10 loads in Italy: Methods and recommendations addressing the relevant European Commission Guidelines in support to the Air Quality Directive 2008/50[J]. Atmospheric Environment,2017-01-01,161