DOI: 10.1016/j.atmosenv.2017.09.044
Scopus记录号: 2-s2.0-85032292302
论文题名: Properties of particulate pollution in the port city of Valparaiso, Chile
作者: Marín J ; C ; , Raga G ; B ; , Arévalo J ; , Baumgardner D ; , Córdova A ; M ; , Pozo D ; , Calvo A ; , Castro A ; , Fraile R ; , Sorribas M
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 171 起始页码: 301
结束页码: 316
语种: 英语
英文关键词: Black carbon
; Brown carbon
; Port activities
; Valparaiso
Scopus关键词: Agricultural products
; Atmospheric movements
; Boundary layer flow
; Boundary layers
; Electromagnetic wave absorption
; Light absorption
; Pollution
; Trucks
; Absorption co-efficient
; Black carbon
; Boundary layer heights
; Brown carbons
; Day-to-day variability
; Light absorption coefficients
; Port activities
; Valparaiso
; Bromine compounds
; black carbon
; carbon
; kerosene
; polycyclic aromatic hydrocarbon derivative
; absorption coefficient
; aerosol
; anthropogenic source
; atmospheric pollution
; black carbon
; boundary layer
; brown carbon
; cloud condensation nucleus
; concentration (composition)
; emission
; pollution monitoring
; port
; spatiotemporal analysis
; urban pollution
; aerosol
; air pollutant
; Article
; Chile
; cloud
; environmental monitoring
; environmental temperature
; fog
; heating
; humidity
; light absorption
; measurement accuracy
; meteorology
; Mexico City
; particulate matter
; pollution transport
; priority journal
; seasonal variation
; solar radiation
; traffic
; weather
; wind
; wood
; Chile
; Federal District [Mexico]
; Mexico City
; Mexico [North America]
; Valparaiso [Chile]
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: The city of Valparaiso is home to one of the largest commercial ports on the west coast of South America. Port activities, that continue year-round, 24 h a day and seven days a week, produce emissions of pollutants, particularly aerosol particles composed of black and brown carbon (BC and BrC) that have serious impact on human population and the local environment. A measurement program was launched to document the magnitude of selected pollutants, to identify their sources and to evaluate the meteorological processes that enhance and transport these pollutants locally and regionally. In this study, we report the measurements made during four months: 25July - 25August 2014 (referred to as August 2014 throughout the manuscript), December 2014, January 2015 and March 2015. The daily mass concentrations of equivalent black carbon (eBC), derived from measurements of the light absorption coefficient, regularly exceed 5 μg m−3, a magnitude similar to values found in megacities such as Mexico City. The daily maximum number concentration of condensation nuclei (CN) is usually larger than 30000 cm−3. The Angstrom absorption exponent (AAE), derived from the absorption coefficients at 550 nm and 870 nm, is used to identify the primary sources of BC and BrC. In colder weather, emissions from the diesel fueled buses and trucks and the consumption of kerosene and wood for residential heating are the main sources of BC. In December, local wildfires contributed to the particle mass loading, but the day-to-day variability in boundary layer height and the presence of clouds and fog in occasions inhibited high concentrations. In March, the port activities reach a yearly peak during the seasonal export of agricultural products that translates into much more ship and truck traffic leading to very high eBC concentrations, comparable to values observed during August. The variability in weather patterns underscores the complexity of meteorological processes that drive the evolution and transport of pollution in Valparaiso. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82170
Appears in Collections: 气候变化事实与影响
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作者单位: Departamento de Meteorología, Universidad de Valparaíso, Chile; Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Mexico; Droplet Measurements Technology, United States; Department of Physics, IMARENAB University of León, León, Spain; El Arenosillo – Atmospheric Sounding Station, Atmospheric Research and Instrumentation Branch, INTA, Mazagon-Huelva, Spain; Centro de Estudios Atmosféricos y Astroestadística, Universidad de Valparaíso, Chile; Department of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, United States
Recommended Citation:
Marín J,C,, Raga G,et al. Properties of particulate pollution in the port city of Valparaiso, Chile[J]. Atmospheric Environment,2017-01-01,171