Correlation between traffic and particle size distribution in a street canyon

نویسندگان

  • J. Voigtländer
  • A. Wiedensohler
چکیده

Correlation between traffic density and particle size distribution in a street canyon and the dependence on wind direction J. Voigtländer, T. Tuch, W. Birmili, and A. Wiedensohler Leibniz Institute for Tropospheric Research, Leipzig, Germany UFZ Center for Environmental Research, Department of Human Exposure Research and Epidemiology, Leipzig, Germany Received: 14 February 2006 – Accepted: 6 March 2006 – Published: 22 May 2006 Correspondence to: J. Voigtländer ([email protected])

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Correlation between traffic density and particle size distribution in a street canyon and the dependence on wind direction

Combustion of fossil fuel in gasoline and diesel powered vehicles is a major source of aerosol particles in a city. In a street canyon, the number concentration of particles smaller than 300 nm in diameter, which can be inhaled and cause serious health effects, is dominated by particles originating from this source. In this study we measured both, particle number size distribution and traffic d...

متن کامل

Numerical Simulation of Ultrafine Particle Dispersion in Urban Street Canyons with the Spalart-Allmaras Turbulence Model

The increased traffic emissions and reduced ventilation of urban street canyons lead to the formation of high particle concentrations as a function of the related flow field and geometry. In this context, the use of advanced modelling tools, able to evaluate particle concentration under different traffic and meteorological conditions, may be helpful. In this work, a numerical scheme based on th...

متن کامل

Street versus rooftop level concentrations of 1 fine particles in a Cambridge street canyon

3 Dispersion of particles, as evidenced by changes in their number distributions (PNDs) and 4 concentrations (PNCs), in urban street canyons, is still not well understood. This study compares 5 measurements by a fast–response particle spectrometer (DMS500) of the PNDs and the PNCs (5– 6 1000 nm, sampled at 1 Hz) at street and rooftop levels in a Cambridge (UK) street canyon, and 7 examines mixi...

متن کامل

Pseudo - simultaneous measurements for the vertical variation of coarse , fine and ultrafine 2 particles in an urban street canyon 3 Authors 4

Pseudo–simultaneous measurements for vertical variation of coarse, fine and ultra fine particles in an urban street canyon. Atmospheric Environment 42, 4304–4319. Abstract 1 The vertical variation of particle number distributions and concentrations in a street 2 canyon is the result of the competing influences of meteorology, traffic and transformation 3 processes overall and for various partic...

متن کامل

Flow characteristics and particle mass and number concentration variability within a busy urban street canyon

Mean and turbulent flow characteristics together with particle concentrations were measured in a busy urban street canyon in Essen, Germany, at five (flow characteristics) and three heights (particles) above ground, respectively. Particle mass and number concentrations were sampled in the size range 0.3oDpo10 mm. The flow characteristics within the canyon were significantly influenced by canyon...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2006