کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6338678 | 1620366 | 2015 | 33 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mobile monitoring for mapping spatial variation in urban air quality: Development and validation of a methodology based on an extensive dataset
ترجمه فارسی عنوان
نظارت تلفن همراه برای نقشه برداری تغییرات فضایی در کیفیت هوای شهری: توسعه و اعتبارسنجی یک روش مبتنی بر مجموعه داده های گسترده
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کلمات کلیدی
مانیتورینگ موبایل، کیفیت هوای شهری، کربن سیاه، کیفیت بالا، نقشه برداری، تنوع فضایی،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علم هواشناسی
چکیده انگلیسی
A large set of black carbon (BC) measurements was collected in Antwerp, Belgium, using a bicycle equipped with a portable BC monitor (micro-aethalometer). The campaign consisted of 256 and 96 runs along two fixed routes (2 and 5Â km long). Large gradients over short distances and differences up to a factor of 10 in mean BC concentrations aggregated at a resolution of 20Â m are observed. Mapping at such a high resolution is possible, but a lot of repeated measurements are required. After computing a trimmed mean and applying background normalisation, depending on the location 24-94 repeated measurement runs (median of 41) are required to map the BC concentrations at a 50Â m resolution with an uncertainty of 25%. When relaxing the uncertainty to 50%, these numbers reduce to 5-11 (median of 8) runs. We conclude that mobile monitoring is a suitable approach for mapping the urban air quality at a high spatial resolution, and can provide insight into the spatial variability that would not be possible with stationary monitors. A careful set-up is needed with a sufficient number of repetitions in relation to the desired reliability and spatial resolution. Specific data processing methods such as background normalisation and event detection have to be applied.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Environment - Volume 105, March 2015, Pages 148-161
Journal: Atmospheric Environment - Volume 105, March 2015, Pages 148-161
نویسندگان
Joris Van den Bossche, Jan Peters, Jan Verwaeren, Dick Botteldooren, Jan Theunis, Bernard De Baets,