کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6329898 1619782 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of wind speed and relative humidity on atmospheric dust concentrations in semi-arid climates
ترجمه فارسی عنوان
اثر سرعت باد و رطوبت نسبی در غلظت گرد و غبار جو در هوای نیمه خشک
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی
Atmospheric particulate have deleterious impacts on human health. Predicting dust and aerosol emission and transport would be helpful to reduce harmful impacts but, despite numerous studies, prediction of dust events and contaminant transport in dust remains challenging. In this work, we show that relative humidity and wind speed are both determinants in atmospheric dust concentration. Observations of atmospheric dust concentrations in Green Valley, AZ, USA, and Juárez, Chihuahua, México, show that PM10 concentrations are not directly correlated with wind speed or relative humidity separately. However, selecting the data for high wind speeds (> 4 m/s at 10 m elevation), a definite trend is observed between dust concentration and relative humidity: dust concentration increases with relative humidity, reaching a maximum around 25% and it subsequently decreases with relative humidity. Models for dust storm forecasting may be improved by utilizing atmospheric humidity and wind speed as main drivers for dust generation and transport.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volume 487, 15 July 2014, Pages 82-90
نویسندگان
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