نتایج جستجو برای: غلظت pm10

تعداد نتایج: 46480  

2015
D Mészáros J Markos D G FitzGerald E H Walters R Wood-Baker

OBJECTIVE Particulate matter with a diameter below 10 µ (PM10) has been a major concern in the Tamar Valley, Launceston, where wood heaters are extensively used. We examined the relationship between PM10 levels, meteorological variables, respiratory medications and hospital admissions for respiratory disease over the decade 1992-2002. METHODS PM10 levels were provided by the Department of Pri...

2006
Ding-Shun Ho Lain-Chuen Juang Yu-Ying Liao Cheng-Cai Wang Chung-Kung Lee Ting-Chu Hsu Shaw-Yang Yang Chung-Chin Yu

A one-year series of hourly average PM10 observations, which was obtained from the urban and national park air monitoring station at Taipei (Taiwan), was analyzed by descriptive statistics and fractal methods to examine the temporal structures of PM10 concentrations. It was found that all PM10 measurements exhibited the characteristic right-skewed unimodal frequency distribution and long-term m...

Journal: :Journal of the Air & Waste Management Association 2006
Mahmoud Abu-Allaban Safeia Hamasha Alan Gertler

Many areas in Jordan suffer from elevated levels of coarse particulate matter (PM10). One potentially significant source of the observed PM is the resuspension of road dust in the vicinity of limestone quarries. To obtain data to assess the impact from this source, PM10 road dust resuspension factors near Abusiiah, a town to the north east of Amman surrounded by many quarries and brick factorie...

Journal: :Remote Sensing 2010
Adelaide Dinoi Maria Rita Perrone Pasquale Burlizzi

Aerosol optical thicknesses (AOTs) by the MODerate Resolution Imaging Spetroradiometer (MODIS) on-board Aqua and Terra satellites, and ground-based measurements of PM10 mass concentrations, collected over three years (2006–2008) at two suburban sites which are 20 km apart, are correlated to assess the use of satellite data for regional air quality studies over Southeastern Italy, in the central...

ژورنال: محیط زیست طبیعی 2018

ددر چند سال اخیر میزان ریزگردها و دیگر آلاینده‌های هوا در استان های جنوبی و جنوب‌غربی ایران افزایش چشمگیری یافته است. یکی از مهمترین متغیرهایی که در این زمینه مورد بررسی قرار می‌گیرد مقدار PM10 می‌باشد. با توجه به ضرورت برآورد و پیش بینی آسان‌تر و کم هزینه‌تر این متغیر، در تحقیقات مختلف از روش‌های آماری متفاوتی به بررسی رابطه آن با دیگر متغیرها پرداخته‌اند. هدف این تحقیق بررسی رابطه بین متغیرها...

2007
B. Sharratt G. Feng L. Wendling

Winter wheat–summer fallow is the conventional cropping system employed on >1·5 million ha within the Columbia Plateau of eastern Washington and northern Oregon. Wind erosion contributes to poor air quality in the region, yet little is known concerning the magnitude of soil and PM10 (particulate matter of ≤10 μm in aerodynamic diameter) loss from agricultural lands. Therefore, loss of soil and ...

Journal: :Occupational and environmental medicine 2000
T Pless-Mulloli D Howel A King I Stone J Merefield J Bessell R Darnell

OBJECTIVES To answer the question whether living near opencast coal mining sites affects acute and chronic respiratory health. METHODS All 4860 children aged 1-11 from five socioeconomically matched pairs of communities close to active opencast sites and control sites away from them were selected. Exposure was assessed by concentrations of particulate matter with aerodynamic diameter < 10 mic...

Journal: :Environmental Health Perspectives 2003
Alvaro R Osornio-Vargas James C Bonner Ernesto Alfaro-Moreno Leticia Martínez Claudia García-Cuellar Sergio Ponce-de-León Rosales Javier Miranda Irma Rosas

Exposure to urban airborne particulate matter (PM) is associated with adverse health effects. We previously reported that the cytotoxic and proinflammatory effects of Mexico City PM10 (less than or equal to 10 micro m mean aerodynamic diameter) are determined by transition metals and endotoxins associated with these particles. However, PM2.5 (less than or equal to 2.5 micro m mean aerodynamic d...

Journal: :Journal of epidemiology and community health 2007
T S Nawrot R Torfs F Fierens S De Henauw P H Hoet G Van Kersschaever G De Backer B Nemery

BACKGROUND Numerous studies have shown a strong association between daily mortality and small particulate with a diameter of <10 microm (PM10) air pollution, but the effects of season have not always been well characterised. AIM To study the shape of the association between short-term mortality and PM10 across seasons and quintiles of outdoor temperature. DESIGN, SETTING AND PARTICIPANTS Da...

Introduction: The aim of this study was to spatial analysis of PM10 concentrations in the ambient air of Yazd in two seasons, and the zoning by using Kriging interpolation method. Finally, different factors affecting the concentrations of PM10 are marked and standards have been investigated Material and methods: The measurement of PM10 particulates was performed by the monitoring device HAZ-...

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