نتایج جستجو برای: dust from paved roads or potholes

تعداد نتایج: 7345604  

Industrial activities and high traffic density are the most important heavy metal pollution sources in urban areas. Roadside dust created by atmospheric deposition can be one of the best indicators for heavy metal contamination levels. The present study reports the spatial distribution patterns and degree of heavy metal pollution (Cd, Cr, Ni, Pb, Zn, and As) in 50 roadside dust samples from urb...

Introduction: Heavy metals (HMs) accumulated in the road dust may be transferred to the surrounding land and water bodies and pose ecological risks. Hence, such pollution should be considered, especially in coastal roads. This study focuses on the HMs pollution of dust settled on the surface of coastal roads along the Persian Gulf in Bandar Abbas city. Materials and Methods: In this study, ro...

Journal: :Review of Cognitive Linguistics 2010

Journal: :Journal of Innovative Image Processing 2023

Potholes on roads can cause serious damage to vehicles and accidents, so it is essential detect them quickly accurately. Determining appropriate strategies for ITS (Intelligent Transportation System) service critical. In this study, the proposed solution employs YOLOv5 perform real-time detection of potholes in images videos. The dataset annotated videos containing potholes, were used train fin...

Journal: :Science 1977
A N Rohl A M Langer I J Selikoff

Crushed serpentinite quarried in Montgomery County, Maryland, has been extensively used for paving roads and other surfaces. The mineral assemblage includes antigorite or lizardite as well as chrysotile and tremolite. Air samples taken in the vicinity of serpentine-paved roads show that chrysotile concentrations are about 10(3) times greater than those typically found in urban ambient air in th...

Journal: :Journal of the Air & Waste Management Association 2009
Dongzi Zhu Hampden D Kuhns Scott Brown John A Gillies Vicken Etyemezian Alan W Gertler

The clarity of water in Lake Tahoe has declined substantially over the past 40 yr. Causes of the degradation include nitrogen and phosphorous fertilization of the lake waters and increasing amounts of inorganic fine sediment that can scatter light. Atmospheric deposition is a major source of fine sediment. A year-round monitoring study of road dust emissions around the lake was completed in 200...

جعفری, محمد جواد , حکم‌آبادی, رجبعلی , سوری, حمید ,

Introduction: In developing countries, promotion of road safety is of crucial importance. This paper presents the status of road safety in Iran during 2001 - 2006. . Material and Method: The status of road safety in Iran was surveyed in this descriptive study using road safety indicators a in macro level. Firstly, 46 indicators were identified after studying almost all indicators related to th...

2008
JOHN A. ORGANISCAK John A. Organiscak W. M. RANDOLPH REED

Fugitive dust is generated along unpaved mine roads from intermitlent equipment traffic. Typically. the majority of such traffic consists of trucks hauling either mine product or waste from the surface mine pit andlor the processing plant. Fugitive dust generated along these unpaved mine roads includes particles of all sizes which become airborne. The potential hazards include the deleterious e...

2017
Akhila Daniel Peggy Subirats Jean Dumoulin Vincent Legeay Henrique Oliveira Paulo Lobato

Pavement distresses (damages) are important information for evaluating the road condition and conducting the necessary road maintenance activities. Conventional human visual pavement distress detection method is time consuming, very expensive, labour-intensive and dangerous due to exposure to traffic. Numbers of methods have been introduced for road damage detection in the context of fine struc...

2014
Akhila Daniel

Pavement distresses (damages) are important information for evaluating the road condition and conducting the necessary road maintenance activities. Conventional human visual pavement distress detection method is time consuming, very expensive, labour-intensive and dangerous due to exposure to traffic. Numbers of methods have been introduced for road damage detection in the context of fine struc...

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