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Author: Tarang Kumar Gondwal Publisher: Mohammed Abdul Sattar ISBN: Category : Technology & Engineering Languages : en Pages : 0
Book Description
Road side dusts are the particulate matter of various sizes which gets settled down over earth's surface. The major sources of road dust are mainly due to anthropogenic and natural activities. The airborne particles are mainly composed of road dust. In broad the road dust particles are the mixture of various inorganic and organic particles generated from various natural and anthropogenic sources. The major contamination of inorganic species like metals, non-metals, and organic species in road dust comes from coal, cement, mines etc based industries and get mixed in air by traffic movement or with the action of wind. The demolition of structure and construction waste, wear and tear of tire, brake due to movement of traffic, street sweeping are several other sources of road dust. The road dust also contains several organic materials generated from plants like leaf, bark, plant pollen, waste generated through human like dead skin cells, hairs and also waste generated from usage of paper, food etc. The road dust contains several inorganic and organic species which are very toxic and causes of illness if inhale. These species may originate due to natural as well industrial process like volcanoes, mining, burning of fossil fuels. Even low concentration of several inorganic and organic species if enter in lungs and other inside body parts through mouth or nose may cause detrimental effect on human being especially on Children and old age persons. The size of road dust formed depends on the origin of sources and commercial, industrial, residential and natural processes like erosion from soil, sand and rock, volcanic eruptions, aeolian process, burning of meteorite particles. The particle size generated due to construction activities depends on the cutting, drilling, and grindings processes. The construction sites generated ultra-fine size silica particles which are major threat not only for construction workers but also for environment and green economy. The larger particles generating during construction and other industrial processes remain at the originated place, whereas the smaller particles may travel longer distance.
Author: Tarang Kumar Gondwal Publisher: Mohammed Abdul Sattar ISBN: Category : Technology & Engineering Languages : en Pages : 0
Book Description
Road side dusts are the particulate matter of various sizes which gets settled down over earth's surface. The major sources of road dust are mainly due to anthropogenic and natural activities. The airborne particles are mainly composed of road dust. In broad the road dust particles are the mixture of various inorganic and organic particles generated from various natural and anthropogenic sources. The major contamination of inorganic species like metals, non-metals, and organic species in road dust comes from coal, cement, mines etc based industries and get mixed in air by traffic movement or with the action of wind. The demolition of structure and construction waste, wear and tear of tire, brake due to movement of traffic, street sweeping are several other sources of road dust. The road dust also contains several organic materials generated from plants like leaf, bark, plant pollen, waste generated through human like dead skin cells, hairs and also waste generated from usage of paper, food etc. The road dust contains several inorganic and organic species which are very toxic and causes of illness if inhale. These species may originate due to natural as well industrial process like volcanoes, mining, burning of fossil fuels. Even low concentration of several inorganic and organic species if enter in lungs and other inside body parts through mouth or nose may cause detrimental effect on human being especially on Children and old age persons. The size of road dust formed depends on the origin of sources and commercial, industrial, residential and natural processes like erosion from soil, sand and rock, volcanic eruptions, aeolian process, burning of meteorite particles. The particle size generated due to construction activities depends on the cutting, drilling, and grindings processes. The construction sites generated ultra-fine size silica particles which are major threat not only for construction workers but also for environment and green economy. The larger particles generating during construction and other industrial processes remain at the originated place, whereas the smaller particles may travel longer distance.
Author: Ken Skorseth Publisher: ISBN: Category : Gravel roads Languages : en Pages : 112
Book Description
The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.
Author: Kupiainen, K Publisher: Nordic Council of Ministers ISBN: 9289348003 Category : Technology & Engineering Languages : en Pages : 32
Book Description
Nordic countries suffer from periodic worsening of the air quality during spring with high peak PM10 concentrations (airborne particulate matter with diameter less than 10 µm or 0.01 mm). Characteristic for the high springtime PM10 concentrations are high shares of coarse particles (with diameters between 2.5 and 10µm), a signature of non-exhaust traffic dust formed via abrasion and wear of pavement, traction control materials, vehicle brakes and tyres. This Policy Brief summarizes the current understanding of the road dust system and presents the mitigation measures and policies currently in place in the Nordic countries. It has been compiled as part of the NORTRIP project funded by the Climate and air pollution working group of the Nordic Council of Ministers by researchers from 11 Nordic institutes studying different aspects of traffic non-exhaust emissions and road dust.
Author: Publisher: ISBN: Category : Express highways Languages : en Pages : 134
Book Description
This study was directed to the development of dust control and mitigation strategies for improving visibility and preventing vehicle accidents during dust storms along Interstate I-10, in Arizona. During the period 1985 to 1996, 46 dust-related accidents occurred on I-10, mostly between Phoenix and the New Mexico border. Most of these accidents occurred in the summer monsoon months of July and August. Based on wind direction analysis for each accident, fugitive dust originated from active and abandoned farmland, disturbed desert areas, an ostrich farm, unpaved parking lots and roads, and construction sites. Major accident sites were concentrated in the following areas: Vicksburg-Bouse Wash, Buckeye-Goodyear, Phoenix, Firebird Lake Complex, Gila River desert area, Casa Grande-Eloy, Marana, and Bowie-San Simon. Recommended dust control measures include: conservation farming practices, e.g., reduced tillage and limiting livestock; revegetation with shrubs and plants (including orchards) that act as windbreaks; soil stabilization; and watering under limited circumstances. Rigorous dust control plans should be required of any new source areas such as construction sites. Many of these measures have already been implemented along I-10. This accounts for a significantly reduced accident frequency over the past several years. This report also presents an historical overview of Arizona dust warning systems. In addition, state-of-the-art visibility sensors and sand movement sensors are discussed.
Author: Chatten Cowherd Publisher: ISBN: Category : Roads Languages : en Pages : 66
Book Description
This study sought to identify and evaluate different ways to control dust, the cost of each strategy and their effectiveness in reducing emissions from paved and unpaved roads in the East Helena area.
Author: M. K. Reckard Publisher: ISBN: Category : Dust control Languages : en Pages : 56
Book Description
Identifies causes of high spring dust levels on paved and unpaved roads in Mendenhall Valley, Juneau. Recommends strategies to reduce high dust levels.
Author: Tarang Kumar Gondwal
Author: Tarang Kumar Gondwal
Author: Ken Skorseth
Author: Graham Foley
Author: Kupiainen, K 
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Author: Paul James Mack
Author: 
Author: M.A.K. Mohamed
Author: Chatten Cowherd
Author: M. K. Reckard