نتایج جستجو برای: road side pollution

تعداد نتایج: 346749  

2017
Shi V Liu Fu-Lin Chen Jianping Xue

An important factor in evaluating health risk of near-road air pollution is to accurately estimate the traffic-related vehicle emission of air pollutants. Inclusion of traffic parameters such as road length/area, distance to roads, and traffic volume/intensity into models such as land use regression (LUR) models has improved exposure estimation. To better understand the relationship between veh...

Journal: :Neurocomputing 2013
Kit Yan Chan Le Jian

Artificial neural network (ANN) is a commonly used approach to estimate or forecast air pollution levels, which are usually assessed by the concentrations of air contaminants such as nitrogen dioxide, sulfur dioxide, carbon monoxide, ozone, and suspended particulate matters (PMs) in the atmosphere of the concerned areas. Even through ANN can accurately estimate air pollution levels they are num...

Journal: :Journal of environmental monitoring : JEM 2008
David S T Hjortenkrans Bo G Bergbäck Agneta V Häggerud

Today there is consensus concerning the road traffic's role as a metal source. However, there are so far only a few studies which focus on the road side immission patterns regarding distance from roads, and especially in combination with the leachability of heavy metals down the soil profile. In this study, the aim was to analyse concentrations of traffic related metals in road side soils, at d...

2013
M. Hasan S. Rahman P. K. Halder M. Alam M. A. Raquib M. A. Islam P. A. Khan

Mega cities in South Asia are an epitome of traffic snarls and resulting vehicular pollution. Dhaka, a center of polity and economy in Bangladesh, is no exception. This study is focused on the measurement of air pollution levels at traffic congestion and road in Dhaka City. The aim of this paper is to discuss the vehicle engine emissions and the technologies and methodologies available to help ...

2017

Suggest removing from conclusions: “Our findings suggest that air pollution from road traffic in London, which is dominated by diesel exhaust emissions, is adversely affecting fetal growth. These results may be driven by the fine particulate matter (PM2.5 traffic-exhaust) component rather than the gaseous pollutants NO2 and NOX.” While I do not disagree that diesel does dominate road traffic ai...

Amir Sadrnejad, Majid Ehteshami, Meisam Yousefi,

Background and purpose: In the process of rapid urbanization and industrialization in developing countries, environmental pollution is a major concern. One of the fastest growing problems of environmental pollution is an excessive intake of lead in urban soils. Lead concentrations in urban soil may result from human activities such as vehicle emissions and industrial activit...

Journal: :International Journal of Health Sciences (IJHS) 2022

The Air Quality Index (AQI) is a significant tool of risk communication and reporting system. main aim the paper to comparatively analysis air quality index both Delhi Chennai. objective study compute AQI cities compare it. For data for computation are taken from secondary source Central Pollution Control Board (CPCB) Tamil Nadu (TNP). It found that in city pollution anthropogenic natural genes...

2016
Peiqing Li Jie He

A closed-loop drive–vehicle–road–environment system (DVRES) model was established using Adams/Car and Matlab/Simulink. Dynamic responses of lateral tire forces based on tire–road side friction and road geometric characteristics are used to investigate vehicle side slip for geometric design safety estimation. The root mean square, the maximum values of lateral tire forces, comfort limit on curve...

Journal: :Accident; analysis and prevention 2013
Elizabeth Crundall Alex W Stedmon Rossukorn Saikayasit David Crundall

The most common form of motorcycle collision in the UK occurs when another road user fails to give way and pulls out from a side road in front of an oncoming motorcyclist. While research has considered these collisions from the car driver's perspective, no research to date has addressed how motorcyclists approach these potential hazards. This study conducted a detailed analysis of motorcyclist ...

Journal: :جنگل و فرآورده های چوب 0
حسن پوربابایی دانشگاه گیلان رامین نقدی دانشگاه گیلان مهدی حیدری دانشگاه ایلام مهدیه نوری دانشگاه گیلان

in order to evaluate the effects of forest road on regeneration and vegetation composition in district no. 2 shafaroud, a road was selected with the length of 400 m that the altitude, aspect, slope variations and species composition were similar. five transects in right and 5 transects in left side of road, were established as perpendicular. in each transect 5, 15, 25 and 35 m distances were de...

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