Roadside Monitoring (Monitoring and Testing) Articles

Customer applications

At South Coast Science we manufacture devices that solve your problems elegantly. Many new air quality devices come to market stating (as a USP), that they can be configured to any application. To meet this need, these devices may be loaded with software or hardware that is not required today and this additional complexity means there is more to maintain, or go wrong. We prefer to avoid this. ...

Dec. 14, 2020

By South Coast Science Limited

Role of road side plantation in mitigating vehicular emission: a case study of district Swat, Pakistan

The objective of this study was to know the effectiveness of different tree species used for road side plantation in mitigating air pollution. The road was divided into four zones, i.e., peaches, poplar, eucalyptus, pine rich and treeless zone. The ambient air was monitored periodically over a period of one year with three month intervals. The data was statistically analysed with analysis of ...

Jun. 2, 2014

By Inderscience Publishers

Why measuring the ambient NO2 without conversion?

Nitrogen oxides NOx are pollutants that may have particular impact in terms of greenhouse gases, acidifying air etc ... issuance increased significantly since 1950 with the massive development of transport and industries. It therefore becomes necessary to provide measures always safer these pollutant gases, and to know the reliability of results. Currently, 60% of emissions of NO and NO2 are ...

Feb. 7, 2013

By ENVEA

ADMS–Urban: developments in modelling dispersion from the city scale to the local scale

Many countries perform national air quality assessments using grid–based numerical air dispersion models, generally referred to as 'regional' models. Advantages of these models include the ability to use temporally and spatially varying meteorology and model chemical reactions over large temporal and spatial scales. These models usually perform reasonably well against rural and urban background ...

Dec. 28, 2012

By Inderscience Publishers

Numerical simulation of turbulent dispersion on a two-way facing traffic road

A Large Eddy Simulation (LES) model was developed to investigate vehicle-induced turbulence and its effect on turbulent dispersion. The instantaneous behaviour of vehicle exhausts and the time-space averaged distributions of flow and concentration statistics on the roadway were estimated. The patterns of mean flow are significantly different between the one-way and the two-way traffic cases. In ...

Feb. 8, 2011

By Inderscience Publishers

Application of The Air Pollution Model (TAPM) to the urban airshed of Bangkok, Thailand

Bangkok has been faced with air pollution problems as a result of increasing traffic emissions. The Air Pollution Model (TAPM) was employed to simulate carbon monoxide (CO) concentrations based on an emissions inventory data. The hourly CO concentrations from a year-long simulation have been evaluated against observations from six monitoring sites. The simulated concentrations were evaluated ...

Aug. 2, 2010

By Inderscience Publishers

Responses of the urban roadside trees to traffic environment

Purpose: The study is understand the relation between urban roadside tree growth and the traffic environment and an improvement to the traffic environment by using urban roadside trees. Design/methodology/approach: Eight common urban roadside trees subjected to many pollutants from automobile emissions were selected for research. The comparatively pollution-free parks far from the traffic ...

Dec. 4, 2009

By Inderscience Publishers

Manganese levels and chemical fractionation in street dust in South Africa

Mn in street dust and soil from selected roads was studied to assess the contribution of combustion of vehicular methylcyclopentadienyl manganese tricarbonyl (MMT) to Mn levels and distribution in Pretoria, South Africa. Total Mn concentrations ranged from (329.1-863.9 μg g−1) for dust and (215.8-450.6 μg g−1) for soil. These values were significantly higher than the mean value (278.9 μg g−1) ...

Mar. 10, 2009

By Inderscience Publishers

Elemental composition of airborne aerosols at a traffic site and a suburban site in Hong Kong

Forty elemental concentrations in different size particles were measured at a roadside site and a suburban site of Hong Kong using a ten-stage MOUDI impactor (Mode 110). Some elements (Cr, Fe, Co, Cu, As and Ba) have clear spatial variability, with ∼100% higher concentrations in roadside atmosphere than in suburban atmosphere, showing obviously vehicle-related sources for those elements. However, ...

Dec. 9, 2008

By Inderscience Publishers

Inorganic and Carbonaceous Components in Indoor/Outdoor Particulate Matter in Two Residential Houses in Oslo, Norway

A detailed analysis of indoor/outdoor physicochemical aerosol properties has been performed. Aerosol measurementswere taken at two dwellings, one in the city center and the other in the suburbs of the Oslo metropolitanarea, during summer/fall and winter/spring periods of 2002–2003. In this paper, emphasis is placed on thechemical characteristics (water-soluble ions and carbonaceous components) of ...

Mar. 3, 2008

By Air & Waste Management Association (A&WMA)

Ambient air quality of Kathmandu valley as reflected by atmospheric particulate matter concentrations (PM10)

This paper presents the analysis and interpretation of ambient particulate matter concentrations measured as PM10 at a network of six air monitoring stations in Kathmandu valley during the years, 2003 through 2005. The purpose was to understand the pollution trends associated with different areas considering levels particulate matter concentrations representing the ambient air quality of ...

Oct. 1, 2006

By Center for Environment and Energy Research & Studies (CEERS)

Distribution patterns of lead accumulation in roadside soils: a case study from Erzurum, Turkey

Surface soils along roadsides or near to industrial areas may contain high concentrations of lead that adversely affect plant production. Lead contamination of roadside soils is generally attributed to the exhaust emissions of automobiles operating with leaded gasoline. The objectives of this study were to determine the relationships between lead accumulation in soils and the distance from the ...

Jan. 26, 2004

By Inderscience Publishers

Roadside particulate levels at 30 locations in the Kathmandu Valley, Nepal

Roadside particulate levels (PM10) at 30 locations throughout the Kathmandu Valley, Nepal are reported. There were seven sampling cycles from January to December 1999. PM10 levels ranged between 1000 and 6000 µ/m³ for 1-h sampling. There was no consistent trend in PM10 levels with respect to monitoring cycle, average precipitation or wind speed. There is no WHO guideline for PM10 (no safe ...

Jan. 26, 2004

By Inderscience Publishers

Investigation of roadside concentrations in busy streets using the model GRAM: conditions leading to high short-term concentrations

A new air quality assessment model GRAM, based on current Gaussian models, is described. It has been specifically designed for convenient assessment of air quality concentrations in relation to new air quality standards. Particular attention is paid to short-term peak concentrations. Factors which are likely to lead to high roadside concentrations are described. It is shown that none of the ...

Jan. 26, 2004

By Inderscience Publishers

Personal exposure to particulate air pollution in transport microenvironments

Personal measurements of exposure to particulate air pollution (PM10, PM2.5, PM1) were simultaneously madeduring walking and in-car journeys on two suburban routes in Northampton, UK, during the winter of 1999/2000.Comparisons were made between concentrations found in each transport mode by particle fraction, between differentparticle fractions by transport mode, and between transport ...

Jan. 1, 2004

By Elsevier Inc.

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