Evaluating near highway air pollutant levels and estimating emission factors: Case study of Tehran, Iran

The Science of the Total Environment
Mohammad Nayeb YazdiMohammad Arhami

Abstract

A field sampling campaign was implemented to evaluate the variation in air pollutants levels near a highway in Tehran, Iran (Hemmat highway). The field measurements were used to estimate road link-based emission factors for average vehicle fleet. These factors were compared with results of an in tunnel measurement campaign (in Resalat tunnel). Roadside and in-tunnel measurements of carbon monoxide (CO) and size-fractionated particulate matter (PM) were conducted during the field campaign. The concentration gradient diagrams showed exponential decay, which represented a substantial decay, more than 50-80%, in air pollutants level in a distance between 100 and 150meters (m) of the highway. The changes in particle size distribution by distancing from highway were also captured and evaluated. The results showed particle size distribution shifted to larger size particles by distancing from highway. The empirical emission factors were obtained by using the roadside and in tunnel measurements with a hypothetical box model, floating machine model, CALINE4, CT-EMFAC or COPERT. Average CO emission factors were estimated to be in a range of 4 to 12g/km, and those of PM10 were 0.1 to 0.2g/km, depending on traffic conditions. Variations of ...Continue Reading

References

Sep 25, 2002·Journal of the Air & Waste Management Association·Yifang ZhuConstantinos Sioutas
Apr 20, 2004·Toxicology Letters·Norbert Englert
Aug 5, 2004·Journal of Exposure Analysis and Environmental Epidemiology·Michael JerrettChris Giovis
Oct 9, 2004·International Journal of Hygiene and Environmental Health·Andreas D KapposH Erich Wichmann
Feb 5, 2010·Respiratory Medicine·Malek BentayebIsabella Annesi-Maesano
Oct 8, 2011·The Science of the Total Environment·Yebin TaoWei Huang
May 17, 2013·Epidemiology·Perry HystadMichael Brauer
Dec 18, 2013·Environmental Pollution·Maigeng ZhouHaidong Kan
Mar 13, 2014·Journal of Exposure Science & Environmental Epidemiology·Shin YamazakiHiroshi Nitta
Oct 10, 2014·The Science of the Total Environment·Sharon MoltchanovBarak Fishbain
Oct 25, 2014·Journal of Environmental Health Science & Engineering·Saeed Sotoudeheian, Mohammad Arhami
Dec 3, 2014·The Journal of Allergy and Clinical Immunology·Sylvia BrandtRob McConnell

❮ Previous
Next ❯

Citations

Mar 2, 2016·The Science of the Total Environment·Ming-Yeng LinAndrey Khlystov
Jun 7, 2017·Technology and Health Care : Official Journal of the European Society for Engineering and Medicine·Shihong YueJun Chen
Aug 28, 2018·Journal of the Air & Waste Management Association·Yaru WangJun Chen
Oct 1, 2017·Environmental Health Perspectives·Robert J BlountPayam Nahid
Jul 12, 2019·Environmental Science and Pollution Research International·Ali Heydarizadeh, Davood Kahforoushan
Nov 9, 2018·Environmental Science and Pollution Research International·Mohammad Nayeb YazdiMehdi Ketabchy
Aug 27, 2018·Journal of Environmental Management·Mehdi KetabchyMohammad Nayeb Yazdi
Jun 22, 2021·Journal of Environmental Health Science & Engineering·Javad TorkashvandMajid Kermani

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.