Open AWE Magazine menu
Subscribe Login

Home / Articles and Press Releases / Press Release / Jury Remains Out on Odd-Even Car Trials

CATEGORIES

  • Latest Issue
  • Air Quality
  • Chromatography
  • Construction
  • Climate Change
  • Emissions
  • Environmental & Monitoring Technology
  • Gas Detection
  • Health and Safety Awareness
  • Humidity & Temperature
  • Laboratory Testing
  • Land Remediation
  • Marine Pollution
  • Noise Monitoring
  • Regulations & Legislations
  • Sludge and Biosolids
  • Soil Analysis
  • Spectroscopy
  • Weather Monitoring
  • Water Analysis
  • Water Monitoring

MORE

  • Press Releases
  • Events
  • Videos
  • Magazines
  • Webinar Sign Up

COMPANY

  • About
  • Advertising
  • Newsletter
  • Contact
HSI White logo
Open AWE Magazine menu
Subscribe

Home / Articles and Press Releases / Press Release / Jury Remains Out on Odd-Even Car Trials

CATEGORIES

  • Latest Issue
  • Air Quality
  • Chromatography
  • Construction
  • Climate Change
  • Emissions
  • Environmental & Monitoring Technology
  • Gas Detection
  • Health and Safety Awareness
  • Humidity & Temperature
  • Laboratory Testing
  • Land Remediation
  • Marine Pollution
  • Noise Monitoring
  • Regulations & Legislations
  • Sludge and Biosolids
  • Soil Analysis
  • Spectroscopy
  • Weather Monitoring
  • Water Analysis
  • Water Monitoring

MORE

  • Press Releases
  • Events
  • Videos
  • Magazines
  • Webinar Sign Up

COMPANY

  • About
  • Advertising
  • Newsletter
  • Contact

CATEGORIES

  • Heat and Flame
  • Press Release|Gas Detection
  • Article
  • Press Release
  • Air Quality
  • Chromatography
  • Construction
  • Climate Change
  • Emissions
  • Environmental & Monitoring Technology
  • Gas Detection
  • Health and Safety Awareness
  • Humidity & Temperature
  • Laboratory Testing
  • Land Remediation
  • Marine Pollution
  • Noise Monitoring
  • Personal Protective Equipment
  • Regulations & Legislations
  • Sludge and Biosolids
  • Soil Analysis
  • Spectroscopy
  • Weather Monitoring
  • Water Analysis
  • Water Monitoring
  • Wellbeing at work

Press Release

Jury Remains Out on Odd-Even Car Trials

By Paul Edwards

| Read Bio

Published: January 01st, 1970

Share this article

Odd-even car trials in Delhi can have an impact on reducing air pollution from certain hours of the day – but the persistence of overnight emissions from trucks could render them useless, a new study has found.

A team of UK and Indian researchers, led by Dr Prashant Kumar from the University of Surrey, assessed the impact of ‘odd-even’ car trials on air pollution in Delhi. The trials involved personal vehicles allowed to drive in the city on alternating days between 8 am and 8 pm depending on whether their registration ended with an odd or even number.

The study found that at certain hours pollution was reduced during the odd-even trial compared with the corresponding days in a previous year, but the impact of the trial was negligible in the morning hours (8 am-11 am) because of the residual pollution caused by overnight goods lorries. The study also found that pollution levels were highest during the winter months and lowest during the monsoon season.

The researchers evaluated the data to produce a first technical assessment on the topic. Recent studies have ranked Delhi as the ‘worst’ polluted city in the world, and despite numerous schemes to reduce the air pollution level, the high concentrations of the particulate matter still remain a major concern.

The earlier work of the team unraveled causes of pollution in Delhi. They highlighted densely packed architecture, and varying building heights, adding to the ‘breathability’ of the city being inhibited by its weather conditions. The city’s stable dispersion conditions during winters and the pollution from outside Delhi areas make the problem worse during winters while windy and dusty conditions during summer exacerbate this problem.

Dr Prashant Kumar, who led the research, said: “We welcome the attempts to reduce pollution levels but, while the results of this trial seem to suggest it has had an impact, the jury is still out and carefully designed studies are needed if an effect due to traffic alone is to be differentiated from the larger effect caused by changes in traffic volume and meteorology.

“We found that the pollution caused by heavy goods vehicles operating overnight was still prevalent in the morning rush hour, which meant there was no significant reduction in air pollution.

“At the very least, restricting the times of lorries entering Delhi, or compressing their early morning hours when they are allowed into the city, would help to reduce pollution levels during the morning rush hour, as it would give levels time to disperse. It is vital to attempt to control air pollution, especially during the morning hours. This is when children travel to school, commuters to work, and people jog or exercise outdoors, so almost everyone is exposed to pollution at this time.”

Co-author Professor Roy Harrison said: “One of the main values of this study has been to highlight the contribution of night-time truck traffic to daytime pollution levels. Strategies designed to remedy Delhi’s severe air pollution problems need to be mindful of this fact, and should also consider the role of other nocturnal emissions on daytime air quality.”

The other co-author, Professor Mukesh Khare, added “Such studies have the definite potential of identifying the factors affecting the urban ambient pollutant levels as a result of mitigation measures like the recently conducted ‘odd-even’ trials in Delhi city. Meteorology has been observed as one of the most significant parameters affecting the efficacy of such air pollution management strategies in any urban environment.”

Written by the staff at the University of Surrey – For original article click here.

Share this article

ABOUT THE AUTHOR

Paul Edwards

Digital Market Apprentice at Bay Publishing, curating what gets published across all of our digital products. If you spot a mistake or would like to read more about a certain topic on any of our magazine websites let me know using the contact button above.

POPULAR POSTS BY Paul Edwards

Press Release

Mercury Pollution Watchdog to Set Up in Geneva

Press Release

Poison Flows in Ergene River

Press Release

Company Fined for Polluting River

Press Release

Significant Drop in Israel’s Factory Pollution

Press Release

Putin Called To Get Rid Of Coal Dust

Press Release

Farmers Asked to Watch for Water Pollution

Get email updates

Sign up for the AWE newsletter

Keep up-to-date through the power of email and receive the latest environmental monitoring product information and newsletter emails from AWE - Monitoring and Analysing the Impact of Industry on the Environment

"*" indicates required fields

Country
*
This field is for validation purposes and should be left unchanged.

FEATURED ARTICLES

Press Release

Blackline Safety and NevadaNano Reach Milestone in Deployment of Industry-First Sensors

Press Release

The Benefits of Using Refurbished Parts in Your Lab

Advertisement

SOCIAL MEDIA

AWE on Facebook

https://www.facebook.com/AWEIMagazine/

Advertisement

SOCIAL MEDIA

AWE on Twitter

Avatar AWE International Magazine @aweimagazine ·
4h

Alphasense has increased its production capacity, automated elements of calibration and upgraded software for its OPC products to meet rising industry demand.

Find out more today:
https://www.aweimagazine.com/press-release/increased-demand-for-air-quality-improvements-leads-to-investment-in-alphasense-opc-production/

#aweinternational #alphasense #particlecounter #OPC

Reply on Twitter 1641389929895788547 Retweet on Twitter 1641389929895788547 Like on Twitter 1641389929895788547 Twitter 1641389929895788547

Advertisement

SUBSCRIBE

Stay up to date with our newsletter

    • Keep up-to-date with Europe’s largest audited environmental monitoring magazine

 

    • Delivering the latest information on new products and emerging technologies related to industrial environmental monitoring.

 

This field is for validation purposes and should be left unchanged.

Subscribe

SUBSCRIBE TO AWE MAGAZINE

5 reasons to subscribe to our digital and print package

  • Stay up to date from anywhere in the world, with instant access to the latest issue straight from your phone, tablet or laptop.
  • Trust that you’re getting the best content from our range of internationally accredited authors.
  • Get full access to our archives and see how the environmental monitoring landscape has evolved with us over the years.
  • Enjoy our monthly newsletter curated with up-to-the-minute news and a selection of editor’s top picks.
  • Hot off the press and straight to your door – look forward to your own glossy copy of AWE, delivered five times a year
Subscribe View Subscription levels

STAY SAFE & INFORMED

Subscribe to the latest environmental monitoring articles, news, products and regulations

Find out more

Stay up to date with our newsletter

  • This field is for validation purposes and should be left unchanged.

ABOUT

  • About AWE
  • Advertise
  • Contact Us

YOUR ACCOUNT

Sign In Register Account Subscribe to AWE

RESOURCES

Request Media Pack

CONNECT

ACCREDITATIONS

Copyright Bay Publishing 2023. All Rights reserved.

Designed & Built by:
  • Terms & Conditions
  • Privacy Policy
  • Cookie Policy
We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept”, you consent to the use of ALL the cookies.
Cookie settingsACCEPT
Manage consent

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
CookieDurationDescription
cookielawinfo-checbox-analytics11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checbox-functional11 monthsThe cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checbox-others11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-necessary11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-performance11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy11 monthsThe cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
Functional
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Performance
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Analytics
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
Advertisement
Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
Others
Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.
SAVE & ACCEPT