Featured Research

from universities, journals, and other organizations

Understanding Our Smog

Date:
December 12, 2000
Source:
CSIRO Australia
Summary:
Australian research institute, CSIRO, has built a high-tech chamber to understand the chemistry of smog and help predict its precise impact on human health.

Australian research institute, CSIRO, has built a high-tech chamber to understand the chemistry of smog and help predict its precise impact on human health.

"There is a range of compounds that make up airborne pollution and, in Australia, emissions of some of these compounds remain unregulated," says CSIRO's Dr Dennys Angove.

"We will use the smog chamber to investigate a range of synthetic atmospheres comprising naturally occurring hydrocarbons and hydrocarbons from human produced sources

"This will advance our knowledge of the different airborne compounds and how each reacts or changes in the atmosphere. It will also help us understand what happens to the compounds once they have broken down or reacted with the cocktail of chemicals that exist in our air.

"Ultimately, we hope to develop a model that will help regulatory authorities to predict when substances in the air could become harmful to individuals or groups in a specific area. Precautions can then be taken to minimize exposure.

"It will also give atmospheric chemists a greater understanding of how these potentially toxic materials are transported and transformed in the atmosphere.

"The entire area of research into air pollution is now being based around risk assessment. The big question being asked is - how long can you be exposed to something before it harms you?

"The only way to answer this is to know the chemistry of these substances in the atmosphere - a difficult job as they only occur in trace amounts.

"There are other chambers being operated around the world, but the application of new analysis techniques in our chamber will push the science forward significantly."

Dr Angove says, the CSIRO chamber has attracted significant international interest from the United States and Spain where one of Europe's best-known smog chambers is situated.

Last year, at a conference on risk assessment and air pollution in Perth, Australia, it became evident to Dr Angove that there was still considerable conflict among medical experts as to the health impacts of the various components of air pollution.

CSIRO Energy Technology has been studying air pollution for 20 years and has designed and used two smog chambers before the plans for the latest one arose.

"One thing scientists have learnt is that smog is a complex creature that is forcing science to its innovative limits in an effort to understand it," says Dr Angove.

Air pollution occurs in two forms - gases and fine particulates or aerosols. At high enough concentrations, many of the gaseous compounds are recognized as harmful to animals and plants and some, like 1,3-butadiene, are known carcinogens. The aerosols are small enough to enter deep into the lungs and are thought to be one of the factors contributing to lung disease and other human health problems.

The nature of air pollution and the impact it may have depends on a host of factors. These include the pollutant source, reactions in the atmosphere, transport by winds, and removal by clouds, rain, plants and soil.

"Twenty years on we are still trying to understand the complexities of these air toxics. This new chamber will hopefully raise awareness and understanding of just what we are dealing with on a daily basis," says Dr Angove.


Story Source:

The above story is based on materials provided by CSIRO Australia. Note: Materials may be edited for content and length.


Cite This Page:

CSIRO Australia. "Understanding Our Smog." ScienceDaily. ScienceDaily, 12 December 2000. <www.sciencedaily.com/releases/2000/11/001127230016.htm>.
CSIRO Australia. (2000, December 12). Understanding Our Smog. ScienceDaily. Retrieved July 30, 2014 from www.sciencedaily.com/releases/2000/11/001127230016.htm
CSIRO Australia. "Understanding Our Smog." ScienceDaily. www.sciencedaily.com/releases/2000/11/001127230016.htm (accessed July 30, 2014).

Share This




More Earth & Climate News

Wednesday, July 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Big Waves In Arctic Ocean Threaten Polar Ice

Big Waves In Arctic Ocean Threaten Polar Ice

Newsy (July 30, 2014) Big waves in parts of the Arctic Ocean are unprecedented, mainly because they used to be covered in ice. Video provided by Newsy
Powered by NewsLook.com
Raw: Thousands Flocking to German Crop Circle

Raw: Thousands Flocking to German Crop Circle

AP (July 30, 2014) Thousands of people are trekking to a Bavarian farmer's field to check out a mysterious set of crop circles. (July 30) Video provided by AP
Powered by NewsLook.com
Amid Drought, UCLA Sees Only Water

Amid Drought, UCLA Sees Only Water

AP (July 30, 2014) A ruptured 93-year-old water main left the UCLA campus awash in 8 million gallons of water in the middle of California's worst drought in decades. (July 30) Video provided by AP
Powered by NewsLook.com
In Virginia, the Rise of a New Space Coast

In Virginia, the Rise of a New Space Coast

AP (July 30, 2014) Every summer, tourists make the pilgrimage to Chincoteague Island, Va. to see wild ponies cross the Assateague Channel. But, it's the rockets sending to supplies to the International Space Station that are making this a year-round destination. (July 30) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

    Technology News



      Save/Print:
      Share:

      Free Subscriptions


      Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

      Get Social & Mobile


      Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

      Have Feedback?


      Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
      Mobile: iPhone Android Web
      Follow: Facebook Twitter Google+
      Subscribe: RSS Feeds Email Newsletters
      Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins