Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Strimmers are worse than motorway traffic

31.05.2013
Motorway maintenance workers are exposed to various harmful emissions. Surprisingly, motorised hand-held tools such as strimmers and chainsaws, rather than motorway traffic, are responsible for the highest emissions of particulate matter. These are the conclusions of a study supported by the Swiss National Science Foundation (SNSF).

The study was conducted between May 2010 and February 2012 by researchers working with Michael Riediker at the Institute for Work and Health in Lausanne. They accompanied 18 maintenance workers on 50 working days during tasks such as clearing snow, mending crash barriers, cleaning drains, cutting wood or mowing grass on the motorway central reservation.

They measured the levels of air pollution, particulates and noise to which workers were exposed during each activity. The result (*): compared to the average population, maintenance workers are exposed to between three and eight times higher particulate levels. In addition, noise levels often exceed the critical level of 85 decibels.

"Real belchers"
Surprisingly, motorway traffic is not the main source of noise and pollutants. More than 50 percent of airborne particulates are emitted by strimmers and chainsaws. "The small combustion engines which the workers carry on their backs use petrol with oil additives. This makes them real belchers," says Reto Meier, the lead author of the study. The quickest way to reduce particulate levels, therefore, is to improve the engines in these machines. This is primarily a challenge for the manufacturers, but Meier adds that employers can also play a role by considering emission levels when purchasing equipment.

Hearing protection
Maintenance workers are exposed to the highest noise levels when using pneumatic drills. But the use of strimmers or chainsaws and the traffic during maintenance work in tunnels also give rise to noise levels of 90 decibels or more. Researchers noticed that workers wear hearing protection reliably when they are the cause of the noise, but often fail to do so when the noise is caused by their colleagues or by the traffic. "To prevent damage to the ears, protection should be worn whenever possible," says Meier.

(*) Reto Meier R.1, Wayne E. Cascio, Brigitta Danuser, Michael Riediker (2013). Exposure of highway maintenance workers to fine particulate matter and noise. Annals of Occupational Hygiene online: doi:10.1093/annhyg/met018
(available as a PDF from the SNSF; e-mail: com@snf.ch)

Contact
Reto Meier
Institute for Work and Health
Rue du Bugnon 21
CH-1011 Lausanne
Tel.: +41 21 314 74 36
E-mail: reto.meier@hospvd.ch

Abteilung Kommunikation | idw
Further information:
http://www-snsf.ch

More articles from Studies and Analyses:

nachricht Win-win strategies for climate and food security
02.10.2017 | International Institute for Applied Systems Analysis (IIASA)

nachricht The personality factor: How to foster the sharing of research data
06.09.2017 | ZBW – Leibniz-Informationszentrum Wirtschaft

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Ocean atmosphere rife with microbes

17.10.2017 | Life Sciences

Neutrons observe vitamin B6-dependent enzyme activity useful for drug development

17.10.2017 | Life Sciences

NASA finds newly formed tropical storm lan over open waters

17.10.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>