Smog makes the Hong Kong skyline barely visible in this view from Victoria Harbor in January, 2004.
After rain washes much of the smog away, the Hong Kong skyline is visible again in this view from Victoria Harbor in January, 2004.
In one of the world’s fastest growing industrial regions, a study finding that a class of pollutants exist at levels four times that of U.S. air quality standards has prompted a Hong Kong public policy group to call for government standards on fine particulate matter. The finding was released by Civic Exchange, a non-profit public policy think tank comprised of scientists as well as representatives from the power and oil industries, government and civic organizations.
The study measured levels of fine particulate matter and ozone, a major component of smog, across Hong Kong and its northern neighbor Guangdong Province. Fine particulate matter is made up of chemical particles less than 2.5 microns in diameter. The main sources of these particles are the burning of coal for energy, emissions from gasoline and diesel vehicles and the burning of other organic material such as vegetation and trash. “By far the highest levels in the region were found in Guangdong where measurement sites showed levels of particulates as high as four times the U.S. National Ambient Air Quality Standard,” said Michael Bergin, principal investigator for the fine particulate segment of the study and associate professor in the School of Earth and Atmospheric Sciences and the School of Civil and Environmental Engineering at the Georgia Institute of Technology. According to the U.S. Environmental Protection Agency (EPA), the class of pollutants has been proven to be harmful to human health and long-term exposure can lead to reduced lung function, chronic bronchitis and premature death.
“Sites in Hong Kong were roughly twice the U.S. standards,” said Bergin. “Overall it appears to us that, with regard to particulate matter, Hong Kong air quality is being seriously impacted by Guangdong province in mainland China just to the north”.
David Terraso | EurekAlert!
New mathematical model can help save endangered species
14.01.2019 | University of Southern Denmark
Foxes in the city: citizen science helps researchers to study urban wildlife
14.12.2018 | Veterinärmedizinische Universität Wien
World first experiments on sensor that may revolutionise everything from medical devices to unmanned vehicles
The new sensor - capable of detecting vibrations of living cells - may revolutionise everything from medical devices to unmanned vehicles.
Dead and alive at the same time? Researchers at the Max Planck Institute of Quantum Optics have implemented Erwin Schrödinger’s paradoxical gedanken experiment employing an entangled atom-light state.
In 1935 Erwin Schrödinger formulated a thought experiment designed to capture the paradoxical nature of quantum physics. The crucial element of this gedanken...
Cellulose obtained from wood has amazing material properties. Empa researchers are now equipping the biodegradable material with additional functionalities to produce implants for cartilage diseases using 3D printing.
It all starts with an ear. Empa researcher Michael Hausmann removes the object shaped like a human ear from the 3D printer and explains:
The phenomenon of so-called superlubricity is known, but so far the explanation at the atomic level has been missing: for example, how does extremely low friction occur in bearings? Researchers from the Fraunhofer Institutes IWM and IWS jointly deciphered a universal mechanism of superlubricity for certain diamond-like carbon layers in combination with organic lubricants. Based on this knowledge, it is now possible to formulate design rules for supra lubricating layer-lubricant combinations. The results are presented in an article in Nature Communications, volume 10.
One of the most important prerequisites for sustainable and environmentally friendly mobility is minimizing friction. Research and industry have been dedicated...
Just in time for Christmas, a Mars-analogue mission in Morocco, coordinated by the Robotics Innovation Center of the German Research Center for Artificial Intelligence (DFKI) as part of the SRC project FACILITATORS, has been successfully completed. SRC, the Strategic Research Cluster on Space Robotics Technologies, is a program of the European Union to support research and development in space technologies. From mid-November to mid-December 2018, a team of more than 30 scientists from 11 countries tested technologies for future exploration of Mars and Moon in the desert of the Maghreb state.
Close to the border with Algeria, the Erfoud region in Morocco – known to tourists for its impressive sand dunes – offered ideal conditions for the four-week...
16.01.2019 | Event News
14.01.2019 | Event News
12.12.2018 | Event News
17.01.2019 | Materials Sciences
17.01.2019 | Information Technology
17.01.2019 | Physics and Astronomy