Japan smog causes concerns
Japan is encountering high levels of ‘photochemical’ smog, even appearing in rural areas. Warnings for hazardous smog have been issued in 28 regions so far this year. The government is careful about where it places the blame, but many experts are pointing the finger at China, for this and other environmental concerns, such as acid rain and toxic sandstorms.
Photochemical smog is produced when sunlight reacts with exhaust fumes from cars and factories and consists of photochemical oxidant particles, which can lead to breathing problems and headaches.
It is not yet known precisely how much of Japan’s smog originates in China. Research into the area is a complex task because whilst Japan has been cutting emissions since the 1970s, those arising from paint and gasoline vapours are still a factor in exacerbating smog.
As a preliminary measure Japan is working with China to record its pollution levels. Ohara at the National Institute of Environmental studies has said that if cross-border pollution produces dramatic effects, it will be essential to create, “international regulatory rules within East Asia, similar to Europe.”
[via ENN]
