Large-scale DSS has occurred over a wide area of China, and in the capital city of Beijing, the city is yellow and hazy due to the sand that flew in, affecting the lives of citizens.
On the other hand, in Japan, DSS is expected to fly over a wide area from the north Japan to the west Japan from the 12th to the 13th, and the Japan Meteorological Agency is calling for attention to the impact on traffic.
China's meteorological authorities say "massive DSS outbreak"
According to the Chinese meteorological authorities, sand rolled up in inland areas and neighboring Mongolia spread due to strong winds caused by cold weather, and large-scale DSS occurred over a wide area, mainly in the northern part of the country, from the 10th to the 11th.
In Beijing, the capital city, the air pollution level was the worst of the six levels on the 10th, followed by the 11th.
Beijing's yellow, hazy city, many citizens wear masks
Car windows are covered with sand, and many citizens are wearing masks when walking, affecting their lives.
A woman in her 40s said, "I can't open the window, it's inconvenient to go out, and I think the yellow sand is worse than before."
In addition, a man in his 30s said, "It is difficult to drive a car, and the impact is serious."
China's state-run Xinhua News Agency "Many yellow dust outbreak cases"
The state-run Xinhua News Agency recently reported an expert analysis that DSS has increased due to low rainfall in northern China and Mongolia and high seasonal strong winds.
China's meteorological authorities are warning that DSS is expected
to be observed in northern and eastern parts of China through the 12th, protecting your nose and mouth with masks and scarves when going out,
and cautioning against overspeeding when driving because of poor visibility.
Japan Yellow sand flying from the 12th to the 13th?
On the other hand, in Japan, it is expected to rain nationwide on the 12th, and then DSS is expected to fly over a wide area from the north Japan to the west Japan until the 13th, and the Japan Meteorological Agency is calling for attention to the impact on traffic.
On the 12th, a cold front extending from the low pressure system will pass near the Japan, and cold air will flow in from the north and rain is expected to fall nationwide. After the passage of the front, it is necessary to pay attention to DSS over a wide area from the north Japan to the west Japan.
The DSS will gradually reach the Japan area by the winds aloft, and from the 12th to the 13th, the "visibility" is expected to be less than 10 km over a wide area of the Japan, and in some places less than 5 km.
In addition to the expected effects such as yellow sand adhering to laundry outdoors, traffic may be affected if the visibility is less than 5 km, and the Japan Meteorological Agency is calling for caution.
When is yellow sand? Where?
According to the latest distribution forecast of the Japan Meteorological Agency, DSS is expected to spread to the northeastern part of China and the Korean Peninsula by the evening of the 11th.
Reached the Japan Sea side on the morning of the 12th, and around noon on the 12th, in Tohoku and Hokkaido
It is expected to reach the Japan Sea side from the northern Japan to the west Japan in the morning of the 12th, and the concentration near the surface is expected to increase around noon, mainly in Tohoku and Hokkaido.
Night of the 12th ~ morning of the 13th Wide area including the Pacific side
After that, from the night of the 12th to the morning of the 13th, it will spread over a wide area including the Pacific Ocean side, and on the 14th, it is expected to pass into the sea east of Japan.
If the concentration of DSS near the ground surface increases, dirt may form on laundry and cars, and deterioration of visibility may affect aircraft takeoffs and landings, so caution is required.
What is the effect of DSS on people?
Regarding the effects of DSS on humans, the Ministry of the Environment has published "DSS and its Health Effects" on its website based on the results of research so far.
According to the report, the association with DSS is reported to be
allergic symptoms such as itchy eyes, conjunctivitis, runny nose and sneezing, and worsening of respiratory diseases such as bronchial asthma and
pneumonia.
Hospitalization for bronchial asthma caused by DSS has a particularly large impact on children and the elderly.
In addition, there have been reports of an association between DSS flight and an increase in hospitalizations and incidence due to myocardial infarction as an effect on cardiovascular disease, but it is not known how DSS is related to the onset.
In order to prevent the health effects of DSS, it is desirable to act more cautiously, especially for people with respiratory and cardiovascular diseases, children and the elderly.
We are urging people to refrain from going out non-essential and
wear non-woven masks to reduce the amount of DSS inhaled.