Katupöly on tahdon asia

Tänä vuonna tuli seurattua katupölyasiaa erilainen kriteeri mielessä. Nasta- tutkimusraportti "lähti liikkeelle" siitä että katupöly keväisin on renkaiden vika.

Kun taas seurasin kirjoittelua Kiinassa ja Koreassa, katupöly ja keltainen hiekkapöly autiomaasta on terveysongelma. Kiinalaiset ovat kehittäneet seuranta- ja ennustusjärjestelmiä pölyn esiintymiselle ja korealaiset ovat alkaneet niihin perehtymisen parantaakseen oman maansa pölyennusteita.

Syy erilaisten järjestelmien kehittämiseen ja mahdollisiin autoilun rajoittamisiin vaarallisina aikoina on huoli ihmisten terveydestä. Kun tietoa saadaan kerättyä tarpeeksi, sen pohjalta tehdään poliittisia päätöksiä.

Suomen katupölyongelma on kokonaisuudessaan helposti käsiteltävällä tasolla. JOS ihmisten terveys katupölyn muodossa priorisoidaan poliittisessa päätöksenteossa tärkeäksi, niin silloin keväisin katupölyä ja hiekoitushiekkaa aletaan poistaa heti, kun mahdollista. Kyse on poliittisesta ja katujen kunnossapito-organisaatioiden tahtotilasta.

Tänä keväänä haukuttiin väärää puuta, jos moitittiin nastarenkaita. Kyllä suurimmat todelliset pölypilvet olivat moottoriteiden reunaviivan lähellä. Kun täysikokoinen rekka kiihdytti vauhtinsa ja perävaunu alkoi heijata reunaviivan molemmin puolin, niin näky oli kuin Saharassa  hiekkamyrskyn aikaan.

Myös kaupungeissa näki missä hiekan poisto on asetettu korkealla tehtävien priorisoinnissa. Ilahduttavan paljoin oli myös monen koneen yhdistelmiä, jotka kävivät isompia aluekokonaisuuksia kerralla kuntoon.

Ja ainakin meidän pihassamme talkkari ajoi hiekat + pölyt pois kerralla. Riittävän ajoissa.

Wave of smog and fine dust  envelopes Korea once again

2014-02-25 PM 10:31:12

http://www.arirang.co.kr/News/News_View.asp?nseq=158150

It's a hazy, smoggy Tuesday in Seoul.  Visibility levels are expected to be at of 2.5 kilometers or less across the nation this week.
This is, in part, from the worsening smog in China where fine dust levels have been at least nine times higher than levels recommended by the World Health Organization.

On Tuesday morning here in Korea, the fine dust particles, combined with the fog delayed or cancelled flights at four airports. It was also the second day in which the Seoul City government issued a fine dust advisory and asked people to stay indoors.
The advisory means that the ultra fine particles or PM 2.5 levels are above the threshold of 85 micrograms per cubic meter for more than two hours.  And it looks like these conditions will remain until the arrival of rain, forecast for Thursday nationwide.
But in the WEEKS to come conditions could worsen with the arrival of yellow dust come March.

"As the conditions in the Gobi Desert and in inner Mongolia become drier in March yellow dust could start coming into Korea through northwesterly winds."

The Korea Meteorological Administration says the yellow dust levels this year will be similar to last but instead of conditions peaking in April, the highest levels could come a month earlier.

Toxic dust continues, and showers down south

Updated: 2014-02-25
An ultra fine dust watch is still in effect in Seoul,.. and earlier this morning it was so bad that some flights were even cancelled or delayed.
That's right, and to better deal with the high levels of toxic dust, the city of Seoul has announced that it will double clean-up operations on the roads.
This morning, fine dust readings soared to 236 micrograms per cubic meter in Seoul. Currently, levels have dropped to 176 micrograms, but that's still about 4 times higher than the normal levels, so those with respiratory problems must take caution.
As for the weather, the southern regions are at the edge of a high pressure system which is why people there are seeing cloudy skies.
Earlier this week, the Korean government issued an ultra-fine-dust warning, as the capital's atmospheric concentration levels of the most hazardous PM 2.5 particles hit 98 micrograms per cubic meter.

Seoul, Beijing to develop new smog forecast model 

2014-02-27
Thick, toxic smog has blanketed large parts of central Korea and the capital Seoul over the last few days.
Responding to criticism the country's smog forecast system is not up to standards, Environment Minister Yoon Seong-kyu says Korea will jointly develop a new forecast model with Beijing to better prepare citizens for fine-dust waves that are headed to Korea.
The ministry says China has far superior technology than Korea and Japan in terms of atmospheric forecasting.
Currently, the environment ministry receives information on observational data as it continuously updates emission quantity data.
However once the cooperative model is running, Seoul will be able to use Chinese data directly, helping to improve the accuracy of its forecasts.
No date has been announced yet on when the new system will be up and running.
Seoul's environment ministry has been repeatedly criticized for its inaccurate fine-dust forecasts, after a series of failures to predict the level of fine-dust in the air.
The Chinese government claims to be working on intensive fine-dust reduction measures, pledging to spend tens of billions of dollars to clean up the extremely high levels of air pollution along eastern China and the capital, Beijing.
The toxic particles in the smog carried by winds from China can cause respiratory problems, asthma and chronic obstructive pulmonary diseases.
Earlier this week, the Korean government issued an ultra-fine-dust warning, as the capital's atmospheric concentration levels of the most hazardous PM 2.5 particles hit 98 micrograms per cubic meter.
Shin Se-min, Arirang News.

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