Air pollution: Two people sit on a bench before the Han River and the Seoul city skyline during heavily polluted weather on Monday. The worst winter seasonal yellow dust in five years blanketed the Korean Peninsula, prompting the authorities to issue health warnings against the sandy, chemical-laden wind from China, according to domestic media. On a scale based on US Environmental Protection Agency standards, levels of fine particulate matter of 10 micrometers or less (PM10) exceeding the maximum recordable level of 999 is rated as “hazardous”. Levels of the finer and more harmful PM 2.5 reached 259 on the same scale, a rating recorded as “very unhealthy”. (AFP/ Ed Jones) - See more at: http://m.thejakartapost.com/news/201....dmKgpO32.dpuf