| http://www.w3.org/ns/prov#value | - The level of particulate matter and air pollutants including sulfur oxide and nitrogen oxide in major cities surpassed two times the standard in recent days, prompting authorities to issue health advisories and environmentalists to take to streets. ???The recent smog in Korea is a mixture of air pollutants coming from China, water vapor and polluting substances (mixed into the snowmelt),??? said K
|
