South Korea, China and Japan have agreed to strengthen a joint research project to combat yellow dust originating in China's northern provinces, a local environmental research body said Monday.
  

The three countries have decided to increase the number of monitoring stations and the period of analysis starting next year, during the 18th Expert Meeting on Long-range Transboundary Air Pollutants in Northeast Asia held last week, the National Institute of Environmental Research said.
  

In South Korea, besides three existing ones, an additional measuring point will be constructed on Baengnyeongdo Island, the nation's westernmost island, located close to the inter-Korean border.
  

China and Japan have also decided to additionally establish a monitoring station on Tuoji Island and one on Tsushima, respectively, according to the NIER.
  

The measurement targets include particles smaller than 10 micrometers in diameter, also called PM 10 concentrations, as well as PM 2.5, sulfur dioxide and nitrogen dioxide, the organization said.
  

In terms of ultrafine particles of PM 2.5, the three countries have agreed to share measurement data and analyze together in order to increase the accuracy of their research.
  

The joint research project was launched in 1995 following South Korea's proposal to more effectively deal with dust storms from China, which affects the lives of citizens and industries in the three countries.
  

After three decades of rapid industrialization, China regularly sees hazardous air pollution with levels of particulate matter rising to nearly 40 times the limits set by the World Health Organization during the winter months.
  

The levels of air pollution in South Korea have also been jumping during the winter months, as westerly winds carry smog from China to the Korean Peninsula, causing environmental and respiratory damage. (Yonhap)