Starting on July first, grade-five emissions vehicles will be prohibited access to roads inside Seoul City's "green transportation zone."

Mayor Park Won-soon announced the city government's set of measures to tackle fine dust on Monday and said some two-point-45 million registered vehicles will be restricted from entering the area.  

The 16-point-seven-square-kilometer green zone includes eight areas in Jongno district and seven areas in the Jung district in central Seoul. The city is considering enforcing the travel restriction between 6:00 a.m. to 7:00 p.m. or 6:00 a.m. to 9:00 p.m.

The city will offer a grace period until the end of November and impose a fine of 250-thousand won for violators starting on December first.

Seoul also plans to nearly double the state subsidy for scrapping over three-thousand-700 grade-five emissions vehicles owned by residents in the affected areas. 

A final decision on the grace period and the subject of restriction will be made after a public hearing.