Pattaya Mail - DC-8 aircraft, an iconic 55-year-old plane known for its extensive research capabilities, conducted its final flight over Chiang Mai province on Monday (March 18) as part of an air quality study in the North and various parts in Thailand.

According to the National Astronomical Research Institute of Thailand (NARIT), the flight, part of the Airborne and Satellite Investigation of NASA’s Asian Air Quality (ASIA-AQ) project, was conducted with the aim of analyzing air pollution dispersion at various atmospheric levels.