Haze

Haze is traditionally an atmospheric phenomenon where dust, smoke and other dry particles obscure the clarity of the sky. Whereas Haze often is thought of as a phenomenon of dry air, mist formation is a phenomenon of humid air. The reactions are enhanced in the presence of sunlight, high relative humidity, and stagnant air flow. When weather conditions block the dispersal of smoke and other pollutants they concentrate and form a usually low-hanging shroud that impairs visibility and may become a respiratory health threat. The main source of the Haze has been fires occurring in Sumatra and Borneo. In 2013, due to forest fires in Indonesia, the capital city of Malaysia Kuala Lumpur and surrounding areas became shrouded in a pall of noxious fumes, smelling of ash and coal for more than a week, in the country’s worst environmental crisis since 1997.