Haze

: Large-scale forest and land fires release dense smoke and particulate matter.

Haze is produced by both natural and human-induced activities that release particles and gases into the atmosphere. : Large-scale forest and land fires release dense

: Vehicle exhausts, industrial activities, and the burning of fossil fuels release nitrogen dioxide ( NO2cap N cap O sub 2 ) and sulfur dioxide ( SO2cap S cap O sub 2 ), which react to form sulfates and other fine particles. : Large-scale forest and land fires release dense

: Dry seasons, low rainfall, and weather patterns like El Niño can exacerbate the frequency and intensity of haze events. 3. Key Impacts EXECUTIVE SUMMARY - ASEAN : Large-scale forest and land fires release dense